Bought a 12s4p battery from bimmer about a year and a half ago from esk8builders forum. After the first one he sent me short circuited in the mail, the second one seemed fine. A couple months pass and the battery stops working. I open it up and spot welds are falling apart, and half the batteries are corroded.
Looking to buy a new battery! Single stacked and any size. If you can build a battery for me, I can send you the (few) working 30q cells from my last battery.
I wouldn’t recommended mixing old and new cells as overtime cells lose there capacity and when useing old cells and new cells the newer ones will try to compensate for the older ones and it may cause them to overheat.
Shoot me a PM with the layout you want; cell options, enclosure/deck used, and if you want a specific BMS. I’ll quote you cost/time, but I’m out a bit on time at the moment so you’re aware.
I got a 12s4p torqueboard battery that comes with a charger and lcd screen i would sell for 260$, also with an enclosure. It has around 800 miles on it but it’s still running strong.