12 Volt Battery Meter Gauge Wiring Diagram. By margaret byrd october 28 2020. Attach the 18 gauge wire onto the top of the gauges sender.
Which i have a how to on that as well. 138 volts is a better value to use for wire gauge. The actual resting voltage of a fully charged 6 cell automotive lead acid battery is about 127 volts or about 21 volts per cell.
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Attach the 18 gauge wire onto the top of the gauges sender. Do not over tighten. So being they will display that voltage or less. If the meter reads 48 volts it will read full charge.