A compact, professional battery & charger kit that is compatible with V-Mount & D-Tap devices.The ProMaster 8046 Compact V-Mount Battery Kit is a small yet high capacity li-ion battery with D-Tap and USB-A ports. It also includes a D-Tap charger for convenience.The battery sports an industry standard D-Tap port which can be used for charging and for powering other devices using a compatible cable. In addition to the D-Tap port, this battery also has a USB-A power output port for charging or powering other compatible devices. Four on-board LEDs display the remaining battery capacity and are easily activated with the push of a button.At 95Wh this battery meets the safety standards for most airline flights.