World's highest capacity for Galaxy Note II @ 9300mAh capacity- 3 times the capacity of original Galaxy Note II Battery and 1 time more than other makers' Galaxy Note II Extended Batteries.ZeroLemon in house engineered Full Edge Wrap TPU case to protect your phone - World's only maufacturer to integrate both back cover and case into one for ultimate protection.-----------------------------------------------We engineered the world's highest capacity battery for Galaxy Note II while providing a full edge wrap case to protect your valuable phone. We are able to acheive these features while able to maintain the same phone thickness as other maker's lower capacity battery.-----------------------------------------------