Motorized RVs have different requirements for different types of batteries. They need a starting battery, similar to your automobile to start the engine and supply power to the 12-volt DC automotive system and a deep cycle battery(s) for the coach's 12-volt DC electrical system. The house or coach batteries, as they are commonly called, need to be true deep cycle batteries that are designed to provide a steady amount of current over a long period of time. Starting batteries and marine batteries should not be used in this application. True deep cycle batteries have much thicker plates and are designed to be deeply discharged and recharged over and over again.
Many towable and motorized RVs use a single deep cycle battery. Deep cycle batteries are rated in amp hours. How many amps the battery can deliver for how many hours before the battery is discharged. If you enjoy dry-camping, without utility hook-ups, you depend on your deep cycle battery(s) to take care of your 12-volt needs. You can purchase a deep cycle battery with a higher amp hour capacity that will last longer. The higher the amp hour capacity is the larger and heavier the battery is. If you have room for a larger battery and enjoy dry-camping you may want to upgrade your deep cycle battery to one with a higher amp hour rating. If your RV came equipped with a RV/Marine battery I suggest you upgrade to a true deep cycle battery.
Watch my video below for helpful RV battery tips to extend the life of your deep cycle RV batteries:
Watch my video below for helpful RV battery tips to extend the life of your deep cycle RV batteries:
Happy RV Learning!
Mark Polk
RV Education 101
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