2000mah Premium High Capacity Battery for HTC Vivid, HTC Velocity This is a High Quality Battery for HTC Vivid Capacity: 2000 mAh; (longer battery life compare to standard battery) Same size as standard battery. Do NOT required to use bulky back cover. Please allow the battery to "break in" with fully charge and discharge 5 times to enjoy max charge capacity. Keep one as a spare and you like to use your Smart Phone for a longer period of time when you call, play games or while browsing.