Newell DMW-BLK22 Battery for LUMIX S5, GH5, GH5S, G9 - Newell Pro - Camera Batteries, Chargers, LED lights and more
Amazon.com : Synergy Digital Camera Battery, Works with Panasonic Lumix DMC-FZ18 Digital Camera, (li-ion, 7.4V, 750 mAh) Ultra Hi-Capacity, Compatible with Panasonic CGA-S006 Battery : Electronics
Panasonic DMW-BGS5 Battery Grip for Lumix S5/S5 II