Gold Mount Battery (14.4V, 6600mAh, 95Wh) and Gold Mount Battery Charg – Wasabi Power
Panasonic, 14.4V, Battery and Charger Kit - 22EC25|EYC941B - Grainger
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