This is a lithium-ion polymer battery with a capacity of 350mAh and an output range of 4.2V when fully charged to 3.7V. It comes with a genuine 2-pin JST-PH connector and includes necessary protection circuitry to prevent over-charging or over-use. This battery is only compatible with LiIon/LiPoly constant-voltage/constant-current chargers at a rate of 350mA or less. It is suggested to use the Micro Lipo charger with a default rate of 100mA. It is important to note that these batteries do not have thermistors built-in and should not be charged or used unattended. The battery should be used by experts who are comfortable working with power supplies.

Specifications:

Weight: 7g Size: 32.5mm x 25mm x 5mm Power Lead Length: 25mm Output: 350mAh at 3.7V nominal