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24V system with 12 X 3.2V cells?

MarcPLUStruck

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Jun 17, 2021
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is it possible to wire a 24V system using 12 cells at 3.2V each. I'm having a hard time because I could use 2 X12V 4s bms in series, but then I still have 4 cells left over that I don't know how to integrate into the batteries while keeping everything balanced.... the 24v bms is a 8s system and comes with the same issues.....HELP! (I want to use all the cells because 8 cells have enough wh at the end of the day)






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No. 12V requires 4 cells, 24V requires 8 cells. If you had 16 cells you could make a 2p8s with two cells in parallel (not suggested for Bulk Cells).
FYI, 3.2V cell nominal voltage X 8 cells X 280AH = 3.2x8x280= 7160Wh or 7.16kWh
 
Hi, I have a question. I have 8 lifepo4 cells and they each have 40ah. How may I connect them all to increase voltage and amps?
I cannot find a diagram for them. I'm new to solar.
 
Hi, I have a question. I have 8 lifepo4 cells and they each have 40ah. How may I connect them all to increase voltage and amps?
I cannot find a diagram for them. I'm new to solar.
Series connection of 3.2V x 8 = 25.6V, the Ah will be 40Ah, power capacity is 25.6V x 40Ah = 1024Wh.
Parallel connection the Voltage will be 3.2V, current will be 40Ah x 8 = 320Ah, power capacity is 3.2V x 320Ah = 1024Wh.
Series connection Voltage is added, current stays the same.
Parallel connection Voltage stays the same but Amp is added.
What Voltage and current capability are you trying to accomplish?
 
sorry for the late reply.
I was hoping to obtain exactly that. 25.6V and 320A.
I think I now have the batteries in but I don't know now what type of BMS I would need.

I was following this guide at: 12:30 Min:
 
Everything you need for a good start.
 
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