How to size battery cable for 48v systems?
Sizing of wiring connecting battery banks in parallel (12-24" lengths): planning on 2/0g the lengths are based on 12V. At 48V you can use 4 times the wire length shown in the chart for the same voltage drop. Or put another way, take your wire length, divide by 4, and use that length when looking at the chart to choose the proper wire gauge
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