1.3500 mAh high capacity battery for Samsung galaxy s2 i9100 2.EU version battery with battery door 3.Power surge protection 3500 mAh Extended Battery for Samsung Galaxy S2 I9100 EU Version with Battery Back Door Cover Mobile phone battery with following quality:Anti-memory: No memory effect during charging;Anti-overcharging: New IC chips to prevent overcharging;Anti-short circuit: Safety circuit ...