TOPCELLULAR Samsung Galaxy Ring Prevail 2 M840 Battery EB-L1G5HVA EB-L1F2HVU EB494865VA EB494865VO High Capacity & Long Lasting For Samsung Galaxy Nexus Global Prime / Samsung Galaxy Exhilarate SGH-i577 / Samsung Galaxy S Blaze 4G SGH-T769 / Samsung Focus 2 SGH-i667 / Samsung Galaxy Rush SPH-M830 / Samsung Galaxy Ring Prevail 2 M840 2200 mAh Voltage:3.7-4.2V,Capacity:2200 mAh,Compatible with the original battery cover door. STRONG BATTERY : Quality high capacity battery cell,Grade AAA cells ensure longer battery life (500+ cycles) and high-speed,efficient charging. SAFE BATTERY : Anti-over charge protection,Anti-over discharge protection,Protection against short circuit,Anti-explosion protection. SMART BATTERY : Power control chip,Dual Protection IC. Battery Type:High capacity Li-ion Battery.Tested under strict quality control standards. CE and ROHS certified.