Sony NP-FW50 Lithium-Ion Rechargeable Battery (1020mAh) for Alpha 7

Sony NP-FW50 Lithium-Ion Rechargeable Battery (1020mAh) for Alpha 7 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.