Friday, May 27, 2022

[electricboats] Another LifePo4 build question

My questions are similar to Skray775 (LifePo4 build questions), but I didn't want to hijack his thread.

I'm repowering a 45' sailboat with a 25kw electric motor from thunderstruck-ev.com. I'm using their water-cooled ME1616. Per their advice, I will use a 96v system.

I'm looking at the EVE Prismatic Cell batteries from Docan Power. It's a Chinese company, and the reviews are good.
https://www.docanpower.com/index.php?route=product/product&path=59_255_256&product_id=462

I will need to use 32 cells, and they are rated at 280 Ah. Charge/discharge rates: .5C/1C. I will not be exceeding 250 amps, and will probably run at about 100-150 amps.

I plan to have three ways to charge the cells:
1. Shore power battery charger
2. Four 24v solar panels
3. Diesel generator. The generator has four 24v alternators.

So, I would also like to know if it is feasible to use four BMS', since I'll have essentially four charge sources with either my solar panels or generator. From the other thread, I'm not sure what the consensus is.

I haven't found many 96v BMS' for sale...

Thanks in advance!
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