Does such a thing as a 141000 or 181300 exist? If not, what about a protected 2p in-line pack using decent quality cells?
I’ve switched the majority of my lights over to 7135 based drivers but some of them just look out of proportion with a single cell body. There’s also the modded mini maglites where a 1600mAh double length 14500 or 2p in-line pack made from 800mAh cells would be really nice. If nothing exists on the market, I wonder how hard it would be to diy? I’m thinking 2 cells with an insulator between them connected + to + and - to - with ribbon wires and a high current capable protection board all wrapped in a single piece of shrink tubing.
Any thoughts or should I just start looking for some good 8.4v drivers?
I would think making your own battery like that would be more than unpradictable and dangerous to say the least, it’s probably why there aren’t any (got that wrong lol). But using two protected cells as they are with an appropriate driver should work pretty well, or you could just make/use a dummy battery with the 1, 14500/18650.
EDIT
The nitecore NL1427
battery is the only one i’ve seen 3.7v (4.2v max) 1500mah cell with a double cell to make it 2 AA length.
I know someone on here had a 1s2p adapter for two 18650s, but I don’t know if it would be thin enough to use in a tube meant for 18650s, but I can’t remember who it was… I’d think your idea about ribbon cables and heat shrink would work quite nicely, especially if you used the very thin flat copper ribbons you find in some laptop packs and remove the heat shrink from the cells and reshrink them with the thinner type of heatshrink.
Made from .015" copper sheet, center board is an old switch PCB with all the vias drilled out that tie the two sides together. It's just a thing that can be soldered to without connecting the front & back sections electrically.