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The batteries need to be wired in a series configuration. Wire the negative of the first battery to the positive of the second battery, and the negative of the second to the positive to the third. If the batteries were placed in a straight line they will look like train cars, with all positive ends of the batteries pointing in the same direction. The batteries voltages are now added together for three 12 volt batteries making 36 volts.

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Q: How do you wire three 12 volt batteries to get 36 volts?
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How do you wire three 12 volt batteries to make 36 volts?

wire it in series


How do you wire 3 batteries to get 24 volts?

Connect three 12 volt batteries in series. You will triple the amperage but the volts will remain at 12. Click the link


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Will wiring 2 batteries in series hurt your boat?

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How do you wire 3 12 volt batteries to get 24 volts how to connect the wire?

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