... Power surge protection 4)High capacity:3500mAh For LG Optimus 2X P990 Extended battery with back cover 3500mAhFor LG Optimus 2X P990 ... ,ODM service available .About us: We produce mobile phone accessories for blackberry, HTC, etc. including mobile phone housing, flex cable, ... batteries, headset, phone case,etc. We offer many different chargers, (car-charger, 3 in 1 charger), should there be any problems ...