High Capacity 6220mAh NFC Battery for Samsung Galaxy S III * This package is specifically designed for Samsung Galaxy S III Model i535 I747 T999   L710 i9300 as we stated in our listing. * If you do not have Samsung Galaxy S3 S III i535 I747 T999 L710 i9300 , this package is not for you. Compatible with:  Samsung Galaxy S3 S III i535 I747 T999 L710 i9300 Package Description High Power 6220mAh Li_ion NFC Battery Quantity:1 NFC Battery package might vary * This NFC Battery has the same dimension as your stock NFC Battery. * You do not need a special back cover to use it. * Brand :Sporting Persistence * Voltage: 3.8V. * NFC Battery Capacity : 6220 mAh * High quality Li-Ion NFC Battery. * NFC Battery Type: Lithium Ion.   * Integrated microchip prevents overcharging and lengthens NFC Battery life. * The best replacement spare NFC Battery for your phone. * Our NFC Battery is sent out with little or no power, so please charge it for about   6 - 12 hours before using. * The NFC Battery operation time depends on conditions such as: Transmitting   power level, Signal (distance between the phone and the base station),   Network parameters defined by the operator. * This NFC Battery could also be charged in the phone directly thru the cell   phone charger . USB/AC Desktop Battery Charger Quantity: 1 * Charge your cell phone Battery without the phone. LED charging indicator * Also work with OEM (original) NFC Battery. * Quick charge with automatic constant current control prevents Battery   from over charging, short circuit, and electronic shock. * Small and compact, perfect accessory for traveling.Designed to charge Battery   quickly and safely. * This charger will never overcharge your Battery, prolong the life and performance of   the Battery. * LED charging light indicator. Turn red in charging, turn blue when done. * Input: AC 100-240V 50/60Hz 150mA. * Output: DC 5.2V 800mA. * USB Port Output: 4.35V 350±50mA. * Use this charger to charge the stock Battery as well, swap one out when   the other dies .