Designed for the Panasonic Lumix SR1 II camera, the DMW-BG2 Battery Grip adds security and comfort for vertical shooting while holding an additional DMW-BLK22 rechargeable lithium-ion battery for extended operating times. This battery can also be replaced without having to power the camera down. Users benefit from quick access to essential functions like a secondary shutter button, joystick, additional dials, and more. The grip is dust and splash resistant, so you can still experience proper functionality in unfavorable weather conditions.