Pin-type Lithium-ion Battery㎜July 2023
Panasonic Energy Co., Ltd.

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This data in this document is for descriptive purposes only and is not intended to make or imply any guarantee or warranty.

1Pin-type Lithium-ion Battery, suitable for small devices

Hearing Aids

Wireless Earphones

Smart Glasses
Stylus Pen
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Wristband Devices
2Features

1) Super small and slim battery realizes not only
stylish designs but also high output.
2) A high-strength stainless exterior case provides
excellent safety and reliability.
3) Possible to select from Rapid charging or Longlife type according to the application.

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31) Super small and slim, but high output
 Provides stylish designs for your products, as well as Bluetooth low energy,vibration and other functions which needs big discharging current.

150mA 1 pulse/hour
0.5s

0.1mA

CG-320B Pulse discharging result with 150mA(10C)
4.5
Test Conditions
C: 11.2mA(0.75C)/4.35V - 0.3A(0.02C) cut(CC/CV)
D：Pulse current 150mA(10C) for 0.5s in every hour, Base current 0.1mA - 3.0V cut
Temperature: 20oCvs4.0

Voltage / V

Diameter : 3.65mm
Height : 20mm
Weight : 0.5g

3.53.0※Image chart

General Li-ion
18650 size

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CG-320B

Voltage when discharging with base current
Voltage when discharging with pulse current

2.50

10 20 30 40 50 60 70 80 90 100 110 120 130

Discharging Time / Hour42) High-strength stainless case, high safety and high reliability

 No swelling, no explosion, no fire.
 Certified by IEC62133/UL1642.
Test example

Swelling check
Nail penetration test
after 1,000 times cycle test

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Impact test53)Possible to select from Rapid charging or Long-life type according to the application

 Rapid charging, more user-friendly
 3C charging realizes 80% charging in 20 minutes.(CG-420A/425A only)
20 min. charging
0CG-425A
CG-420A

80% charged

CG-425A
CG-420A

100% charged

2060 min. charging
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63)Possible to select from Rapid charging or Long-life type according to the application

 Long-life type provides long-term use and long-term reliability（CG-420B）
TypeRapid charging typeLong-life type

Usage

Frequently useddevice

Long time or Longterm use device

Comparison data of 420 size
Energy Density(Wh/l)
Strage Recovery
Ratio(%) *3

Application

Charge Rate (C)45℃ Cycle
Characteristic (cyc)

20℃ Cycle
Characteristic (cyc)*2CG-420A

Model No.

CG-420A

CG-420B

CG-425A

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*1

CG-420B

Competitor A company*1 : 20℃ Cycle @ capacity ratio 80%*2 : 45℃ Cycle @ capacity ratio 80%*3 : 60℃ 30Days storage recovery ratio
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Manufacturing technology
Positive electrode(Lithium cobalt-oxide)
Separator

Negative electrode(Graphite)

Highly skilled battery design technology
Highly precise manufacturing technology
Highly quality control

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Specification

NEW

Part Number

CG-320B

CG-420A

CG-420B

CG-425A

Diameter(Max.)

3.65mm

4.7mm

4.7mm

4.7mm

Height(Max.)

20mm

20mm

20mm25mmWeight* (Approx.)

0.5g

0.8g

0.9g

1.0g

Typical Capacity

16mAh23mAh

29mAh

32mAh

Rated Capacity

15mAh22mAh

27mAh

30mAh

Size*

Nominal Voltage

3.8V

Maximum Charging Voltage

4.35V

Maximum Continuous Discharging Current

30.0mA(2C)

44.0mA(2C)

54.0mA(2C)

60mA(2C)

Maximum Charging Current

11.2mA(0.75C)

66.0mA(3C)

20.2mA(0.75C)

90.0mA(3C)

OperatingTemperature

Charge0℃ ～ 60℃

Discharge-20℃ ～ 60℃

Certifications

IEC62133, UL1642* Without tabs

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Pin-type Li-ion battery will make your product more attractive

Key Benefits
 Small & Slim
 Stylish design
 High safety & reliability Rapid charging
 Available for Bluetooth low energy,vibration and other functions
 Long product life time

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10Remarks
1. Standard voltage range is 3.0 – 4.35V. Protection required for over-charge/overdischarge. Please prepare protection circuit on the customer side.
2. The battery will be shipped with tabs.
Please ask a Panasonic sales person when tab customization is needed.
Through-hole typeSurface mount type

Standard Terminal Types
All models have stainless steel tab with tin (Sn) plating.

3. In order to prevent accidental ingestion of the battery, it must be inaccessible tothe individual user / customer.

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Please feel free to contact us
Panasonic Energy Pin-type Lithium-ion Battery
https://industrial.panasonic.cn/ea/products/pt/pin-li-ion

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