The The Volta NP-F770 7.4V Lithium-Ion Battery provides 5400mAh and is rechargeable. Fits all standard Sony NP-F battery plates. The Volta Dual Battery Charger features interchangeable battery plates, an LCD display, and is equipped with smart charging capabilities.
The interchangable battery plates make this charger a perfect solution for charging many types of li-ion batteries for both video cameras and DSLRs. With a USB input on its side, you can also charge a mobile device at the same time. The charger will auto-detect the battery voltage to prevent overcharging, and a backlit LCD display shows you the current charge status. You can also charger your batteries faster with the unit's high current charging mode, helping to ensure that you are never stranded with a dead battery.