I'm terrible at explaining so bear with me here, thanks.
I built x4 lifepo4 105ah 12v batteries (already top balanced).
Each battery has a 100amp 4S BMS.
The four batteries will be wired in parallel to make a 12v 420Ah battery.
Those four batteries will then run to a positive and negnative main terminal.
Here's where my confusion starts.
As I understand, the C- wires on the BMS (two 10 gauge wires per BMS) will connect directly to the main negative battery terminal. Is this correct?
If that is correct, will the positive cable to the positive terminal need the same or similar resistance as the negative side (B-/C- bms wires, bus bar, bms)? Does this even matter?
I will wire all four batteries in parallel with 2/0 cable in a manner which draws current equally. It's what happens after that... getting my bank to one main positive and negative battery terminal in a way that will keep a balanced draw safely.
I built x4 lifepo4 105ah 12v batteries (already top balanced).
Each battery has a 100amp 4S BMS.
The four batteries will be wired in parallel to make a 12v 420Ah battery.
Those four batteries will then run to a positive and negnative main terminal.
Here's where my confusion starts.
As I understand, the C- wires on the BMS (two 10 gauge wires per BMS) will connect directly to the main negative battery terminal. Is this correct?
If that is correct, will the positive cable to the positive terminal need the same or similar resistance as the negative side (B-/C- bms wires, bus bar, bms)? Does this even matter?
I will wire all four batteries in parallel with 2/0 cable in a manner which draws current equally. It's what happens after that... getting my bank to one main positive and negative battery terminal in a way that will keep a balanced draw safely.
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