The Dracast 2 x NP-F 6600mAh Batteries and 2 x Charger Kit provides power to LED light fixtures when mains power is unavailable. The kit contains two NP-F 6600mAh lithium-ion batteries and two multi-voltage chargers. Runtime is approximately 270 minutes with Dracast's LED160, LED200, X1, or X2 lights on a fully charged battery.