Have a lower rate of self-discharge will still require a battery charger to maintain the battery's charge during long term storage. Completely sealed require no additional maintenance. Designed to last 2-3X longer than a flooded battery (this often saves money in the long run over a flooded battery). Have a higher upfront cost than a flooded battery. AGM batteries are available as starting, deep cycle or dual purpose RV batteries. Have a high rate of self-discharge will require a battery charger to maintain the battery's charge in storage. Are not completely sealed requires you to regularly top off the electrolyte inside with distilled or deionized water. 
Feature the shortest lifespan of the 3 battery chemistries. Have the lowest upfront cost of the 3 battery chemistries. Flooded batteries are available as starting, deep cycle or dual purpose RV batteries. Here is a breakdown of their differences: Chemistry will determine the cost and performance level you'll get from a battery. In addition to the battery types discussed above, there are also three different battery chemistries available: flooded lead acid, AGM lead acid (short for absorbed glass mat) and lithium iron phosphate. What are the Differences Between Flooded, AGM and Lithium RV Batteries? Most RVs will require two different batteries, one to start the engine and one to power everything else.įor Low Power Needs - If you have a minimal amount of applications onboard, you may be able to get away with using a single dual purpose battery to power everything.įor Moderate to Heavy Power Needs - Use a starting battery to turn over your engine and a deep cycle battery as your "house" battery.įor Heavy Power Needs - Using a dual purpose battery together with a deep cycle battery will give you additional cycling power for a larger number of onboard applications. How Many Batteries Should I Have in My RV? Dual purpose batteries are capable of providing the initial burst of power needed to start an engine, while also delivering the cycling power necessary to run appliances and other interior accessories. Deep cycle batteries serve as the "house" battery on RVs, powering things like interior lights, clocks, TVs and refrigerators.ĭual Purpose Batteries- Function as both a starting and deep cycle battery in one. They function similarly to the battery in your car or truck.ĭeep Cycle Batteries (also known as cycling batteries) - Provide a continuous source of power over a longer period of time. 
Starting Batteries (also known as cranking batteries) - Designed to deliver short bursts of power necessary to start your RV's engine. There are three basic types of RV batteries: What are the Three Types of RV Batteries? We'll explain the different battery types and chemistries available to RV owners and provide some recommendations for the top-performing RV batteries in each category.
This blog will help walk you through RV battery basics.
TYPES OF RV BATTERIES PLUS
Batteries Plus has an impressive selection of RV battery options, but if you can't tell the difference between a flooded starting battery and an AGM deep cycle battery, it's easy to feel overwhelmed. Shopping for RV batteries can get pretty complicated.
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