Mixing LFP4 different manufacturer, bms and cell count

Dadoftheturkeykids · Apr 8, 2024

Hi, I have 4 identical Li-time 12v 200ah plus batteries wired in parallel for my current setup. I also have an SOK 12.8v 206ah just lying around not doing anything.

Can I add the SOK in parallel with my 4
Li-time Batteries?
*All are Lifepo4 chemistry
*All have built-in BMS
*All have near identical resting voltage
*Li-time has 8 cells
*SOK has 4 cells
*Li-time has 200ah
*SOK has 206ah

Thanks

toms · Apr 8, 2024

Yes, it will work fine as long as they are the same chemistry and series cell count.

Dadoftheturkeykids · Apr 8, 2024

toms said:
Yes, it will work fine as long as they are the same chemistry and series cell count.

I'm not sure what you mean by same series cell count. The cutaway picture on li-times site shows 8 cells, and Wills teardown video on the sok shows 4 cells

toms · Apr 9, 2024

I imagine one battery 2P4S (two cells in parallel, connected together four in series), the other is just four in series.

If that is the case then they are OK to parallel as long as the chemistry is the same (eg both LiFePO4)

Dadoftheturkeykids · Apr 9, 2024

toms said:
I imagine one battery 2P4S (two cells in parallel, connected together four in series), the other is just four in series.

If that is the case then they are OK to parallel as long as the chemistry is the same (eg both LiFePO4)

Gotcha, thanks for clarifying

Mixing LFP4 different manufacturer, bms and cell count

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