I’m looking at a couple different layouts for a 2P8S 280Ah (x2) LiFePO4 battery.
I can avoid any crossing busbars (2/0 wire with lugs) with busbar lengths of ~150mm.
If I cross the busbars (wires) joining pairs of parallel cells, I can reduce the internal busbar length by ~20% (120mm).
The crossed-busbar layout also allows me to get away with shorter BMS sense leads.
So is there any reason that crossing 2 2/0AWG busbars within the internal battery wiring is a no-no? Is that a worthwhile compromise / complexity to accept in exchange for busbar lengths / resistances that are 20% shorter / more conductive?
A diagram of both the no-crossings layout and the crossing-minimum-length-wires is attached below:
I can avoid any crossing busbars (2/0 wire with lugs) with busbar lengths of ~150mm.
If I cross the busbars (wires) joining pairs of parallel cells, I can reduce the internal busbar length by ~20% (120mm).
The crossed-busbar layout also allows me to get away with shorter BMS sense leads.
So is there any reason that crossing 2 2/0AWG busbars within the internal battery wiring is a no-no? Is that a worthwhile compromise / complexity to accept in exchange for busbar lengths / resistances that are 20% shorter / more conductive?
A diagram of both the no-crossings layout and the crossing-minimum-length-wires is attached below:
