Length of cable for series connected batteries
I have 2 rows of 4 6-volt batteries (8 total) to be wired in series for 48 volt. If all eight were in a straight line, cable length would not be an issue as I have same length inter-connect cables for each battery. However, I have to make 2 rows of 4. Is it OK to have a longer (15" vs 12") inter-connect cable to series row 1 to row 2? I can use same length to connect the two rows, but would have to go over battery caps to reach. Really don't want to have to make all new, slightly longer cables or disconnect 1 cable every time water has to be added. I guess what I am really asking is do series connected batteries have to have equal length inter-connects?
4-Risen 320 watt in series/parallel, 8-215ah 6 volt GC2 batteries in series, Exeltech 1100 watt/48 volt inverter, Tristar 45 MPPT controller.
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