8 DEALER MANUAL FOR 			BT F021.B504

DEALER MANUAL FOR BATTERYCONTENT
8.1 Instructions

28.1.1 	Battery2

8.2.1 	Installing the battery

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8.1.1.1 Safety Instructions2

8.2.2 	Removing the battery

6

8.1.1.2 Battery Storage3

8.2.3 	Charging the Battery

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8.1.1.3 Battery Wear3

8.1.1.4 Pedelec Riding Distance3

8.3 Specifications

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8.3.1 	Battery

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8.1.2 Charger
8.1.2.1 Battery charger Instructions  BF-DM-C-BT F021-EN May 2022

8.2 Operation

8.2.3.1 Safety Instructions4156

8.1 INSTRUCTIONS
8.1.1.1 Safety instructions

8.1.1 Battery

It is possible for the battery to cause a fire,explosion or hazard if the battery is connected
to an incompatible system. Do not open,
disassemble or pierce the battery as this canlead to short circuits, leaks, fires or explosions. If
the battery falls to the ground, or exposed to a
blow or similar event, do not continue to use
the battery, take it to your retailer to examine.
Use only the original charger supplied with thebattery, otherwise it can lead to an explosion or
permanent damage. The disposal of usedbatteries must be carried out at a suitabledisposal point.

Your pedelec can be equipped with different
battery types.

(Depending on the manufacturer's configuration)
Model numbers:
BT F021.B504

The battery should always be kept out ofreach of children. The use of the charger
or the battery is not suitable for children.
Do not touch a leaking battery.
Leaking electrolytes can seep into the skin andcause discomfort. If battery acid encounters theeyes, do not rub it! Immediately wash your eyes
carefully with clean water and consult a doctoror a hospital.

Before use, read the information on the label ofthe battery.

A faulty battery can lead to overheating,smoking or burning.
When the battery gets hot keep yourself andothers a safe distance away from the battery. In
case of damage or heat, you should avoid
touching the battery. See chapter ("Environmental tips").

Please only use the original BAFANG charger tocharge the battery. The battery is not fully
charged when it is delivered. Please charge thebattery completely before its first use and beforestorage.

• It is recommended to charge the battery
after use. Deep discharge is harmful to thebattery. Never fully discharge the battery.
If the battery remains uncharged for anextended period, this will damage thecapacity of the battery. For storage, therecommended capacity of the battery should
be between (60-80%).

Do not disassemble the battery.
The battery contains protective components toavoid danger. Incorrect handling, such as
improper disassembly, can destroy the protectivefunctions and lead to overheating, smoke andexplosion.
Do not intentionally short-circuit thebattery.
Never allow the plus and minus connectors tocome into contact with each other. Do not• Do not charge the battery longer than thecharging time specified in the "SPECIFICATION" table.

2BF-DM-C-BT F021-EN May 2022  

• Do not extend the battery to temperatures
below the permissible storage temperatureof -10 °C to 35 °C. Note that temperaturesof about 45 °C are common near heaters,in direct sunlight or in overheated vehicle
interiors.

allow the battery to come into contact withmetal objects. It is dangerous if the battery isshort-circuited. As it can lead to overheating,smoke, explosion or burning.
Do not heat or burn the battery.
An overheated or ignited battery can cause
battery cells to explode.

Do not charge the battery near open fireor in direct sunlight.
This can cause errors or internal problems inside
the battery, also damaging the protectivefunction. It can lead to abnormal chemical
reactions or malfunctions that lead tooverheating, smoke and explosion.

8.1.1.3 Battery wear
The battery can be charged 600 times. The
battery capacity decreases during this time, thus
reducing the range of the pedelec. If battery's
capacity range is not enough, it may need to bereplaced.

Do not damage the battery.
The battery must not be dropped or damaged.
This can lead to overheating, smoke andexplosion. Never submerge the battery in water.

8.1.1.4 Pedelec riding distance
It is best to charge the battery at room
temperatures and insert the battery just before
the start of the journey. The discharge cycle of

Do not charge the battery directly fromthe socket or a cigarette lighter in the car.
High voltage and excessive current will damage
the battery and reduce its lifespan. It can lead tooverheating, smoke and explosion.

the battery can be affected by:• Used pedal power• Total weight (load and driver)• Tire air pressure

8.1.1.2 Battery Storage• Headwind

If you do not use your pedelec for a long time,
remove the battery, and charge about (60-80%)
on. Store the battery separately in a suitable dryplace.

• Ambient temperature• Road/underground condition• selected speed level• Slope• Avoid direct sunlight from the sun, as it may
cause it to overhead, and cause internalproblems in the battery. It can lead to abnormal chemical reactions or malfunctions thatlead to overheating, smoke and explosion.

• Battery charge level• Age• Remaining capacity of the battery• To prevent a deep discharge, the battery is
put into sleep mode after a certain time.

  BF-DM-C-BT F021-EN May 2022

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DEALER MANUAL FOR BATTERY

Do not continue to use the battery if you noticethat it gets hot during operation, charging orstorage, develops a strong smell, changes itsappearance, or is otherwise unusual. Do notcontinue to use the battery and have it checked
by a retailer before using it again.

Do not use the battery near heat sources.
Do not use the battery near an open flame or attemperatures above 60 °C. High temperatures
can cause the battery to burn or explode.

8.1.2 Charger• The charger must not be operated by children or

8.1.2.1 Battery charger Instructions• Do not use your charger if it is moist or dusty.

people with limited sensory or mental disabilities.

To prevent the risk of electric shock, you should
never open the charger. Maintenance work may
only be carried out by qualified service
personnel. Be sure to read the information
about your charger before use! Unplug thepower plug before connecting the battery to thecharger or removing it from the charger.

• Avoid direct sunlight.
• Disconnect the charger from the power supply
when not in use.

• Use only the original Bafang charger that camewith your pedelec.

• Do not cover the charger while in use. There is thepossibility of short circuits or fires.

Keep the charger away from children andanimals. In the event of malfunction or damage,it may result in a fire or electric shock.

• When cleaning the charger, unplug it from thepower outlet first.

• Stop the Charge process if the charging cycle lasts
longer than the length listed in the Specifications
table.

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BF-DM-C-BT F021-EN May 2022  8.2 OPERATION
8.2.1 Installing the battery

3. Hold the two sides of battery and place thebottom part of the battery into the frame,
making sure it sits comfortably on the down
support.

For correct insertion, the battery must beconnected, ensuring all pins are correctly
connected to the battery holder. When pushingthe battery into position. Make sure that thebattery has clicked into the locking mechanism
before you set off.

4. Now push the top part of the battery into
the frame, until you hear the battery lock
into position, and push the limiting stopper
to keep the battery from dropping.

2. Insert the lock with the matching key into
the round hole on the side of frame. Theninsert the upper support into the frame andmake sure the top of lock cylinder passes
through the round hole on the uppersupport. Use one ST2.6*16 screw and three
M3*10 screws to tighten the lock andupper support.

  BF-DM-C-BT F021-EN May 2022

5DEALER MANUAL FOR BATTERY

1. Insert the down support into the frame tomake sure its brim fits into to connection
interface. Use one ST2.6*16 screw and one
M3*10 screw to tighten the down support..

8.2.2 Removing the battery

Charge the battery at temperatures between 0°C
and 45°C (ideally at room temperature approx.
20 °C). Give your battery enough time to reachthis temperature before charging.

1. Turn the key in the lock to open the firstlocking mechanism of the battery. Youwill notice the top parts of the battery will
come a few centimeters away from theframe.

The charging time depends on several factors. It
can vary greatly depending on the temperature,age, use and capacity of the battery. For information on
the charging time of your battery, see "SPECIFICATION".

When the battery is fully charged, the charging
process stops automatically. Unplug the connector from the battery and then removed from themains.
8.2.3.1 Safety instructions
Use only the battery charger.

2. Then push the limiting stopper up to release
the second locking mechanism and holdthe two sides of battery to pull the battery.

Make sure you are using the correct mains
voltage. The required mains voltage is indicatedon the charger.
• Do not touch the power plug with wethands. There is a risk of electric shock.
• Note: A sudden rise in temperature cancause condensation in the battery. To avoid
condensation, charge the battery at thesame place where it is stored.
• Before using, check that the charger, cableand plug are not damaged. Do not use thecharger, if you notice any damage. There isa risk of electric shock.

8.2.3 Charging the battery
Use only the original battery charger supplied toyou, as there is a risk of fire or explosion if theincorrect charger is used.

• Charge the battery only in a well-ventilatedroom.

You can charge your battery when mounted on
the bike or when it is removed.

• Do not cover the charger/battery during
charging. There is a risk of overheating, fireor explosion.

Lithium-ion batteries are not subject to any
memory effect. You can recharge your battery
at any time, even after short journeys.

• Charge the battery in a dry place, and on a
non-flammable surface.

6BF-DM-C-BT F021-EN May 2022  

The battery must be charged at least once every
3 months to avoid damage or destruction of thecells.

If the charging process takes longer than usual,the battery may be damaged. In this case, stop
charging immediately. Have the battery andcharger checked by your retailer to prevent
further damage.

Errors - Causes and Solutions
CauseSolution

The operating display does notlight up.

Power plug is not correctly connected to thepower supply

Check that all connectors on thecharger are correctly connected tothe power supply.

The charging indicator does notlight up.

The battery may be malfunctioning.

Contact your retailer.

8.3 SPECIFICATIONS
8.3.1 Battery
Primary Settings

BT F021.B504

Nominal Voltage

36 VdcNominal Capacity

14 Ah

Min Capacity

13 Ah (1C Discharge)

Energy504 WhCharging time

8h with 2A Charger

Storage (At 35% SOC &-10° ~ 35 °C)

6 months

Riding Distance *Minimum 50km ( 250W motor)

Dimensions (L * W * H)

434*68*76.5mm

Weight2.8KG

Charger

Customer specified* Ideal conditions: Flat terrain, approx. 15km/h average speed, no headwind, approx. 20 °C ambient temperature, high-quality bike components, tire tread and pressure with minimal rolling resistance, experienced eBike rider(always shifts gears correctly), additional weight(excluding bike weight)<70kg.

  BF-DM-C-BT F021-EN May 2022

7DEALER MANUAL FOR BATTERY

Description