The rolux smart v-mount battery rl-bp0990sm is a professional lithium ion battery with a capacity of 99 wh. The battery is lightweight and has two d-tap outputs of 14.4 volts (maximum 216 w) and two usb outputs of 5 volts. The status of the battery is indicated by the lcd screen on top of the smart v-mount battery. A battery charger is not included, but is available separately (see optional accessories). Application rolux smart v-mount battery rl-bp0990sm the rechargeable battery can be used in combination with various electrical devices with v-mount connection, such as led lights and video cameras. Furthermore, the battery has two usb and two d-tap connections, which gives you the possibility to charge your smartphone, laptop or tablet while the battery provides power to an led lamp, for example. Display because this rolux smart v-mount has an lcd display, it is easy to read the desired information. By means of a push button, the display can be switched on so that it can be read. During charging, you can read how much percent of the battery is already fully charged and the display shows the current voltage and the consumption in amperes at that moment. When the battery is overloaded, a flashing warning triangle is shown on the display, which disappears when the overload is cleared. Difference from standard v-mount batteries the difference with standard v-mount batteries is that this battery is 20% smaller and 10% lighter in weight.