Attach the positive and negative terminals from each battery together. Connect a wire from the negative terminal on the second battery to the positive terminal on the third battery.
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How to hook up 2 12 volt batteries. Connect one of the battery cables to the positive terminal on battery number one. For my trolling motor i can troll for 5 hours. Connect the positive terminal of one battery to the negative terminal of the other. There are two ways to wire up two batteries. Create a 450 amp hour 12 volt battery bank with four 6 volt batteries demonstrated in the video using four 6 volt 225 amp hours batteries wire the first pair of batteries a1 and a2 in series to output 12 volts at 225 amp hours wire the second pair of batteries b1 and b2 in series to output an additional 12 volts at 225 amp hours. There will be 24 volts about 28 volts with an alternator if two 12 volt batteries are wired together in series.
This video is a quick video on how to connect two 12 volt batteries. Repeat the process to add a third battery. Connecting two batteries will double the life of a battery when in use. How to wire two 12 volt batteries together. Make a series connection to the two 12 volt batteries. In parallel the voltage stays the same and in series it is doubled.
If two 15 volt batteries were connected together the multimeter would show 3 volts. One way doubles the volts of the two batteries and the other keeps the same amount of volts.
Gallery of How To Hook Up 2 12 Volt Batteries
