I need to add a BMS or multiple BMS's to my LiFePO4 battery bank, and I am a bit confused on which to purchase. I have 16 - 60ah cells in a 12v configuration and I was wondering if anyone knew whether I should attach one 16S 200A BMS, 2 - 8S 100A BMS's, or 4 - 4S 60A BMS's. It seems like multiple BMS's might be less expensive, but performance (and the proper setup) is most important. I appreciate any help or comments on my setup. Thank you in advance!
BMS configuration
- Thread starter Peterock
- Start date
SCClockDr
Solar Enthusiast
Are you arranged 4p4s (1 12V battery) or 4s4p (4 12V batteries)?
SCClockDr
Solar Enthusiast
4p4s would only need a single 4s BMS.
4s4p would need 4 4s BMS's.
That is my noob understanding.
4s4p would need 4 4s BMS's.
That is my noob understanding.
I have 16 separate 3.2v cells in series by 4 and paralleled to equal 12v. So with 16 individual cells, I was wondering if it would be better to buy four 4S BMS's or one 16S BMS. Does it make any difference if I have one, two, or four BMS's? Thank you for your response!
SCClockDr
Solar Enthusiast
Each sense wire expects to see a 3.2 volt increase from the previous cell. That increase stops @ 12V. I suspect connecting the next sense wire to the next call will result in you breathing in the magic smoke.
4 BMS's for your arrangement i'm afraid.
4 BMS's for your arrangement i'm afraid.
SCClockDr
Solar Enthusiast
I recall in one of @Will Prowse battery building videos he recommends joining cells in parallel then combining them in series into a battery.
