LI-PO 7.4V 1450mAh 20C battery deans

Capacity: 1450mAh
Voltage: 2S Cell / 7.4V
Dimensions: 120 x 14 x 12 mm
Plug: Deans

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 goes down.
Charge the battery before storage.
IMPORTANT: you must use a Li-Po charger, no exceptions.