Sony NP-FW50 Lithium-Ion Rechargeable Battery (1020mAh)
Fits: Sony Alpha NEX-3 5 6 and 7 Series Cameras DSLR-SLT-A33 DSLR-SLT-A55
The Sony 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.