Galaxy S4 Battery : Stalion&reg; Strength Replacement 2600mAh Li-Ion Battery for Samsung Galaxy S4 [24-Month Warranty] 2X Batteries (2-Pack) with NFC Chip + Google Wallet Capable 2x Replacement Battery Model B600BU, EB-B600BUB, and or EB-B600BUBESTA for Samsung Galaxy S4 S IV i9500, I9505, M919 (T-Mobile), I545 (Verizon), I337 (AT&T), L720 (Sprint), R970 (U.S. Cellular/MetroPCS), Not for Galaxy S4 Active Built-in IC chip prevents overcharging. Full NFC functionality. Guaranteed to fit your phone. This battery is equipped with an NFC antenna, allowing your handset to communicate with other devices and accessories equipped with NFC technology. Battery Specs. Capacity: 2600mAh. Battery type: Lithium Ion, Voltage: 3.8V Li-ion. Battery that is designed specifically for your Samsung Galaxy S4. CE and ROHS certified.