4/0 awg to fuse & inverter.
1 awg all around bank.
Inverter wired to corners. 4/0 takes 100%, 1 awg takes 75%, 1 awg takes 50%, 1 awg takes 25%
No need to make any wires larger.
You could add two more 1 awg cables and change wiring so all batteries get exactly same cable length in series. That will better match discharge across all four batteries, especially at higher current. It will also reduce highest current in 1 awg to 50%
Thanks.I like the idea of more evenly distributing energy and 'wear'.
Does this cable arrangement maintain the bank as 12v & 400ah?
Doubling up on wiring and fusing confuse me. If the fuse for the wire size is 200 amps, do you half that for each wire, or do you go with a 200 amp fuse on each wire?
My gut tells me if both wires are the same its 100. If the wires are different its probably ratios and proportions.
Very late entry on this but in the schematic, two of the battery wires are longer that the other four. Is that just a result of the drawing, and they're actually all matched in length? Or is there a length difference? (I suspect not.)If your batteries are in parallel, the wires between them carry less so no need for larger wires.
But you should design the interconnect scheme so all get exactly matched IR drop, charge and discharge identically.
Something like this:
View attachment 23763
Very late entry on this but in the schematic, two of the battery wires are longer that the other four. Is that just a result of the drawing, and they're actually all matched in length? Or is there a length difference? (I suspect not.)
What is the configuration of one only has 3 batteries instead of four?If your batteries are in parallel, the wires between them carry less so no need for larger wires.
But you should design the interconnect scheme so all get exactly matched IR drop, charge and discharge identically.
Something like this:
View attachment 23763