Riin 5800mah Extended Battery for Samsung Galaxy S4, S IV [Not for Galaxy S4 Active], I9500, I9505, Galaxy J, M919 (T-Mobile), I545 (Verizon), I337 (AT&T), L720 (Sprint) with Black Modified Battery Cover Rechargeable and removable power for I9500 Conductor use 100% pure nickel strap Rating: 5800 mAh Keep a spare on hand or replace your dead battery and battery cover Integrated microchip prevents overcharging & lengthens battery life