QUMOX 2x NP-FW50 rechargeable Li-ion Battery + Charger for Sony Alpha 7, a7, Alpha 7R, A7R, A3000 Alpha, NEX-3, NEX-3N, NEX-5, NEX-5N, NEX-5R, NEX 5T, NEX-6, NEX-7, NEX-C3, NEX-F3, SLT-A33 SLT-A35 SLT-A37, SLT-A55V, DSC-RX10 Digital Cameras Cyber-shot (Electronics)
High performance price. I'm not sure that the batteries have the advertised capacity. The charger is very well and allows not to use the device as a charger (as is the case of origin!)
