[grade a battery cell]: 2900mah 3.85v li-ion battery replacement for galaxy s4 .manufactured and tested under strict quality control standards.high quality grade a++ battery cells ensure longer battery life (1000+ cycles) , high-speed, efficient charging.
[attention]: not compatible with galaxy s4 active or s4 mini
[compatible models]: s4, note4, g530, j710.
[near-field-communication]: (nfc) technology to communicate with other nfc tags
[build-in special microchip]: prevent your samsung galaxy s4 battery over-charging, over-discharging, over-heating and short-circuiting, extended battery life