2300 mAh Extended Slim Battery for Samsung Galaxy EPIC 4G D710 Buy this Battery and always keep a charged spare battery in your pocket Capacity: 2300 mAh; (longer battery life compare to standard battery) Same size as standard battery. Do NOT required to use bulky back cover. Quick charge with automatic constant current control prevents battery from overcharging, short... Please allow the battery to "Condition" with fully charge and discharge 5 times to enjoy max charge capacity.