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2002 BMW 325i Electric
42 Posts
Discussion Starter · #1 ·
Hey everyone!

I am currently working on a conversion and spotted these packs for sale on eBay. Now I know the dollar per kilowatt isn't that great on these, but I am trying to keep the costs low, so I plan to start out with a few of these for a proof of concept and then upgrade down the road.

My question is, how would I go about charging these? They're an odd voltage, 40v, most chargers for lithium batteries are 36 or 48. I don't want to undercharge or overcharge, as I know that is a huge risk with lithium, so what's the best method to proceed? I plan to get 3 or 4 of the modules, I just want to understand what the process is to get them charged up.

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