Laza Samsung Galaxy S4 7000mah [Zcell] Extended Battery + [X Armor] Extended Dual Layer Impact Resistant Protective Armor Case (Compatible with AT&T I337, Verizon I545, Sprint L720, T-Mobile M919, International I9500 & I9505) NFC for S Beam and Google Wallet &ndash; Extreme Black Includes X-Armor dual layered case to endure hard drops & heavy shocks. No more brittle Back Covers that offer no protection to your phone. Zcell powered are accurately rated batteries so that means they have every drop of power they say they do. They feature high capacity, top quality and more charge cycles. Full NFC support for S Beam and Google Wallet Capacity: 7000mah ACTUAL CAPACITY, WE DO NOT SKIMP ON POWER. 1 Year EZ Warranty