Q&A for How to Charge Your RV Battery

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Question

If I have a car battery running my camper through a generator, how can I charge it?

Community Answer

You can charge your batteries by plugging your camper into a household 120-volt electric outlet at home or a campground.

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Question

My battery is not charging from the alternator. What can I do?

Community Answer

Test your alternator to be sure it is putting out 12-14V. If it is, check your battery -- it may have bad cells and be unable to accept a full charge. Also, check your cables to and from the battery for any corrosion, as this is a sign of a bad connection. Check all grounds thoroughly -- this is the leading cause of most shorts.

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Question

Are the two batteries in my Winnebago connected in parallel or series? The vehicle is a class C 2013.

Community Answer

Positive to positive, negative to negative is parallel; series is negative to positive, negative to positive. Parallel will not double your volts but will double your amps; series will double your volts and not your amps.

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Question

How can I know which battery cable is positive or negative if both have came out of the converter?

Community Answer

One of them should have a red end on it, if not you need to mark it yourself. Where the cables connect to the converter you will see a "+" sign above or below the connection and a "-" on the other end.

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Question

Why would the main car battery stop working after using my RV?

Community Answer

Because there is no battery isolator to protect your auto battery from depleting.

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Question

How do I get the fault light to go out? Will my 50 amp hookup charge the battery?

Community Answer

I would think it should. The inverter should charge the batteries once the 50 amp hookup is connected.

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Question

Can I charge an RV battery while it’s connect at an RV site?

Community Answer

It should recharge itself while you are plugged in at the site. If it doesn't, then check for corrosion of the charging cables or points.

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Question

Will my Coach batteries charge while driving down the road?

Community Answer

Yes. Just like a car battery, your Coach batteries will be charged by your alternator.

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