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Trolling motors are standard equipment on fishing boats. They provide the angler with maneuverability that would not be possible using a gasoline powered motor. Using a 24-volt, 2-battery system provides the boater with more thrust than just a 12-volt system. In order to create a 24-volt system, two 12-volt batteries are wired together in series. Wiring two batteries in series doubles the voltage output. All makes and models of 24-volt trolling motors wire the batteries together in series in exactly the same manner.
Items you will need
2 batteries, 12-volt
Jumper wire (provided by manufacturer)
Take the jumper and place the ring connector onto the negative terminal of the first battery and tighten the wing nut.
Connect the ring terminal of the other end of the jumper lead to battery number 2 and tighten the wing nut over it.
Place the ring connector of the white trolling motor batter wire (+) over the positive terminal of battery number 1 and tighten the wing nut.
Place the ring connector of the black trolling motor batter wire (-) over the negative terminal of battery number two and tighten the wing nut.