FatShark 18650 Li-Ion cell Headset Battery Case
7.4V nominal voltage for use with existing FatShark goggles.
Fits into head strap like standard FatShark battery packs. Large capacity when used with high capacity cells (batteries not included).
Batteries should be removed and charged via a dedicated 18650 style charger
Battery case requires 2 x 18650 cells - flat top without protection circuit (Sony VTC6 for example)