SHENMZ 3.85V Battery for Samsung Galaxy J7 ( 2017 ) SM-J727 J727( AT&T ), J727( Verizon ), J727R4( U.S.Cellular ) J727T1(MetroPCS）J7 Prime SM-J727T ( T-Mobile / MetroPCS). It doesn’t work with Galaxy J7 (2015 Ver).SHENMZ battery for Galaxy J7 has an IC chip that prevents overcharging and lengthens battery life.Grade A cells ensure longer battery life (500+ cycles) and high-speed, efficient charging. Please note that its full performance and longevity are only achieved after 3 to 5 complete charge and discharge cycles.CE and ROHS certified, SHENMZ for Samsung J7 ( 2017 ) Li-ion battery packs 3600mAh / 13.01Wh. of juice and uses the latest technology to make sure you get the most time possible out of a single charge.High-quality copper connectors provide an optimal connection to your phone. - Built to last with up to 500 cycles.Battery actual using time depends on your phone hardware and software configurations and network conditions.24 Month Warranty.