Wrecked ones show up on a regular basis around here, I think you could get one for 5-6K USD.
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Oh ok
thanks. No, I didn't know that. I just Googled him and found some of his videos, I appreciate it. I'll watch some of them and see what I can pick up. BTW - I'm guessing the controller chip is the hardware on the controller? Would that enable someone to use the i3's controller in their EV? I'm pretty new to this stuff.
DIY BMW i3 Controller (see here)Oh ok
I sold 3 of the modules to someone for a golf cart conversion.
He works as a shuttle bringing people from events to their cars.
He said he got 30 mile range on a full charge carrying up to 6 people back and forth.
To answer some of your battery questions, the cells are Samsung SDI 64Ah cells. They are assembled into 12s modules by Bosch. Total of 8 modules. The bus bars are laser welded on, so it would be tough to rearrange any of the cells. They each have their own BMS that gets daisy chained.
They have both heating and cooling integrated beneath the pack.
AC lines run the length of the pack, coming into contact with the base of each cell. When the pack is hot, a valve opens up letting the Freon flow through the pack to cool it.
Between the AC lines and cells, is a resistive heater. It uses the high voltage of the battery to warm up the cells.
Ive attached a picture of what the AC lines look like. They are from a smaller battery that only has cooling, no heater. But its the same idea.
Here are some pictures and info about the module.
https://www.ebay.com/itm/48V-63Ah-B...ash=item33dad1f7e7:g:TqcAAOSwnCFaBiOD&vxp=mtr
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