Polymer Lithium Ion Battery – 400mAh

Polymer Lithium Ion Battery – 400mAh


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This is a very small, extremely light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 400mAh! Comes terminated with a standard 2-pin JST-PH connector – 2mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium Polymer charger.

Battery includes built-in protection against over voltage, over current, and minimum voltage. Please use caution when using this battery in wearable projects. When using conductive thread, a short in the thread can create sparks and heat. We recommend using coin cell batteries for beginners.

Note: Due to the requirements of shipping these batteries, orders may take longer to process and therefore do not qualify for same-day shipping. Sorry for any inconvenience this may cause.

Note: Be careful with the JST connectors. They can stick in pretty good and tugging on them can damage the connector. Check this tutorial for an easy way to remove them safely.

Dimensions: 5 x 25 x 35mm

Weight: 9g


2C continuous discharge – very high for low price
Excellent long-term self-discharge rates (<8% per month) Robust power source under extreme conditions (-25 to 60C) Documents: Datasheet (LiPo Cell) Datasheet (Protection Circuit) JST connector MSDS

Additional information

Weight 0,05 kg
Dimensions 5 × 1 × 3 cm

Senza marca/Generico