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Assuming neither battery is used to start the engine, simply connect the positive (+) terminal of the first battery to the positive terminal of the second battery. Then connect the negative (-) terminal of the first battery to the negative terminal of the second battery. Connect the load circuit to the positive and negative terminals of one of the batteries as usual.

You may want to charge the batteries separately before making the connection, since connecting a charged battery to a discharged battery will result in a very large current flowing from the charged battery to the discharged battery, possibly damaging the wiring or either battery.

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Q: How do you connect two deep cycle 12-volt batteries in parallel to an RV?
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How do you place charging leads to two 6 volt deep cycle batteries that are in series?

If the charger is a 12 volt DC machine, connect the leads to the two battery terminals that the load is taken from. Take care to note the polarity of the leads to the polarity of the battery terminals. There will be a short jumper cable between the two six volt batteries. The charger leads go on the opposite terminals of the two batteries that the jumper is connected to.


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Can I replace three 8 volt batteries with two 12 volt deep cycle marine batteries in golf cart.?

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Related questions

Can a diagram for two 12V deep cycle motor home batteries connected to output 12V be supplied?

You just connect them in Parallel. Two 12 volt batteries connected in parallel will output 12 volts. Two connected in Series will output 24 volts. Just connect the negative terminal on the first battery to the negative on the second battery. Then connect the positive terminal on first battery to the positive on the second battery. Connect the cables to the second battery, positive to positive and negative to negative. Click the link for a diagram.


How do you connect two deep cycle 12 volt batteries in parallel to an RV?

First off you must have the same type batteries. Connect the positive post of the first battery to the positive post of the second battery. Then connect the negative post of the first battery to the negative post of the second battery. Now connect the positive post of the first battery to the positive connection on the vehicle. Then connect the negative post of the first battery to the negative cable of the vehicle. Click the link for a diagram.


How do you use 6 deep cycle batteries to make one 36 volt battery?

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Can 3 each 12 volt deep cycle batteries from Walmart be used in lieu of 6 each 6 volt deep cycle batteries like Trojon in a 1981 Club Car golf cart with the proper reconnections?

It seems reasonable providing your purchased batteries with enough current capacity and connect them in series.


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Yes if they are connected in parallel but I would not recommend it. Just charge them one at a time.


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For Australian made deep cycle batteries, try the related links.


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How do you equalize deep cycle batteries?

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