406DUO V1.2.0

Synchronous Balance Charger/Discharger

406DUO User's Manual (V1.2.0)
Index
User Notice ........................................................................................................................................... - 4 Safety Notes ............................................................................................................................... - 4 Copyright .................................................................................................................................... - 5 406DUO Special Features .......................................................................................................... - 5 Appearance Parameters .............................................................................................................. - 5 Specifications ............................................................................................................................. - 6 Device Introduction ............................................................................................................................ - 7 406DUO Parts & Interface Introduction .................................................................................... - 7 406DUO Buttons Function & Icons Description ....................................................................... - 7 406DUO Standard Accessories .................................................................................................. - 9 406DUO Optional Accessories .................................................................................................. - 9 The Order of Connection for Charger ............................................................................................ - 10 The Power Input Ground Cannot be Connected with the Output Ground ............................... - 10 The Order of Connection .......................................................................................................... - 10 Dual-channel Connection Notes ............................................................................................... - 10 Connection for Channel Asynchronous Mode ........................................................................................... - 10 Connection for Channel Synchronous Mode ............................................................................................. - 11 -iCharger Charge/Discharge Setup & Use ....................................................................................... - 12 Power Supply Setup ................................................................................................................. - 12 Program Add & Manage........................................................................................................... - 13 Run Program for Charger ......................................................................................................... - 13 Program Running Status ........................................................................................................... - 14 Error Messages ......................................................................................................................... - 15 Program Edit............................................................................................................................. - 15 LiPo/LiIo/LiFe Battery Charge/Discharge Setup ...................................................................................... - 16 LiPo/LiIo/LiFe Battery Charge Setup .................................................................................................... - 16 LiPo/LiIo/LiFe Battery Not Balance Charge Setup ............................................................................. - 17 LiPo/LiIo/LiFe Battery Balance Charge Setup .................................................................................... - 17 LiPo/LiIo/LiFe Battery Charge Advanced Setup ................................................................................. - 18 LiPo/LiIo/LiFe Battery Charge Safety Setup ....................................................................................... - 19 LiPo/LiIo/LiFe Battery Storage Setup ................................................................................................... - 19 LiPo/LiIo/LiFe Battery Discharge Setup ............................................................................................... - 19 To Channel Setup ................................................................................................................................. - 20 LiPo/LiIo/LiFe Battery Discharge Advanced Setup............................................................................. - 20 LiPo/LiIo/LiFe Battery Discharge Safety Setup .................................................................................. - 20 LiPo/LiIo/LiFe Battery Cycle Setup ...................................................................................................... - 21 LiPo/LiIo/LiFe Battery Only Balance Feature ....................................................................................... - 21 NiMH/NiCd Battery Charge/Discharge Setup ........................................................................................... - 21 NiMH/NiCd Battery Charge Setup ........................................................................................................ - 21 NiMH/NiCd Battery Charge Advanced Setup ..................................................................................... - 22 NiMH/NiCd Battery Charge Safety Setup ........................................................................................... - 22 --1-

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NiMH/NiCd Battery Discharge Setup.................................................................................................... - 22 NiMH/NiCd Battery Discharge Safety Setup ...................................................................................... - 22 NiMH/NiCd Battery Cycle Setup .......................................................................................................... - 23 Pb Battery Charge/Discharge Setup........................................................................................................... - 23 Pb Battery Charge Setup ........................................................................................................................ - 23 Pb Battery Charge Advanced Setup ..................................................................................................... - 23 Pb Battery Charge Safety Setup ........................................................................................................... - 24 Pb Battery Discharge Setup.................................................................................................................... - 24 Pb Battery Cycle Setup .......................................................................................................................... - 24 NiZn Battery Charge/Discharge Setup ...................................................................................................... - 24 NiZn Battery Charge Setup .................................................................................................................... - 24 NiZn Battery Not Balance Charger Setup ............................................................................................ - 24 NiZn Battery Balance Charge Setup .................................................................................................... - 24 NiZn Battery Charge Advanced Setup ................................................................................................. - 25 NiZn Battery Charge Safety Setup ....................................................................................................... - 25 NiZn Battery Discharge Setup ............................................................................................................... - 25 To Channel Setup ................................................................................................................................. - 25 NiZn Battery Discharge Advanced Setup ............................................................................................ - 25 NiZn Battery Discharge Safety Setup .................................................................................................. - 25 NiZn Battery Cycle Setup ...................................................................................................................... - 25 -406DUO Parameters Setup .............................................................................................................. - 26 406DUO Parameters Setup ...................................................................................................... - 26 Charger Setup ............................................................................................................................................ - 26 Temp. & Fans Setup ............................................................................................................................... - 26 Beep Tone Setup..................................................................................................................................... - 27 LCD Setup.............................................................................................................................................. - 27 Output Power Setup ............................................................................................................................... - 27 Power Supply Setup ............................................................................................................................... - 28 Save & Load Configuration Setup ......................................................................................................... - 28 Communication Settings ........................................................................................................................ - 29 Language Setup ...................................................................................................................................... - 29 Calibration.............................................................................................................................................. - 30 Extra Function ........................................................................................................................................... - 31 Log Files Manage................................................................................................................................... - 31 Servo Test ............................................................................................................................................... - 31 Pulse Measurement ................................................................................................................................ - 33 -USB & SD Card Use ................................................................................................................ - 33 Warranty & Service .................................................................................................................. - 33 406DUO Firmware Upgrades .......................................................................................................... - 34 Firmware Upgrades via USB Port ............................................................................................ - 34 Firmware Upgrades via SD Card ............................................................................................. - 35 Use Logview for 406DUO ................................................................................................................. - 36 Communication Steps............................................................................................................... - 36 Important Notes ................................................................................................................................ - 38 The Charging Principle for Reflex Charge Mode .................................................................... - 38 -2-

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Synchronous Balance Charger/Discharger
Power Regenerative Mode ....................................................................................................... - 38 Channel Regenerative Mode .................................................................................................... - 38 Resistance or Bulbs.................................................................................................................................... - 38 Charging Battery ........................................................................................................................................ - 39 -Lithium Battery Extra Discharge Mode ................................................................................... - 39 Appendix ............................................................................................................................................ - 40 Status Indication of Running Channel ...................................................................................... - 40 Status Indication of Channel Control ....................................................................................... - 40 Error Messages ......................................................................................................................... - 41 --3-

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Synchronous Balance Charger/Discharger

User Notice Safety Notes
Please read the entire Manual completely before using, to make sure you can use this device properly and moresafely.
1

406DUO is a dual port charger, but this does not mean you can charge/discharge any
configuration of the two sets of batteries! You must follow these rules: two battery packs
without any external electrical connections, otherwise they could permanently damage thecharger or batteries. For example: when charging a 12-cell battery pack, you must split itinto two separate 6-cell, and you must never charge two 6-cell battery packs in series byconnecting with CH-1 and CH-2 respectively.

2

406DUO input power cannot have fast voltage/current fluctuations, which may cause output
over current, and will damage the charger and/or the batteries and input power source inextreme cases. For example: setting the input protection current and voltage is necessary
according to the specifications of the input power supply, in order not to cause power
overload. Some power supply overload protection circuits will produce substantial
fluctuations in the supply voltage.

3

Keep the charger away from children and pets at all times.

4

Never leave the charger unsupervised when charging or discharging. If you leave, disconnect the battery and switch
off charger to prevent any unexpected dangers or damage.

5

Ensure the charger program and settings match the battery pack otherwise the battery will be damaged and adangerous situation may arise, especially for Lithium batteries, which may cause a fire.

6

Do not mix batteries of different types, different capacities or from different manufacturers.

7

Do not disassemble the charger.

8

Do not place the charger or any battery on a flammable surface or near a combustible material while in use. Do not
charge or discharge on a carpet, cluttered workbench, paper, plastic, vinyl, leather or wood, inside an R/C model orinside a full-sized automobile.

9

Never block the air intake holes and never use in a refrigerated or high temperature environment. If used in such anenvironment, the internal temperature protection may result in abnormal charging/discharging that could be
dangerous.

10 Do not allow water, moisture, metal wires or other conductive material into the charger.
11 Never charge or discharge any battery having evidence of leaking, expansion/swelling, damaged outer cover or case,color-change or distortion.
12 Do not try to charge “non-rechargeable” dry cells.
13 Do not exceed the battery manufacturer’s suggested maximum charge rates.
14 Carefully follow the battery pack manufacturer’s recommendations and safety advice.

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Synchronous Balance Charger/Discharger

 Copyright
Copyright@ 2013 Shenzhen New Junsi Electronic Co., Ltd. All Rights Reserved.
Without prior written consent by Shenzhen New Junsi Electronic Co., Ltd, any units or individual extracts or copies ofpart or the entire contents of this manual, and transmission in any form is illegal and strictly prohibited.
The product described in this manual may include copyright software ownership belonging to Shenzhen New Junsi
Electronic Co. Ltd and its licensee, except with the express permission from relevant rights holders, otherwise,
any copying, distribution, modification, excerpt, de-compilation, disassembly, decryption, reverse engineering, lease,transfer, sub-license, as well as other acts of infringement of software copyright is strictly prohibited, but apart from therestrictions prohibited by applicable law.

 406DUO Special Features
1

The 406DUO uses advanced Synchronous buck-boost DC/DC converter technology, high power, a high current andhigh-performance power conversion circuit. The maximum charge power capacity is up to 1400W, the maximum
charge/discharge current of a channel is up to 40A, and two channels in Synchronous Mode are up to 70A.
2 Each channel supports 6s LiPo, Lilo, LiFe and NiZn batteries, with maximum 1.2A balance current, and adopts a
unique balance calculation of internal resistance correction. Supports 1-20s NiMH/NiCd batteries and 1-12s Pb
batteries.
3 With 1A/5V USB charging port, convenient for the user to charge mobile phones and PCs.
4 When the channel output connects the battery after the charger powers on, it will start automatically theanti-sparking protection.
5 Intelligent fan control. Sensing internal temperature via the internal temperature sensor, to thereby control the fan
speed.
6 Internal temperature protection. When the internal temperature exceeds the Power Reduce temperature, the output
power is automatically reduced; and the charger will shut down when temperature exceeds the Shut-down
temperature.
7 This charger can save 64 parameters sets and support the data import/export to SD card.
8 A 2.8-inch LCD screen provides rich information including current, voltage, power, capacity, internal resistance,
control status, time-consuming and temperature, etc.
9 Multi-discharge features: self-discharge, regenerative to input discharge, and lithium battery extra expanding
discharge.
10 Supports measurement for internal resistance of battery offline and online. Can measure not only the internal
resistance of the entire battery pack, but also measure the internal resistance of each cell within the lithium battery.
11 The iCharger has protection for reversed polarity (input or output), input voltage/current, battery temperature,
charging capacity, overrun time and maximum power etc.
12 Supports upgrading the hardware program by USB port or SD card. The iCharger also supports the “Logview”
software and can display, plot and analyze the charge and discharge data by it. (See detailed information about
Logview at the following website: http://www.logview.info)

 Appearance Parameters
Net weight:
Dimension:

0.91kg171×118×59 ±0.5mm-5-406DUO V1.2.0

Synchronous Balance Charger/Discharger

 Specifications
Input voltage range:
Maximum input current limit:
Maximum charge/discharge current:
Maximum charge power capacity:
Maximum discharge power capacity:
Maximum regenerative discharge power capacity:
Maximum extra discharge power capacity:
Maximum current drain for balancing:USB charging port:

10.0—30.0VDC<60A, CH1/2<47A
70A@Syn. Mode 40A@Asyn. Mode
1400W (Channel 1000W @input > 23.5V)
140W (Channel 80W)
1400W (Channel 1000W)
2000W (Channel 1000W @25V/40A)
2.4A@Syn. Mode 1.2A@Asyn. Mode
5V/1A（current-limiting protection 1.2A）-6-

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Synchronous Balance Charger/Discharger

Device Introduction
 406DUO Parts & Interface Introduction（1）OUTPUT-1﹣（2）OUTPUT-1﹢（3）TEMP-1（4）BALANCE PORT-1（5）OUTPUT-2﹣（6）OUTPUT-2﹢（7）TEMP-2（8）BALANCE PORT-2（9）STOP/START-1（10）STATUS-1（11）TAB/SYS（12）STOP/START-2（13）KNOB（14）STATUS-2（15）LCD（16）J1,J2 PORT（17）FAN（18）USB POWER（19）USB（20）BUZZER（21）SD CARD SLOT
（22）POWER OUTPUT LINE

 406DUO Buttons Function & Icons Description
Buttons allow quick access to certain features when using 406DUO, familiarity with the icons on the interface will help
you better understand the working status of the charger, as shown in following chart:
Name

Functions & Use

KNOB

Press: confirm
Counterclockwise rotation: up Clockwise rotation: downLong press: pop up manage menu via long press on BATTERYMEMORY SELECTION interface
exit the program after saving via long press on
BATTERY SETUP interface

TAB/SYSLong press: enter SYSTEM MENU via long press on initialinterface, and return to the previous menu via longpress on the rest interface
Click: can act as backspace when editing program name on
MEMORY SETUP, and return to the previous menu via
clicking on the rest interface-7-

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Synchronous Balance Charger/Discharger

STATUS-1

Long press: measure internal resistance of CH-1 via long press on
initial interface, and to pop up the parameters setup
interface via long press when running program
Click: switch to the information display of CH-1 when running
programSTATUS-2

Long press: measure internal resistance of CH-2 via long press on
the initial interface, and to pop up the parameters
setup interface via long press when running program
Click: switch to the information display of CH-2 when running
program

STOP/START-1

Click: click on the initial interface to enter CH-1-BATTERYMEMORY SELECTION, and click again to return theinitial interface
Long press: long press on the initial interface to enter the last
running program of Run Program on CH-1, and longpress again to run the selected program

STOP/START-2

Click: click on the initial interface to enter CH-2-BATTERYMEMORY SELECTION, and click again to return theinitial interface
Long press: long press on the initial interface to enter the last
running program of Run Program on CH-2, and longpress again to run the selected program

STATUS-1+STOP/START -1

Press simultaneously on initial interface to enter CH-1-MONITORSETTINGS on CH-1

STATUS-2+STOP/START -2

Press simultaneously on initial interface to enter CH-2-MONITORSETTINGS on CH-2

STOP/START -1+STOP/START -2

Long press simultaneously on Run Program interface, twochannels will run the same program simultaneously
Fan status: a. Grey shows not runningb. Green shows running (the higher the green shows,the faster the fan runs, and vice versa)
SD card status: a. Grey shows the SD card is not inserted
b. Green shows the SD card has been inserted andcan be used normallyUSB status: a. Grey for no USB connection
b. Green for USB connection-8-

406DUO V1.2.0

Synchronous Balance Charger/Discharger 406DUO Standard Accessories
Balance connector conversion board #1

Power cable #1

600mm
Suit for Align/Dualshy battery etc.
Balance wire for balance board

Power input cable#2

Output cable #2

150mm
Suit for Align/Dualshy battery etc.
CD-ROM

320mm
Banana gold plug power output cable (single
channel)#1

User’s manual & Software 406DUO Optional Accessories
Temperature sensor lead

Dual balance wires for balance board

150mm
350mm
XP2.54 interface temperature sensor lead

7Pin-7Pin dual balance wire

Dual channel output cable

USB data line

350mm
Banana gold plug power output cable (twochannels)

700mm
Standard mini USB data line

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Synchronous Balance Charger/Discharger

The Order of Connection for Charger
 The Power Input Ground Cannot be Connected with the Output Ground
Note: The input of power lead cannot be
connected directly to the output (see left
picture), and the voltage of the input power
supply cannot have large instantaneous
fluctuations, otherwise the charger will bedamaged.

 The Order of Connection
Please be sure to connect the input power first, after the charger starts the output anti-sparking protection (after
electrifying 1 second), and then connect the battery.

 Dual-channel Connection Notes
 Connection for Channel Asynchronous Mode
Channel Asynchronous Mode: i.e. CH-1 and CH-2 work independently.
Go to MEMORY SETUP→ Option→ Channel Mode to select Asynchronous.

Note: In this mode, the two channels must not have any external electrical connection; otherwise it will
damage the charger. You cannot charge with connection as shown in the left picture, the correctconnection as shown in the right picture.

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Synchronous Balance Charger/Discharger
 Connection for Channel Synchronous Mode
Channel Synchronous Mode: i.e. CH-1 & CH-2 are controlled at the same time to charge/discharge one battery pack. Go
to MEMORY SETUP→Option→Channel Mode to select Synchronous.
In this mode, the maximum current can be up to 70A, power capacity is the sum of both channels’ limits.

1
2
3
4
Note: The two channels charge one battery
pack simultaneously must be connected asshown in the left picture and the two channels
must work in synchronous mode, otherwise thecharger will be damaged.

1: The total voltage of dual-channel
2: The total current of dual-channel
3: The total capacity of dual-channel
4: Channel current & voltage difference- 11 -

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Synchronous Balance Charger/Discharger

iCharger Charge/Discharge Setup & Use
406DUO iCharger can charge/discharge LiPo, Lilo, LiFe, NiMH, NiCd,Pb or NiZn batteries, this manual will explain
and introduce in detail the charger’s features, setup and use.

 Power Supply Setup
The charger boots automatically when the power is turned on and the initial interface will display LOGO, charger
relevant information, power source and message etc.

1
2
4
5
6

3

1: Logo3: Firmware version
5: Input power voltage
7: Hint message

2: Model4: Serial number
6: Input power source

7
System will delay 5 seconds after booting, during this period, press TAB / SYS button to change the input source type,while pressing any other buttons to enter the initial interface.

Note: Set type of input power supply in SYSTEM MENU→Charger Setup→Power Supply; see details on
Page26 406DUO Parameters Setup.
After selecting the input power supply, confirm and enter the initial interface.
1: CH-1Channel Information Display
2: CH-2Channel Information Display
3: Status Display
1

2

3
Note: The specific display of each region can refer to the introduction on Page14 & Page15 Program
Running Status & Error Messages.

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Synchronous Balance Charger/Discharger

 Program Add & Manage
Click STOP/START-x button on the initial interface to pop up the BATTERY MEMORY SELECT window.
406DUO has 7 built-in programs before it enters to the market (shown in the following picture), which cannot be deleted
and are limited for editing. The built-in programs are underline to distinguish them from the customized programs set by
the user.

Click "" (or long press KNOB) to pop up the MANAGE after exiting focus via pressing TAB/SYS, and click"" to enter MEMORY SETUP to edit the program, or click "" to add new program andenter its editing interface at the same time.

Note: If the program selected is a built-in program, "Copy From…" and "Delete" options are shown ingrey as inactive status, and unable to be set.

 Run Program for Charger
After selecting program on BATTERY MEMORY SELECTION, click to enter Run Program interface (long press
STOP/START-x button on the initial interface will enter Run Program from the last running program), as below:

12

1: Run Program Selection
2: Common Parameters Setup
3. Auto- save Hint

3

Note: 1. The revised common parameters of built-in program will be saved by default automaticallyafter running, while the program customized by the user can be set to be saved or not in
MEMORY SETUP→MEMORY OPTION→Auto save before the program runs.
2. After setting the Cap. value, when the Current value exceeds the certain value, the system will
be a warning display and alarm voice(shown in the following picture). The Current value ofeach battery type is: LiXX battery :> 3C, NiMH/NiCd battery :> 2C, Pb battery :> 0.3C, NiZnbattery>2C.

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Synchronous Balance Charger/Discharger
After selecting the program to run, click confirmation to pop up RUN PROGRAM window, as below:

Click Yes to run the program, click No to cancel.

 Program Running Status
1
2
3
4
5

7
8
9
10

6

11 12

13

15

14

16 1718

1: Running program name 2: Battery type
3: Running channel status
4: Channel control status/external temperature
5: Running program time
6: Multipage information
7: Charging voltage
8: Charging current
9: Charging capacity
10: Balance strength
11: Input power source type 12: Input voltage
13: Input current
14: Input capacity
15: Internal temperature
16: Fan status
17: SD card status
18: USB status
See details on Page40 Status Indication of Running Channel& Status Indication of Channel Control

Press STATUS-x button when running program to switch the multipage information displays, as below:
Cells voltage information
IR information
1
1: Cells voltage
1: Cells internal resistance1
2: Cells voltage sum
2: Pack internal resistance
3: Maximum cells voltage
3: Line resistance232
3
difference
Information page1

2 1: Power

3

4

5

6

Cycle charge information
1: Cycle charge status

1

2: End voltage
3:Lowest input voltage
4: Safety time
5: Temp. cutoff
6: End charge capacity

Note: Different types of batteries and programs have different multipage information displays, seedetails below:
Types of battery

Cells

IR

Info

Cycle

LiPo/LiIo/LiFe

√

√

√

√

NiMH/NiCd

×

×

√

√

Pb

×

×

√

√

NiZn

√

√

√

√

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Synchronous Balance Charger/Discharger
Press STATUS-x button for 2 seconds when running program to pop up MODIFY interface, to modify the current anddischarge voltage parameters online, as below:

Press STOP/START-x button when running program to stop running, and press STOP/START-x button again to return tothe initial interface.

 Error Messages
During the running program, if the system detects an error, it will stop running the program on the channel immediately
and pop up the red dialog box and the buzzer alarms, as below:
1: Error number
2: Error message
See all details on Page41 Error Messages.

12 Program Edit
After adding new programs or editing saved programs, the system will enter MEMORY SETUP interface. Users can set
or modify the program on this interface.
1

5

2
3
4

1: Program name
3: Number of cells
5: Available program

2: Battery type
4: Battery capacity

Note: 1. When editing the program name, the character can be selected by turning the Knob, andclicking the Knob to confirm the selected character. Clicking TAB/SYS button will delete thecharacter. Double-click Knob after editing program name. If the program name is empty, thesystem will name it automatically.
2. If the Editing program is the built-in program, the program name and battery type etc.
parameters cannot be changed.
After setting the basic parameters of a battery, click "" to enter MEMORY OPTION interface, after setting click“” to return to MEMORY SETUP, and click “” to save.

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Synchronous Balance Charger/Discharger
Channel Mode: Asynchronous (default);
Synchronous
Run Counter: 0-999; default: 0
Log Interval: 0.5-60Sec; default: 1Sec

Note: 1. Channel Mode has asynchronous, synchronous available, see more details on Page10
Dual-channel Connection Notes.
2. If select synchronous mode, the maximum charge/discharge current setting will change from
40A to 70A.
3. If tick Auto saves before the program runs, the parameters set on the Run program will besaved automatically, and the Run Program will display “Auto save” ( shown in the following
left picture), otherwise it will display “Don’t save!” (shown in the following right picture); forthe built-in program, the Auto save before the program runs option is ticked by default.
4. If tick Log save to SD card, the log files will be saved to SD card when running program, andvice versa.

 LiPo/LiIo/LiFe Battery Charge/Discharge Setup
After adding a program, it will switch to LiPo/LiIo/LiFe battery in Type option on the MEMORY SETUP interface, andset the number of Cells and Capacity, if there is no setting for the number of Cells, the charger will set Auto by default.
After editing all parameters for the program, click "" to save and return to the previous interface.
Cells: Auto (default), 1-6S

As shown in the above picture, the program of LiPo, LiIo, LiFe battery has: Charge, Storage, Discharge, Cycle andBalance Only.


LiPo/LiIo/LiFe Battery Charge Setup

Select Program→Charge to enter Charge setup interface.
Chg Current: 0.05A-40A; default: 2A
Chg Mode: Slow Balance, Normal Balance (default),
Fast Balance, User Balance, Not Balance
Chg End Current: 1%-50%; default: 10%
Chg Cell Volt: 3.85V/Cell-4.35V/Cell;
Default: 4.2V/Cell- 16 -

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Synchronous Balance Charger/Discharger
Note:1. When the value of charge cells voltage exceeds the recommended value (LiPo 4.2V, LiIo 4.1V,
LiFe 3.6V), the charger will display a warning and alarm. As long as the user changes the values,
the battery types and cells voltage value on the main charging interface will be displayedalternately.
2.For the setting process for all program in this manual, tick Show to display the setting programon MEMORY SETUP (shown in the following picture), and vice versa; the built-in program isticked by default.

LiPo/LiIo/LiFe Battery Not Balance Charge Setup

When switch to Not Balance on Chg Mode, Only Chg End Current is available for charging end condition, and“” behind Chg Mod and Chg End Current are inactive.

Note: The charger first charges with constant current (CC) according to the user setting, then turns toconstant voltage (CV) when the charging voltage reaches the peak point. In the CV phase thecurrent gradually falls, and the charger will terminate charging when the current falls below thepercentage of the configured charge current.
For example: the default value of Chg Current is 2A, and the default value of Chg End Current is
10%
Chg End Current=2A*10%=0.2A
Therefore it stops charging when the charging current reduces to 0.2A.


LiPo/LiIo/LiFe Battery Balance Charge Setup

Switch to Slow Balance, Normal Balance, Fast Balance or User Balance on Chg Mode as the balance charge mode, and"" button will be available, click it to enter Balance mode setup interface.
Balance Start : CV,CV-0.1V—1V,Alway
Default: CV-0.2
If the balance charge voltage is 4.2V, Balance Start
set to CV-0.2V; therefore the charger will start tobalance the battery cells when the voltage reaches to
4.2V-0.2V=4V
Note: On Balance mode, the charger will monitor the voltage of individual cells to control it within the
Chg Cell Volt and equalize the voltage in all cells, to avoid some cell voltage over-charged or not
full. When selecting Balance mode, the balance port of charger or balance board must beconnected with battery except for connecting 1S battery.

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When switch to User Balance mode on Chg Mode; the Balance Diff, Balance Set Point, Balance Over Charge andBalance Done Delay are available, after setting, click"" to return to the previous interface.
Balance Diff: 1mV-10mV; default:5mVBalance Set Point: 1mV-50mV; default:5mVBalance Over Charge: 0mV-50mV; default:0mV
Balance Done Delay: 0Min-20Min; default:1Min

Note: If Balance Diff value is lower, the voltage difference between individual cells will be lower andthe balancing will take more time before the program ends. If Balance Set Point value is lower,
the battery will be closer to the setting cut-off voltage and the time taken will be longer before
the program ends. Balance Over Charge, the maximum overcharge compensation voltage acts as
accelerated charge, and the larger the value, the more obvious the accelerated charge.
For example: Charge Lipo with Vstd, set Balance Over charge to Vboc, the cell’s internal
Resistance detected is Ri, when the charge current is Ia, the actual CV value of cells is Va
IF Ri*Ia > Vboc THEN
Va = Vstd + Vboc
ELSE
Va = Vstd+Ri*Ia
Please set this parameter after understanding fully, or keep the default value at 0.
The value of Balance Done Delay is larger; the battery is closer to the setting cut-off voltage
when the program ends.
Switch to Balance charge mode on Chg Mode, and click “
BALANCE End SETUP interface for setting.

1: The charger will stop balance charge if detects the
Balance condition is met, and the End Current
condition is invalid
2: The charger will stop balance charge if detects the End
Current condition is met, and the Balance condition isinvalid
3: The charger will stop balance charge if detects the End
Current condition or the Balance condition is met
4: The charger will stop balance charge if detects the End
Current condition and the Balance condition are met

1
2
3
4



” behind Chg End Current to enter CHARGE

LiPo/LiIo/LiFe Battery Charge Advanced Setup

Click "
interface.

" to enter LiPo/LiIo/LiFe ADVANCED SETUP, after setting, click""to return to the previous

Restore Lowest Voltage:
0.5V/Cell-2.5V/Cell; Default: 1V/Cell
Restore Charge Time:
1Min-5Min; default: 3Min
Restore Charge Current:
0.02A-0.5A; default: 0.1A

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Synchronous Balance Charger/Discharger
Note: 1. When charging the over-discharged battery, the charger will detect if the cell voltage is larger
than the restore voltage, if larger, it will pre-charge the battery with restore current, if within
the setting restore time, the cell voltage rises to the normal value then it will turn to thecharging program; otherwise it will stop running.
2. After charging, the battery may not be completely charged; tick Keep charging after the done
to charge the battery with smaller current when charging ends.


LiPo/LiIo/LiFe Battery Charge Safety Setup

Click "" to enter CHARGE SAFETY SETUP, after setting click"" to return to the previous interface.

Cut-Temp: 20℃-80℃; default: 45℃
Max Capacity: 50%-200%; default: 120%
Safety Timer: 1Min-9999Min; default: off

Note: Cut-Temp. is the maximum safety temperature of the battery. If the temperature sensor detects
the set value, the program will stop running in order to protect the battery from being damagedby high temperature.


LiPo/LiIo/LiFe Battery Storage Setup

This mode is for storing LiPo/LiIo/LiFe battery that will not to be used for an extended period. The charger determines
whether to charge or discharge the battery based on the configured target voltage. If the battery voltage exceeds thetarget storage voltage it will start to discharge, while lower than the target storage voltage it will start to charge.
Select Program→Storage to enter Storage setup interface.
Storage Cell Voltage:3.7V/Cell-3.9V/Cell;
Default: 3.85V/Cell
Storage Compensation: 0V/Cell-0.2V/Cell;
Default: 0.01V/Cell

Note: 1. Accelerated storage: accelerated storage via internal resistance correction. Tick Accelerated
storage to activate accelerated storage.
2. Storage Compensation is the compensation for the battery voltage fallback: for storage charge,
the actual storage voltage=Storage Cell Voltage + Storage Compensation; for storage discharge,
the actual storage voltage=Storage Cell Voltage - Storage Compensation.


LiPo/LiIo/LiFe Battery Discharge Setup

Select Program→Discharge to enter Discharge setup interface.
Discharge Current: 0.05A-40A; default: 2A
Discharge Voltage: 3V/Cell-4.1V/Cell;
Default: 3.5V/Cell
End Current: 1%-100%; default: 50%
Regenerative Mode: OFF (default), To input,
To channel- 19 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger
Note: 1. The charger first discharges with constant current (CC) according to the user setting then turns
to constant voltage (CV) when it reaches the discharge voltage. In the CV phase the current
gradually falls, and the charger will terminate discharging when the current falls below thepercentage of the configured discharge current.
2. Regenerative mode has three available settings: OFF, To input, To channel, see more details on
Page38 Important Notes.


To Channel Setup

When selecting to To channel on Regenerative Mode, “"button changes from inactive to its operational status,and click to enter To channel setup interface, after setting click "" to return to the previous interface.
Channel Join:
Resistance or bulbs (default)
Charging battery
Voltage Limit: 0.1V-40V; default: 12V
Current Limit: 0.05A-40A; default: 1A

Note: 1. For example, a 12V/60W bulb as the load of To Channel, it should set Voltage Limit =12V；
Current Limit=60/12=5A.
2. When the battery as the load of To Channel, Voltage Limit and Current Limit are not settable，
see details on Page38 Channel Regenerative Mode .
LiPo/LiIo/LiFe Battery Discharge Advanced Setup

Click "" to enter LiPo/LiIo/LiFe DISCHARGE ADVANCED SETUP interface, after setting click"return to the previous interface.

" toNote: 1. Tick Extra Discharge Enable to activate discharge enable, see more details on Page39 Lithium
Battery Extra Discharge Mode.
2. Tick Balance Enable to activate balance discharge; when discharge enters the CV phase, it
starts to balance the cell voltages.


LiPo/LiIo/LiFe Battery Discharge Safety Setup.

Click "" to enter DISCHARGE SAFETY SETUP, after setting click"" to return to the previous interface.

Cut-Temp: 20℃-80℃; default: 45℃
Max Capacity: 50%-200%; default: 90%
Safety Timer: 1Min-9999Min; default: off- 20 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger
LiPo/LiIo/LiFe Battery Cycle Setup

Select Program→Cycle to enter Cycle setup interface, after setting click"" to return to the previous interface.

Cycle Mode: CHG→DCHG(default),DCHG→CHG，CHG→DCHG CHG, DCHG→CHG DCHG,
CHG→DCHG STO, DCHG→CHG STO
Cycle Count: 1-99; default: 3
Delay Time: 0Min-9999Min; default: 3Min


LiPo/LiIo/LiFe Battery Only Balance Feature

Select Program→Balance Only to enter Balance Only setup interface, after setting click"interface.

" to return to the previous

Note: Balance Only is the program only to equalize the individual cells through balance port to reducethe voltage difference.

 NiMH/NiCd Battery Charge/Discharge Setup
After adding a program, it will switch to NiMH/NiCd battery in Type option on the MEMORY SETUP interface. Set the
Capacity, the number of Cells for NiMH/NiCd battery cannot be set, and the charger sets Auto by default, after editing
all parameters for the program, click"" to save and return to the previous interface.

As shown in above picture, the program of NiMH, NiCd has the following modes: Charge, Discharge and Cycle.


NiMH/NiCd Battery Charge Setup

Select Program→Charge to enter Charge setup interface.
Chg Current: 0.05A-40A; default: 2A
Chg Mode: Normal (default), Reflex

Note: Charge Mode has Normal and Reflex modes available; use reflex mode to charge the battery, it
can reduce the heat in the battery; please see charging principle on Page38 Important Notes.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger


NiMH/NiCd Battery Charge Advanced Setup

Click "" to enter NiMH/NiCd CHARGE OPTION SETUP interface, after setting click "previous interface.

" to return to theSensitivity: 1mV-20mV; default: 3mV
Delay time: 0Min-20Min; default: 3Min

Note: For the over-discharged NiMH/NiCd battery, the voltage may be close to 0V, tick Allow 0V
Charging to allow charge with 0V.
Tick Trickle Enable→Enable to activate trickle charge and set the parameters, after setting click"previous interface.

" to return to the

Trickle current: 0.02A-1A; default: 0.05A
Trickle timeout: 1Min-999Min; default: 5Min

Note: Tick Enable to activate trickle charge.
Trickle charge means when the standard charge is completed, the charger will charge thebattery with the setting trickle current until the setting trickle timeout, then to stop the
charging process.


NiMH/NiCd Battery Charge Safety Setup

Click "" to enter CHARGE SAFETY SETU interface, see details about setting on Page19 LiPo/LiIo/LiFe Battery
Charge Safety Setup.


NiMH/NiCd Battery Discharge Setup

Select Program→Discharge to enter Discharge setup interface.
Discharge Current: 0.05A-40A; default: 2A
Discharge Voltage: 0.1V-35V; default: 0.1V
End Current: 1%-100%; default: 50%
Regenerative Mode: OFF (default), To input, To channel

Note: 1. Regenerative mode has three modes available: OFF, To input, To channel. See more details on
Page38 Important Notes.
2.To channel Setup please see Page20 To channel Setup.


NiMH/NiCd Battery Discharge Safety Setup

Click "" to enter DISCHARGE SAFETY SETUP interface, see details about setting on Page20 LiPo/LiIo/LiFe
Battery Discharge Safety Setup.

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Synchronous Balance Charger/Discharger


NiMH/NiCd Battery Cycle Setup

Select Program→Cycle to enter Cycle setup interface, see details about setting on Page21 LiPo/LiIo/LiFe Battery Cycle
Setup.

 Pb Battery Charge/Discharge Setup
After adding program, it will switch to Pb battery in Type option on the MEMORY SETUP interface. Set the number ofCells and Capacity, after editing all parameters for program, click""to save and return to the previous interface.

Cells: 1-12S; default: 6S

As shown in above picture, the program of Pb battery has the following modes: Charge, Discharge and Cycle.


Pb Battery Charge Setup

Select Program→Charge to enter Charge setup interface.
Chg Current: 0.05A-40A; default: 2A
Chg Mode: Normal (default), Reflex
Chg End Current: 1%-50%; default: 10%
Chg Cell Volt: 2V/Cell-2.6V/Cell; Default: 2.4V/Cell

Note: 1. The charger first charges with constant current (CC) according to the user setting then turns toconstant voltage (CV) when the charging voltage reaches the peak point. In the CV phase thecurrent gradually falls, and the charger will terminate charging when the current falls below
the percentage of the configured charge current.
2. Charge mode has Normal, Reflex two modes available, about the Reflex mode (Reflex) please
see Page38 Important Notes.


Pb Battery Charge Advanced Setup

Click "" to enter PB ADVANCED SETUP interface,
Restore Lowest Voltage:
0.5V/Cell-2.5V/Cell; default: 1V/Cell
Restore Charge Time: 1Min-5Min; default: 3Min
Restore Charge Current: 0.02A-0.5A; default: 0.1A

Note: When charging the over-discharged battery, the charger will detect if the cell voltage is larger
than the restore voltage, if larger, it will pre-charge the battery with restore current, if within thesetting restore time, the cell voltage rises to the normal value then it will turn to the charging
program; otherwise it will stop running.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger


Pb Battery Charge Safety Setup

Click "" to enter CHARGE SAFETY SETUP interface, see details about setting on Page19 LiPo/LiIo/LiFe Battery
Charge Safety Setup.


Pb Battery Discharge Setup

Select Program→Discharge to enter Discharge setup interface, see details about setting on Page20 LiPo/LiIo/LiFe
Battery Discharge Setup.


Pb Battery Cycle Setup

Select Program→Cycle to enter Cycle setup interface, see details about setting on Page21 LiPo/LiIo/LiFe Battery Cycle
Setup.

 NiZn Battery Charge/Discharge Setup
After adding a program, it will switch to NiZn battery in Type option on the MEMORY SETUP interface. Set the
Capacity, the number of Cells for NiZn battery cannot be set, and the charger sets Auto by default, after editing allparameters for the program, click"" to save and return to the previous interface.
Cells: 1-6S; default: AutoAs shown in above picture, the program of NiZn has the following modes: Charge, Discharge and Cycle.


NiZn Battery Charge Setup

Select Program→Charge to enter Charge setup interface.
Chg Current: 0.05A-40A; default: 2A
Chg Mode: Slow Balance，Fast Balance，Normal Balance，User Balance,
Not Balance (default)
Chg End Current
1%-50%; default: 10%
Chg Cell Volt
1.2V/Cell-2V/Cell; default: 1.9V/Cell
Note: When the battery cell charging voltage setting exceeds the recommended value (1.9V), the charger will
display a warning and alarm. As long as the user changes the value, the battery type and cell voltage values
on the main interface of charger will display alternately.
 NiZn Battery Not Balance Charger Setup
Switch to Not Balance mode on Chg Mode interface, see details about setting on Page17 LiPo/LiIo/LiFe Battery Not
Balance Charge Setup.
 NiZn Battery Balance Charge Setup
Switch to Slow Balance，Normal Balance，Fast Balance，User Balance on Chg Mode interface, see details about setting
on Page17 LiPo/LiIo/LiFe Battery Balance Charge Setup.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger


NiZn Battery Charge Advanced Setup

Click "" to enter NIZN ADVANCED SETUP interface, see details about setting on Page19 LiPo/LiIo/LiFe
Battery Charge Advanced Setup.


NiZn Battery Charge Safety Setup

Click "" to enter CHARGE SAFETY SETUP interface, see details about setting on Page19 LiPo/LiIo/LiFe Battery
Charge Safety Setup.


NiZn Battery Discharge Setup

Select Program→Discharge to enter Discharge setup interface
Discharge Current: 0.05A-40A；default: 2A
Discharge Voltage: 0.9V/Cell-1.6V/Cell;default: 1.1V/Cell
End Current: 1%-100%; default: 50%
Regenerative Mode:OFF (default),To input, To channel
Note: 1.The charger first discharges with constant current (CC) according to the user setting then turns
to constant voltage (CV) when it reaches the discharge voltage. In the CV phase the current
gradually falls, and the charger will terminate discharging when the current falls below thepercentage of the configured discharge current.
2. Regenerative mode has three available settings: OFF, To input, To channel, see more details on
Page38 Important Notes.
 To Channel Setup
Switch to To channel mode on Regenerative Mode interface, click“”to enter To channel setup interface, seedetails about setting on Page20 To Channel Setup.
 NiZn Battery Discharge Advanced Setup
Click “” to enter NiZn DISCHARGE ADVANCED SETUP interface, see details about setting on Page20
LiPo/LiIo/LiFe Battery Discharge Advanced Setup.
 NiZn Battery Discharge Safety Setup
Click“”to enter DISCHARGE SAFETY SETUP interface, see details about setting on Page20 LiPo/LiIo/LiFe
Battery Discharge Safety Setup.


NiZn Battery Cycle Setup

Select Program→ Cycle to enter Cycle setup interface, see details about setting on Page21 LiPo/LiIo/LiFe Battery Cycle
Setup.

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Synchronous Balance Charger/Discharger

406DUO Parameters Setup 406DUO Parameters Setup
Press TAB/SYS button for 2 seconds on the initial interface to enter the SYSTEM MENU interface, setting and testing of
the system parameters, storage and servo can be completed on this interface.
1
2
3
4
5
6
7
8
9

11
12
13
14

10

1: Charger Setup Menu
2: Temp. & Fans Setup
3: Beep Tone & Knob Setup
4: LCD Setup
5: Output Power Setup
6: Power Supply Setup
7: Save & Load Configuration Setup
8: Calibration Setup
9: Language Setup
10: Calibration
11: Extra- Function
12: Log Files Manage
13: Servo Test
14: Pulse Test

 Charger Setup
After setting all parameters, click “” to save and return to the previous interface.

Temp. & Fans Setup

Select SYSTEM MENU→Charger Setup→Temperature&Fans to enter the setup interface, after setting click “
save and return to the previous interface.
1: Temperature:
Unit: Celsius (default), Fahrenheit
Shut Down: 60℃-75℃;default:75℃
Power Reduce: 5℃-20℃;default:10℃
2: Cooling Fans:
ON Temperature:
30℃-50℃;default:40℃
OFF Delay Time:
0Min-10Min; default: 2Min

”toNote: When the charger’s internal temperature reaches the ON Temperature, the fan will start
automatically to dissipate heat, and adjust speed automatically depends on the temperature
increasing or decreasing. When the temperature exceeds the Power Reduce temperature, thecharger will stop increasing (temp. shown in orange) by reducing the highest power limit. When thetemperature reaches Shut Down temperature, the charger will shut down. [When temp. >Shut
Down-3, the temperature is shown flashing in red]. When the temperature is lower to the ON
Temperature, the fan will keep running within the setting time of OFF Delay Time.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger


Beep Tone Setup

Select SYSTEM MENU→Charger Setup→Beep Tone to enter the setup interface.
1
2
3
4



1: Key Tone
2: Hint Tone
3: Alarm Tone
4: Done Beeps
5: Volume adjustment display
Beep 5times (default)
5
Beep 30second
7
Beep 3minutes
Beep always
6: Program Done Beep Tones Selection
7: Reduced sensitivity knob
Note: Tick the appropriate tone, and then go to Volume adjustment bar to adjust the volume; If the
beep tone is not ticked the corresponding volume adjustment shows inactive; Done Beeps have
many styles available, as shown in sequence number 5 above.
6

LCD Setup

Select SYSTEM MENU→Charger Setup→LCD Screen to enter the setup interface.
1: Brightness adjustment
2: Contrast adjustment

1

2



Output Power Setup

Select SYSTEM MENU→Charger Setup→Output Power to enter the setup interface.
1

2

3

1/2: CH-1/CH-2 Output Power Setup
Charge: Maximum Power Limit for charge
5W-1000W; default: 1000W
Discharge: Maximum Power Limit for discharge
5W-80W; default: 80W
3: CH-1/CH-2 Channel Partiality Selection
Same (default), CH-1, CH-2

Note: The maximum power limit for regenerative discharge is equal to the maximum power limit for
charge.
When the input or output power of charger is limited, it will trigger the CH-1/CH-2 Channel
Partiality.
When Partiality switches to Same, charger assigns the output power equally to two channels,
switch to CH-1 or CH-2, the charger will give priority to the selected channel output, while theoutput power of other channel may be reduced to 50W (discharge for 5W).

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406DUO V1.2.0

Synchronous Balance Charger/DischargerPower Supply Setup

Select SYSTEM MENU→Charger Setup→Power Supply to enter the setup interface.
1: DC Power
2: Battery Power1
2

After selecting input source, click the "set the parameters, after setting click “" followed by the option, enters the relevant power supply setting to”to save and return to the previous interface.
Low Voltage Limit: 10-29; default: 10V
Current Limit: 1A-60A; default: 60A

Low Voltage Limit: 10-29; default: 10V
Current Limit: 1A-60A; default: 60A
Regen.Voltage Limit: 10-29; default: 14.5V
Regen. Current Limit: 1A-60A; default: 10A
Regen. Capacity Limit: Ignore (default)，
100mAh-999900mAh
After ticking Regenerative enable, if run theregenerative discharge to input, the electricaldischarged will be re-charged as the battery of input
power.
Save & Load Configuration Setup

Select Save & Load Config on SYSTEM MENU and enter the setup interface.
1: Save Configuration to SD card
2: Load Configuration from SD card
3: Load Defaults Configuration

1
2
3

Note: 1. Users can save configuration to SD card and re-load via the SD card if needed.
2. After loading the configuration files, in addition to Calibration Select, it will cover all- 28 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger
settings within the charger.
Communication Settings

Select SYSTEM MENU→ Charger Setup→ Communication to enter the setup interface. See detailed information aboutcommunication port protocol in iCharger MODBUS Protocol.
Go to the website http://www.jun-si.com/UploadFiles/iCharger_MODBUS_Protocol.pdf to download.

Select Serial Port as the communication way to activate, as below:



Language Setup

Select SYSTEM MENU→ Charger Setup→ Language to enter the setup interface, there is English or German for theuser to choose.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger
Calibration

Select SYSTEM MENU→Charger Setup→Calibration to enter the setup interface. User Calibration may result in large
data deviation, affecting normal use; so User Calibration is not suggested.

If the user select User Calibration, the User Calibration option changes to active status; then select channel to enter theinterface to calibrate.

Note: User Calibration has CH-X Channel Calibration and Other Variables Calibration two options, theuser can calibrate charger for one channel alternatively. If the user selects User Calibration, thecorresponding message will appear in the interface after booting the charger, as shown in theright picture above.
Select CH-1/2 Channel Calibration to enter the channel calibration interface, Select Other Variables Calibration to enter
the other variable calibration; after Calibration, click "to load default value.

" to save and return to the previous interface; click "Channel Calibration

Other Variables Calibration- 30 -"

406DUO V1.2.0

Synchronous Balance Charger/Discharger

Extra Function

Log Files Manage

Select SYSTEM MENU→Extra Function→LOG FILES to enter the manage interface.

First select and click the .TXT files when managing log files and the system will pop up the LOG FILES OP dialog box.
Log Files Manage Dialog
Transmission: transmission to PC
Delete: delete files
Delete All: delete all files
The charger must be connected with computer via
USB when select Transmission and the client
software must have identified to the charger.

Select Delete to pop up the LOG FILE DELETE dialog box, Select Yes to delete this file, select No to cancel. And selectDelete All to delete all.



Servo Test

Select SYSTEM MENU→Extra Function→SERVO TEST to enter servo test interface; insert Servo into J1 or J2 port totest (only J1 port supports Speed Test, J2 can also be used as an external power source).
Type: Analog servo (1500us/50Hz)
Digital servo (1500us/333Hz)
Digital servo (760us/560Hz)
User: Pulse Center: 700us-1600us
Frame Rate: 40Hz-700Hz
45°Pulse Traveling:100us-1000us- 31 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger
J2 can be used as an external power source: If J1(5V/1A) cannot provide the voltage needed for the servo, pleaseconnect through J2 with external power source.
25V

Select the test mode and go to the following corresponding interface.

Liner Test: When turning the knob,
the pointer deflects with the setting
value of Step, and the servo responds
accordingly.

Fixed Point Test: When turning theknob, the pointer deflects among
each setting value and the servo
responds accordingly.

Speed Test: Click Test to read the test
curves and test results.
Note: Current Sample, is the samplingvalue the AD for servo current, there
are 300 sampling point in total.
300 * sampling rate = the entire
sampling time, which must be larger
than the servo speed, if not, it will failto test the speed.

Auto CW/CCW Test: Click Test
button then the pointer deflects thesetting times at a set rate back andforth among each setting values,
and the servo responds accordingly.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger


Pulse Measurement

Select SYSTEM MENU→Extra Function→Pulse Test to enter the pulse test interface, only J2 port supports the input
signal of Pulse Measurement.

 USB & SD Card Use
406DUO is the HID device of USB, supported by windows system directly, dispense with installing additional drivers.
The USB icon will light up on the lower right corner of the screen when the 406DUO connects with computer normally.
The SD icon will light up on the lower right corner of the screen when the SD card is inserted. If 406DUO connects with
the USB without running a program, the new added U disk can be found on the "My Computer” of the PC, and canoperate the file. Log files are stored in the X: \ Junsi \ iC406DUO \Log folder and config. files are stored in the
X:\Junsi\iC406DUO\System folder.
Note: 1. The file system of SD card must be FAT or FAT32.
2. Data in SD card needs to be backed up in case it is lost.

 Warranty & Service
 The product from the date of purchase enjoys free repair service within one year under normal conditions of use.
 Over the warranty, if replacement parts are needed the appropriate charge for components and repair will apply.
 During the warranty period, any of the following circumstances will not enjoy free repairs:
1) Failure to use in accordance with the requirements of the user manual.
2) Failure or damage caused by the unauthorized user dismantling, appending or modifying the charger.
3) Failure or damage due to natural disasters, bruises, collisions and incorrect supply voltages.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger

406DUO Firmware Upgrades Firmware Upgrades via USB Port
① Go to the website http://www.jun-si.com/UploadFiles/Upgrader.rar to download above VER2.1 version upgrader zip
file "", and extract to any disk on the PC.

② Open the extract directory X:\upgrader\upgrader.exe, double click""to run the upgrader and enterprogram interface.

③ Click ""to open the firmware file. If there is no firmware file on the PC, click "window, and find the corresponding device firmware of 406DUO, click"" to open the download" to download the firmware file to thePC.

④ Connect 406DUO charger to the PC via USB (windows system directly supports the device, dispensing withinstalling additional drivers). When the device information appears in Device List column, this shows the upgrade tool
has identified the device.

- 34 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger⑤ Click the iron "" on the lower right corner, then the upgrade progress bar will appear on the lower left

corner, a tone sounds for upgrade completion when the upgrade progress bar has completed.

Note: Upgrade failed in the case of not power outages, click "" to upgrade again; if the charger
fails to start normally, press knob, STATUS-2 and STOP/START-2 buttons at the same time and electrify, it
will enter the mandatory upgrade mode, then repeat the above steps to upgrade again.

 Firmware Upgrades via SD Card
i
ii
iii
iv

Create a new directory in the available SD card: X:\Junsi\Upgrade ;Rename the firmware file to 406DUO.BIN, and copied to the new directory;
Insert the SD card into the charger, and press the Knob, STATUS-2, STOP/START-2 at the same time and electrify,
the charger will automatically upgrade the firmware, which takes about 20 seconds.
After the upgrading is complete, the charger will reboot.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger

Use Logview for 406DUO
First, gratitude to the development team of Logview, more details please see http://www.logview.info.

 Communication Steps
 To install the Logview software, start the procedure of X:\ logview \ LogViewInstaller.exe (here X is the drive
letter designator for the CD-ROM drive).
 Connect 406DUO with PC via USB port (make sure USB driver has been installed) Start LogView
1) Please choose language first;- 36 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger
2) Choose Device →Choose device and port;

3) Choose Junsi iCharger406DUO in the following options of Device, and then choose the correctcommunication Port;

4) Start iCharger charge/discharge mode, then click Start recording to record data. See other functions of
this software in "Help" of LogView.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger

Important Notes
 The Charging Principle for Reflex Charge Mode
Note: Reflex charge mode only supports NiMH andPb battery. It does not support lithium battery.
Using reflex charge mode to charge battery can
reduce effectively the heating of the battery. Go to the
MEMORY SETUP → Charge → Chg Mode to selectReflex mode.

 Power Regenerative Mode
Note: Power Regenerative Mode: which is when the
power supply for the charger acts as "battery power",
the charger will regenerative charge for "battery
power" during the process to discharge the battery.
Go to MEMORYSETUP→Discharge→Regenerative-Mode to select To input mode.

 Channel Regenerative Mode
Channel Regenerative Mode is the feature for discharging from one channel to another channel, which supports resistor
discharge, bulbs discharge, and charging battery.

 Resistance or Bulbs
1: Regenerative power
2: Regenerative voltage limit
3: Regenerative current limit
1
2
3
Resistance or bulbs as the load:
1. Connect the resistance or bulbs to any channel ofthe charger;
2. In another channel of the charger, MEMORYSETUP→ Discharge→ Regenerative Mode→ To
channel, to select Resistance or bulbs，then connect
the battery for discharging to this channel, and startthe discharge program to discharge the battery.
Press STOP/START button to end the program
during the period.

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406DUO V1.2.0

Synchronous Balance Charger/Discharger
 Charging Battery
Battery as the load:
1. In any channel of the charger, MEMORYSETUP→ Discharge→ Regenerative Mode→ To
channel, to select Charging battery; then connect thebattery for discharging to this channel, and start thedischarge program， and this channel will be indischarging stand by status;
2. Connect the battery as the load to another channelof the charger, and start the charge program; thedischarging channel is activated accordingly;
3. Press STOP/START button of any channel during
the program running process to end the runningstatus.

 Lithium Battery Extra Discharge Mode
You can expand the iCharger’s discharge power capacity by connecting the external capacity resistance. You should pay
special attention when expanding the discharge circuit. The balance port must be connected to the battery and the
expanding capacity resistance R should be connected in series to the positive connection. (See the following diagram)
OutputiCharger+R- Lixx Batt.
+

Pack

Bal. port

In this mode, the lithium battery discharges through the iCharger and R, P = Pi + Pr, (Pi is the charger’s wasted power
capacity; Pr is wasted power capacity by resistance). Pi is limited by the set charger’s maximum discharge power
capacity.
External capacity resistance’s setting:
R = Vbat / Iset;
P = Vbat * Iset;
R: The value of the external capacity resistance
P: Rating capacity of the external capacity resistance
Iset: Discharge current
Vbat: Battery voltage
For example: discharge a pack of 20V lithium battery at 7A
R = 20V / 7A = 2.85Ω
P = 20V X 7A = 140W

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406DUO V1.2.0

Synchronous Balance Charger/Discharger

Appendix

Status Indication of Running Channel
StatusStatus Indication

StatusStatus indication
Trickle charging status keeps a small

No display

No program, can select program to run

TRICKcurrent for a while after finishingcharging NiCd or NiMH

STOPS

Stop status, press “stop” button to stop
the running program

MONITO

Monitor status, only monitors the data
Float charge, supports Pb battery

START

Start the program

FLOAT

CHECK

Check status before running program

SYNCH.

Synchronous status, this channel runs
with another channel synchronously
Load status, this channel works on the

CHARGE

Charge status

LOAD

load

controlstatusofChannelregenerative
DISCHG
PRE_C
KEEP
BAL

Discharge status
Pre-charge, program will pre-charge
when the cell voltage is too low
Keep charging status, keep charging fora while after setting pre-charge
Independent balance status. Only forbalancing, not charging the Li-battery,

WAIT

Waiting status

CY_DE

Cycle delay status

OVER!

Over status

ERROR

Error status

 Status Indication of Channel Control
StatusStatus Indication

StatusStatus Indication

O.CV

Constant voltage status of output
voltage

I.CC

Constant current status of input
current

B.CV

Constant voltage status of Li-battery
cells voltage

I.CP

Constant status of input power

O.CC

Constant current status of output
current

O.C0

0 current regulation status

C.CP

Constant status of output power
capacityO.CP

Total power regulation status

C.TP

Temperature power reduce status

C.BL

Channel imbalance regulation status

I.CV

Constant status of input voltage

O.PC

Channel power containment
regulation status- 40 -

406DUO V1.2.0

Synchronous Balance Charger/Discharger

 Error Messages
Error NO.

Error Messages

Error Description

02XX"Input over voltage"

The input voltage is too high03XX

"Input under voltage"

The input voltage is too low

04XX"Output over voltage"

The output voltage is too high05XX

"Low battery voltage"

The voltage of the connected battery
is too low

06XX"High battery voltage"

The voltage of the connected battery
is too high07XX

"Output over current(+)"

Output over current (+)

08XX"Output over current(-)"

Output over current (-)

09XX"Input over current(+)"

Input over current (+)

10XX"Input over current(-)"

Input over current (-)

11XX"The internal temperature is too high"The internal temperature is too high

12XX

"The internal temperature is too low"

The internal temperature is too low

13XX"Connection check error"

Connection check error

14XX"CH1 & CH2
prohibited"

15XX"Battery polarity reversed!"Battery has been connected withpolarity reversed.

16XX"Internal control error"

Internal control checking error

17XX"Exceed safe time limit"

Safe time limit is exceeded

18XX"Exceed safe capacity limit"

Safe capacity limit is exceeded

19XX"Exceed safe temperature range"

Safe temperature range is exceeded

20XX"Output connection broken"

Output connection is broken

21XX"Balance port connection error"

Balance port has a connection error

22XX"Low cell voltage detected on balance port"

Low cell voltage is detected onbalance port

23XX

"High cell voltage detected on balance port"

High cell voltage is detected onbalance port

24XX

"Voltage match error. Balance port sum is lower
than output."

Voltage matched error, the voltage ofthe balance port sum is lower thanthe output one

25XX"Voltage match error. Balance port sum is higher
than output."

Voltage matched error, the voltage ofbalance port sum is higher than the
output one

26XX"Number of cells doesn't match the setting"Number of cells connected doesn'tmatch the setting

27XX"Number of cells setting appears low"

Number of cells setting appears low

28XX"Number of cells setting appears high"Number of cells setting appears high29XX

"Balance not needed, Remove connection frombalance port"

Balance port error, Ni-, Pb does notneed balance port, but voltage ofbalance port is detectedcommon-negative

connection- 41 -

Common-negative connected
CH1&CH2 is prohibitedto406DUO V1.2.0

Synchronous Balance Charger/Discharger
30XX"Balance required!"

Balance port is unplugged

31XX"Auto detect the number of cells failed, pleaseconnect balance or set cells"

Check connection or balance port

32XX

"AD watchdog error"

AD watchdog error

33XX"Synchronous mode: Channel outputs imbalance"

Channel outputs are imbalance inSynchronous mode

34XX

"This channel is needed to access the resistor orbulb load"

This regenerative channel is neededto access the resistor or bulb load

35XX

"The other channel is occupied"

The other channel is occupied- 42 -