Evike Intellect 9.6V Small Type 1600mAh Airsoft Battery Pack - Butterfly Configuration - (29458&nbsp;) 1600mAh Capacity at 9.6v power Small-Tamiya Female Plug Type with 8 x 2/3A, 1.2v each cells Mini / Butterfly Configuration Type (for Airsoft use) Charged with a smart charger for Ni-Mh type batterys only Average power time of about 2.5 - 3 hours after a full charge and like many batteries of this type, will drain in about 48 hours. Make sure you charge before use in any game and make sure to bring spares!