The battery grip provides a powerful operating time of up to 12 hours, enough for continuous shooting for most of the day. It supports 18W fast charging with a charge time of just 2.5 hours. It can be used while charging to keep the gimbal powered during use. A quick-release design makes it convenient for replacement and smaller for easier storage. It can even be charged separately from the gimbal. Tips: 1. The BG21 Grip is not compatible with DJI RS 3 Pro and DJI RS 2. 2. Fast charging requires USB-C to USB-C Cable. In The Box: BG21 Grip × 1 Compatibility: DJI Focus Pro Grip, DJI RS 4, DJI RS 3