Onite 2x 2600mAh Li-ion Battery for for Samsung Galaxy S4, S IV, I9505, M919 (T-Mobile), I545 (Verizon), I337 (AT&T)L720 (Sprint) + 1 X Travel Charger [24-MONTH WARRANTY] Battery Type: Rechargeable Lithium-ion, Capacity: 2600mAh,Voltage: 3.8V,Lithium-ion Technology for optimum battery life with approx. 500+ charging cycles. The battery is guaranteed to fit your Galaxy S4 with a special IC chip to prevent overcharging. Tested under strict quality control standards. CE and ROHS certified. 24-month Onite Warranty with Amazon 30 days Full Refund Guarantee. Longest warranty period in market;100% Zero Defect Guarantee. Package contents: Onite Brand Battery x 2, Battery Wall Charger x 1.