Two 12 Volt Batteries To Make 24 Volts

James S. Longwood

Two or more 12 volt batteries wired in seriesthe positive terminal of one. This is a common application needed to supply power to a trolling motor requiring 24 volts.

Battery Wiring

Battery Wiring

Two 12 volt batteries to make 24 volts. For example a boat may have a 12 volt starter for the main engine and a 24 volt trolling motor. Learn how to connect two 12 volt batteries to make one 24 volt battery unit. You now have two batteries connected in series. Connect the other end to the negative terminal of the second 12 volt battery. Connect one battery cable to the positive terminal of one of your 12 volt batteries. Two or more 12 volt batteries wired in parallelpositive to positive negative to negativeis still a 12 volt system.

Use 12 volt batteries to run a 12 volt and 24 volt devices. By wiring a pair of 12 volt batteries in series you can use the same batteries to perform two different tasks. How to make a 12 volt battery 24 volts. Some larger trolling motors will require 36 volts by connecting together 3 deep cycle 12 volt batteries in series. Similar to flashlight batteries.

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