The Dmw-BG2 battery grip is designed to extend shooting time and enhance the shooting experience with Lumix cameras. Compatible with Lumix S1II (Dc-S1RM2), it holds two batteries-one in the camera and one in the grip-effectively doubling battery life for longer sessions. Key features include hot swap capability, allowing you to replace the battery without turning off the camera, and simultaneous power supply, where both Lumix S1RII and Dmw-BG2 batteries work together in power-intensive recording modes. Its ergonomic design ensures a seamless grip and easy control for both horizontal and vertical shooting, with a shutter button, dial, 8-way joystick, and more for intuitive operation.Note: Battery pack BLK22 is not included.Features:Extended Battery LifeBy using two batteries-one in the camera and the other in the Dmw-BG2 battery grip-the available battery life is doubled for extended shooting.Hot-Swap ReadyYou can replace the Dmw-BG2 battery without powering down the device, ensuring uninterrupted shooting or recording. This hot-swapping capability allows for seamless battery changes, making it ideal for extended shoots, live streaming, or time-sensitive situations where downtime is not an option.Simultaneous Power SupplyShoot more dynamically without the need for external adapters or cables. In power-consuming recording modes, Lumix S1RII and the Dmw-BG2 batteries supply power simultaneously.Consistent controls for vertical and horizontal shotsThe battery grip offers the same comfortable hold and controls as the camera body. With a shutter button, dial, and 8-way joystick, it ensures intuitive operation, letting you shoot just as easily in a vertical position as you would horizontally..