EMPTY Vivitar Brand Battery. High quality, long lasting, market leading performance at a fraction of the price Sony NP-FW50 Replacement. 100% Compatible with the SONY Alpha A7, A7R, A3000, NEX-7, NEX-6, NEX-5N, NEX-5R, NEX-5, NEX-F3, NEX-3N, NEX-C3, NEX-3, Cyber-Shot DSC-RX10, SLT A55, A37, A35, A33 cameras. Market leading, utra-high capacity: 1200mAh The Vivitar NP-FW50 battery communicates with the Sony NEX series camera, so you can always check the remaining capacity, shutter count and recharge performance on the cameras power source info screen.