Hyperion Samsung Galaxy SII 2x Battery + Travel Charger for Samsung Galaxy S 2 i9100 (NOT Compatible with Sprint Epic Touch 4G SII, AT&T i777 SII, or T-Mobile SII)
Includes 2x 1800mAh Batteries and 1x Universal Dock Charger. Compatibility: Samsung Galaxy S2 i9100 Android Phone*Fits original back cover. Battery Cell Type: Lithium-Ion Voltage: 3.7V Capacity: 1800 mAh. Actual battery life will vary depending on your specific hardware and software configurations and network conditions. Built-in overcharge protection. Charger Input: AC100-240V worldwide use; 50/60Hz 0.15A Output: DC 4.2V 350mA