Yeah, I’ve never had much faith in the Olight cells. The AmpsPlus 16340 is quite good too.
So the Olight ORB-163C05 cell just has an exposed negative contact at the top of the cell?
I’ve modded cells to have this feature before such as in the MBI HF which has a built in charging unit using the same principle.
And this carbon fibre spare cell carrier with built in charger.
I wouldn’t recommend modifying cells if you’re not confident in doing so though.
Gotta be very careful not to short these cells.
Interested how the contacts are arranged in the S1R, springs, contact plate or both used?