11.1V 20C discharge brick (PEQ 15) type LiPo battery. 1300mAh capacity.
Brick size 68x42x17mm
To prolong the life of a Li-Po battery:
-Never completely discharge the battery.
-Stop using the battery the moment you hear the Rate of Fire slowing
-Charge the battery before storage.
IMPORTANT: you must use a Li-Po charger, no exceptions.