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RV Doctor: RV Battery Charging

By Gary Bunzer

Safely charging multiple batteries simultaneously.

To have RV Doctor Gary Bunzer help cure what ails your RV, post questions in the comments section. Note that he can only diagnose and offer prescriptions for a select few conditions. Although every effort is made to ensure accuracy, not all responses will apply in every instance. Some situations will require additional inspection or testing. Before following instructions or procedures covered in this video series, you must satisfy yourself that products, equipment, and your personal safety won’t be compromised or jeopardized. When in doubt, work with an RV service facility. The advice offered by the RV Doctor is solely that of Gary Bunzer and not of RM Acquisition, LLC d/b/a Rand McNally. Likewise, products and manufacturers provided as examples don’t signify endorsement by Rand McNally.

  1. Marvin Lee

    I have a Progressive Dinamics converter 9100 with the Charge wizard in my 07 5th wheel. I have 2 6volt batteries in the trailer. It does the 14.4 charge, drops to the 13.6 and then the mantanance charge 13.2. with the jump to the 14.4 as a desulphater in the program.
    Question is, should I pull the power and let the batteries just sit and due a normal discharge over acouple weeks or just leave the power on? Water evaporation is very minumal with this system.
    What say you?
    By the way I have read some of your advise on some matters.
    Thank you.

  2. wayne

    would 4 6volt golf cart batteries be equal or close to the same amps as 3 12volt batteries to be used as house batteries.