Hawk-Woods Dummy Battery Adapter Cable for Panasonic GH4/GH5
Amazon.com : Wasabi Power Battery (2-Pack) and Charger for Panasonic DMW-BLF19 and Panasonic Lumix DMC-GH3, DMC-GH4 : Digital Camera Batteries : Electronics
DMW-BLF19E Battery for Panasonic GH4 Lumix GH4 GH3 DC-G9
Vello BG-P1 Battery Grip for Panasonic Lumix GH3 and GH4 | Vello
Core SWX Powerbase EDGE V-Mount Battery for Panasonic GH3/GH4/GH5/GH5s Camera PBE-GH
Amazon.com: Kastar 4-Pack Battery and LTD2 USB Charger Replacement for Panasonic Lumix DMC-GH3KBODY, Lumix DMC-GH4, Lumix DMC-GH4A, Lumix DMC-GH4H, Lumix DMC-GH4KBODY, Lumix DC-GH5, Lumix DC-GH5S Cameras : Everything Else
Amazon.com : Wasabi Power Battery (2-Pack) and Dual USB Charger for Panasonic DMW-BLF19 and Panasonic Lumix DMC-GH3, DMC-GH4, DC-GH5, DC-GH5S, DC-G9 : Electronics