This just arrived:
View media item 83475
The Big Bertha of M12 batteries. I suspect it's more like a 7.0/7.5Ah battery but it was dirt cheap. I took it apart. The cells are unlabeled / sleeved but the construction inside is much better than I expected. They look just like the pink Samsung INRs out of a laptop battery I disassembled. The connector at the top is worse than some of the Powerextra off brand batteries I have but still workable.
I got this to leave in the trunk for using with the inflator.
View media item 83475
The Big Bertha of M12 batteries. I suspect it's more like a 7.0/7.5Ah battery but it was dirt cheap. I took it apart. The cells are unlabeled / sleeved but the construction inside is much better than I expected. They look just like the pink Samsung INRs out of a laptop battery I disassembled. The connector at the top is worse than some of the Powerextra off brand batteries I have but still workable.
I got this to leave in the trunk for using with the inflator.

