What batteries are you using?

[alter]

Gonna need solid copper bus bars, There are some tear down videos on youtube that turn the 40v packs into 12v packs and you can see how they attached all the cells.
View attachment 726

https://photos.app.goo.gl/w16oHtucerS9eLi97 <-- bms

Let me know if you want some more info

 

[alex2]

Looking forward to seeing how this works out...

 

[AlexLTDLX]

I'm in Texas right now, so I don't have to exact size(s) available, but there's a size of pvs electrical conduit that those cells fit in perfectly, and there's a tap size that happens to fit into that conduit perfectly - which I bought (because of course I did). That makes making very high current "modules" pretty easy - you'd just need to drill holes for flat plates to go between the cells for balancing, but since they'd be flat and have a large contact area, I don't see any issues with that.

Just a thought...

 

[DrTal]

I'm diving into batteries that can be used for this project. Anyone try using 46160 22ah cells in their project?.

 

[WB projects]

No butI see they are at 10c 22ah. I personally use lifepo4 12s1p 20ah 20c and it was not enough. Maybe 12s3p would have been enough! Keep that in mind

 

[j91z28]

we ended up with a few of these at the shop but I can't find any good info on them. the numbers don't Google haha. I know they are 1s lifepo4 cells but was wondering about capacity and C rating.

figured this might be the place to ask. I've only got 8 so not much use for a e charger. but might make a good car battery with the right bms.