High Capacity (2300 mAh) NP-FW50 Battery & Charger Kit For Sony Alpha NEX5 NEX5K NEX5N NEX6 NEX7 Digital SLR Camera & CS MicroFiber Cleaning Cloth NPFW50 Li-ion Battery for Sony Alpha NEX5 NEX5K NEX5N NEX6 NEX7 Digital SLR Camera Battery Specifications - Energy Storage Capacity: 2300mAh /Voltage: 7.4 volts, Chemistry: Li-ion Super Long Time Recording Battery (2300 mAh) has a one-year warranty Includes 2x NP-FW50 2300 Mah Battery + Rapid AC/DC Battery Charger