DMW-BGGH3 Newmowa Vertical Battery Grip Replacement for Panasonic Lumix GH3 Lumix GH4 Digital SLR Camera Replacement battery grip for Panasonic DMW-BGGH3 and Lumix GH3 & Lumix GH4 Worked with 1 DMW-BLF19 Battery,Same function as the OEM Panasonic Battery Grip It offers comfortable grip and easy handling even in vertical shooting Effectively Doubles your Shooting Time Comes with 2-year manufacturer warranty