CE and Rohs certified Samsung J7 spare battery SM-J727. Capacity: 3500mAh, Type: Lithium Ion, Voltage: 3.85V.Compatible with samsung galaxy J7 J727 J7 Perx J7 Sky Pro J710.Grade A cells ensure longer battery life to 500+ cycles and high-speed efficient charging.Built-in IC chip prevents over-charging,over-heating and short-circuit, keeping your phone powered.The battery also can be charged in the phone through the cell phone charger directly.It is better to use the OEM cable and charger to charge it.Full charge and discharge the new battery 3-5 cycles can lead to the best performanceThe battery can be reached the optimized effect of using after 3 - 5 complete charge and discharge cycles.24 Month Warranty.