The optional BGGH5 grip for the Panasonic GH5 contains a battery compartment for an additional battery that will take over when the primary battery has been depleted. This comfortable adapter also features a second shutter release that users find helpful when shooting vertically with the GH5. The DMW-BGGH5 is splashproof, dustproof, freezeproof (-10°C), and comes in black to match the camera.