PLEASE NOTE: These batteries are not compatible with NFC or Google Wallet. FEATURES: - These QUANTUM replacement batteries for Samsung Galaxy S2 Epic 4G Touch are designed to deliver up to 400 hours of charge. - Created from certified Grade A+ battery cells that provides a capacity of 1,800 mAh. - Quality connectors provide optimal connection to your phone. - Quality assurance with state of the art testing. Can withstand drops and impacts in your phone. Safety Guaranteed. - Fail proof built-in IC that monitors temperature and input to protect you and your phone. - Built to last with up to 550 cycles. SPECIFICATIONS: - Compatible Phones: Samsung Galaxy SPH-D710 ( Sprint ), SPH-D710 ( Boost Mobile ) SCH-R760 ( US Cellular )- Battery: 2,600 mAh Lithium Ion - Voltage: 3.8 V == 2 A - Dimensions: 2.4 x 2.2 x 0.2 inches - Weight: 1.7 oz. IN THE BOX: - 2 QUANTUM Samsung Galaxy S2 Epic 4G Touchspare batteries EXTENDED 12 MONTH WARRANTY: QUANTUM aims to reach the highest limits of customer service excellence! If there is ANY REASON why you are unhappy or unsatisfied with ANY of our products, we guarantee you an exchange or refund within 1 year!