1980 mAh Extended Slim Design Battery for LG P990 SU660, LG Optimus 2X, T-Mobile G2X, FL-53HN This is a High Quality Long Lasting Battery for the LG Optimux 2x, T-Mobile G2X, LG P990, SU660 (FL-53HN) Capacity: 1980 mAh; (longer battery life compare to standard 1500mah 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.