EZOPower 2-Pack 5400mAh Replacement Extended NFC Battery with White Door Cover + Battery Charger for Samsung Galaxy S IV / S4 GT-i9500 (AT&T, T-Mobile, Sprint, Verizon) Android Phone - NFC Enable for S BEAM AND Google Wallet Battery type: Lithium-Ion. Battery capacity: 5400mAh **NFC - Near Field Communication Enable For Google Wallet and S Beam Function No memory loss effect. White battery door included. Integrated microchip prevents overcharging & lengthens battery life Package Includes: 2x EZOPower NFC Extended Battery with White Door, 1x EZOPower Standard Battery Charger