So I'm looking to setup a bank of 16850s to push 2 P7s on my bicycle. I don't feel like spending big $$ on a battery space pack (though they look nice). I know I am taking some risk without a dedicated protection PCB but its still what I plan to do. The cells are individually protected and I'll ensure that when first installed, they will have identical charges as to prevent voltage balancing currents causing trouble. I'll also avoid charging it unattended on my pile of dried hay.
After deciding not to solder the 6-8 batteries together (which was tough since I'm almost a soldering enthusiast) I figured I'd need some other way to do this. All batteries will be in parallel. For some reason you can't buy an 18650 battery holder, it seems like a useful item to me
Anyhow, I need a way to set this up. The big thing I'm having trouble with is how to get the contacts to reliably engage some kind of connector. I'm reasonably inclined in terms of building things and have plenty of tools so that gives me more possibilities. I'd like something I can mount to my bike with velcro fairly easily as well, I was thinking some kind of tube with end caps complete with conductors but wasn't entirely sure what would reliably grip the batteries.
Wiring is easy enough, I'm connecting some 14 gauge speaker wire with power pole disconnects which will allow me to charge the pack while still on the bike.
Anyone here have any ideas?