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Lithium Ion Pin type batteries - designed for wearables

Miniature batteries have become a key component of today's common mobile wearable devices. For these innovative product ideas to work in practice, their Li-Ion cells must be as small as possible.

Miniature rechargeable batteries - especially designed for wearables

Our Li-Ion miniature batteries deliver a high energy density, a good cycle stability and a long lifespan. In addition, they are extremely light and robust.They are especially designed for wristband devices, fitness trackers, smart glasses, stylus pens, wireless head phones, hearing aids, industrial IoT applications and other applications.

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Panasonic Li-Ion (Pin type) Battery Solution Video

This video shows on the one side the recommended applications of our Li-ion Pin type batteries and on the other side the inner working of a Li-Ion Pin battery and gives an excellent overview of the batteries materials (e.g. electrodes, gasket, insulator, poles, etc.).

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Downloads

Name File type Size Date Language
PDF Lithium batteries handbook Manual, Handbook 14 MB 20.10.2020 English
PDF Panasonic-Batteries_Li-Ion-Pin-type-Leaflet-Wearables-GB Flyer, Leaflet 942 KB 30.08.2024 English
PDF Short-Form-Catalog Catalog 8 MB 07.03.2025 English

Features

  • Quite small diameter pin-shaped Lithium-Ion battery which expands design options for micro devices
  • Rechargeable battery that can be used repeatly and has the output capability required for near field communications
  • High-strength metal exterior provides excellent reliability
  • High energy density, a good cycle stability and long lifespan
  • Outstanding technical design makes this battery ideal for wearable devices with heavy power demands

Applications

Electric pens
Wearables
Hearing aid
Wristband devices
Smart glasses
Industrial IoT applications etc.

Li-Ion batteries - terminal types

li-Ion-pin-type_category_terminal-types.jpg

We are offering a range of different tabs for our Li-Ion Pin type batteries in order to meet customer needs. In addition, tailor-made solutions are possible as well.

E2 through-hole type

M2 surface mount type

Specification

Part number CG-320B CG-420A CG-425A
Maximum charging voltage 4.35V
Nominal voltage 3.8V
Typical capacity 16.0mAh 23.0mAh 32.0mAh
Dimensions* Diameter(Max.) 3.65mm 4.7mm 4.7mm
Height(Max.) 20.0mm 20.0mm 25.0mm
Weight* Approx. 0.5g Approx. 0.8g Approx. 1.0g
Operating temperature Charge   0℃ to +60℃
Discharge -20℃ to +60℃
Maximum charging current 11.2mA 66.0mA 90.0mA
Certifications IEC62133, UL1642