My first battery pack just exploded. Twice.
Finished building it last night and left it outside next to my grill (thank god). Dang thing just detonated. Looks like once cell went. Then a few min later, another one blew.
These are cheap Ultrafire (what a terrible name) cells that I picked up on the cheap for learning how to spot weld, assemble etc. It was a 10s6p pack. Not sure what went wrong. I checked voltage last night and was reading ~40v.
Not sure what to think. Should I continue down this path or switch to lipos? Is this just a function of these terrible starter batteries?
Regardless… buyer beware of these cheap cells. I’ll be looking for a disposal site for them.