Neewer&reg; Dual-Channel Battery Charger for Sony NP-FW50 Batteries Compatible With Sony NEX-3 NEX-5 NEX-6 NEX-7 NEX-C3 NEX-F3 SLT-A33 SLT-A37 SLT-A55 A3000 A3500 A5000 A5100 A6000 A7 A7R A7S A7 II Dual battery charger for Sony NP-FW50 battery Suit for NEX-3 NEX-5 NEX-6 NEX-7 NEX-C3 NEX-F3 SLT-A33, SLT-A37, SLT-A55, A3000, A3500, A5000, A5100, A6000, A7, A7R, A7S, A7 II Could Charges two batteries simultaneously(Batteries are Not included) Smart LED displays each battery's charging status Quick charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock