The rolux rl-is2 battery holder is designed to power your videocamera, monitor or videolamp with v lock interface. you need to connect a v-mount battery (not included) to the rl-is2 to create a reliable solution. v-mount batteries are known for their long battery life, which allows you to get the most out of your rl-is2. the v-mount batteries can easily be disassembled with one push on the unlock button. Usage rl-is2 Place your v-mount battery simply in the battery holder. only one cable needs to be connected, that’s all. the rl-is2 is suitable for all common v-mount batteries. on the side of the rl-is2 is a d-tap connector to power your favorite accessories (for example, a led lamp). in addition, the rl-is2 comes with a male and female tamiya plug to feed for example a monitor or lamp through the battery holder. the rl-is2 is suitable for the blackmagic ursa mini.