M2cpower&reg; 2x NP-FW50 Rechargeable Li-ion Battery for Sony Alpha NEX-3, NEX-3N, NEX-5, NEX-5R, NEX-5N, NEX-6, NEX-7, NEX-C3, NEX-F3, SLT-A33, SLT-A35, SLT-A37, SLT-A55V Package Includes 2 batteries power your NP-FW50 Rated at 7.4V and 1950 mah Premium Grade A cell for longer battery life with no memory effect M2cpower Products are CE certified, tested by manufacturer to match OEM products. 30 days money back 12 months seller's guarantee against manufacturer defects from date of purchase