Sony A7SII Battery
The Sony A7SII Battery NP FW50 Lithium-Ion Rechargeable Battery is unique in its design since it not only supplies power to your camera but will display the remaining battery capacity. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.
Fits: Sony Alpha NEX-3, 5, 6 and 7 Series Cameras, DSLR-SLT-A33, DSLR-SLT-A55
Specification: Sony NP-FW50 Lithium-Ion Rechargeable Battery