#Deep cell battery series
( NOTE: We later upgraded to lithium batteries which you can read more about in part four of our post on our lithium-AGM electrical upgrade.)īe aware, though, that RVs can come with either 12V or 6V deep cycle batteries.ĦV batteries (commonly referred to as “golf cart batteries”) are a type of deep cycle battery that always come in pairs, wired in series (positive terminal to negative terminal), to make one larger 12V deep cycle battery. This means that our rig came with two pairs of batteries wired in series, (positive-to-negative), to create two larger 12V batteries that were then wired together in parallel to increase the amp-hour capacity of the combined set. Our 43′ Class A RV came with four 6V deep cycle RV batteries. Our rig originally used a bank of deep-cycle batteries, though we later upgraded to lithium. You need that power in a short burst to start an engine, but it’s not what you need for a house battery that needs to provide steady, continuous power. In other words, CCA represents the battery’s ability to provide short, powerful bursts lasting from 1-3 seconds. Should an RV House Battery Have High CCA (Cold Cranking Amps)?ĬCA (Cold Cranking Amps) is a measure of a battery’s output capacity for starting an engine. It would also likely become damaged by continuous cycles of deep discharge. So, unless you confirm that you’re getting a deep-cycle marine battery, you could end up with one that doesn’t meet your needs for providing off-grid power for any length of time. It can provide the strong burst of power needed to start an engine as well as provide more long-term power for onboard accessories due to having slightly thicker lead plates.īut, it’s important to know that not all “marine” batteries are necessarily “deep cycle”. Marine batteries can be starting, deep cycle, or dual-purpose batteries.Ī dual-purpose battery is kind of a hybrid between a starting battery and a deep cycle battery. This is important to the process of providing DC power for RV use.
The big difference between deep cycle batteries and other common batteries is the ability of the deep cycle battery to handle multiple cycles of deep discharge. For example, if you have a deep cycle battery rated to provide 100 amp-hours of energy, you don’t want to use more than 50% of that energy, or 50 amp-hours. However, it’s best not to deplete a deep cycle battery below a 50% state of charge. These batteries are constructed using a smaller number of thicker lead plates, giving them greater resistance to damage from many cycles of being drained (reasonably) and recharged.ĭeep cycle batteries can be drained and recharged many times over. Deep Cycle Batteriesĭeep cycle batteries are designed to provide a long, steady supply of power rather than short power surges. So, while they can provide high current, they can’t handle deep discharges without suffering permanent damage and/or dramatically decreased lifespan. Starting batteries are easily damaged by being drained too low. They typically have a larger number of thinner lead plates, allowing them to discharge in a burst and recharge quickly. They provide their maximum power for about one to three seconds. Starting batteries are designed to provide the short but powerful burst of energy required to start an engine and to power the typical small 12V DC loads that a car might have.
Let’s take a look at each of these three battery types, how they work, and the jobs they’re designed to do. The three most common types of RV batteries that are not lithium ion (typically for RV use, Lithium Iron Phosphate) batteries are starting batteries, deep cycle batteries, and marine batteries. What Are the 3 Most Common Types of (Non-Lithium) RV Batteries?
#Deep cell battery free
1) What Are the 3 Most Common Types of (Non-Lithium) RV Batteries?.
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