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 2000mAh!

This battery comes terminated with a standard 2-pin JST connector - 2mm spacing between pins.

Do not attempt to charge these with anything but a charger specifically designed for Lithium Ion batteries.

Features:

• 2C continuous discharge
• Excellent long-term self-discharge rates (<8% per month)
• Robust power source under extreme conditions (-25 to 60C)

Dimensions: 5.8x54x54mm (0.25x2.1x2.1")
Weight: 36g (1.27oz)

Downloads
UnionBattery-2000mAh Datasheet