Battery Polymer (3.7V – 400mAh) Li-Ion Single Cell (30x9x4mm) 400930

These are very slim, extremely light weight batteries 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

Dimentions 30x9x4mm mm (Length x Width x Thickness)

These batteries require special charging.

Do not attempt to charge these with anything but a specialized LiPo charger.

Battery includes built-in protection against over voltage, over current, and minimum voltage.