Hi, I’m making an 10s2p Samsung 21700 40T battery. I’m essentially making my own Meepo ER battery. Unfortunately I don’t have a spot welder, and I don’t want to damage the cells with a soldering iron. Can I use this conductive glue instead?
If I can’t, can I just tape the contacts tightly with heat resistant tape and heat shrink it to hold them together?
Also, do you have any other tips or advice? Warnings?
I wouldn’t do this. The batteries are under crazy forces in the enclosure, and poorly welded packs (ones which would probably have greater connecting strength than your glue) have shown themselves as a danger to esk8ers.
Be safe, and go with what works. An alternative method would be NESE modules or another style of them (if you’re really against spot welding)
This would work i swear i remember someone building a battery pack with this but its stupid expensive.
I think it was almost the same cost in epoxy as it was batteries for the guy i remember doing it. Couldn’t find the thread tho supposedly it works fine, but he said he’d never do it again cause it was a pain in the ass.
0.001 ohms per cm of resistivity is manageable in this kind of application.
Still not worth it IMO and I wouldn’t recommend this way to anyone.
Imo, there will be 3 problems; 1) mechanical connection strenght (think about vibrations during ride) 2) electrical contact resistance 3)fast ageing of the material… But, why not to try it on a small pack… Since the head of the battery is smooth, better to sand it a bit to increase mechanical bonding strenght of the surface