5 Of The Best RV Deep Cycle Battery Brands, Ranked

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Typically, car batteries will discharge when a vehicle's engine is started or when electronics like the radio or interior lights are needed while the engine is off, which means the batteries will go a long time before passing their rated number of cycles. That's a good thing because the maximum energy capacity of a battery will take a hit once it's passed that number of cycles. If you're traveling or camping in an RV, you're likely discharging your battery a lot more often, using it to power all sorts of stuff inside your vehicle, especially when the engine is off. That's precisely why your RV should have a deep-cycle battery designed to discharge much more often over its lifespan.

Like anything else, some deep-cycle batteries are built better than others. When shopping for a deep cycle battery for your RV, there are a few factors to consider, like capacity. You'll want to ensure your battery is strong enough to last for your entire trip and then some. If you don't plan to use power-intensive items like your kitchen stove, you could save money and get a smaller battery. You'll also want to consider its shelf life, which is shorter than traditional batteries and can be affected by climate. Another factor is the durability of a battery, as deep-cycle batteries are typically more fragile than traditional batteries. To help decide which is right for you and your RV, here are five of the best brands that sell deep-cycle batteries.

LiTime has many different battery options to choose from, including 12, 24, and 48-volt units, as well as power stations, battery kits, chargers, and accessories like circuit breakers and bus bars. By subscribing to its newsletter, you can also get good deals when items go on sale and find additional discounts (and valuable information). When it comes to batteries, LiTime is a go-to brand.

LiTime's 2V 300Ah LiFePO4 uses eight Automotive Grade LiFePO4 cells and a UL-certified 200A BM, so it's safe, stable, and powerful. It has a solid self-discharge rate and will protect against overcharging and over-discharging, as well as short circuits and power surges. However, it doesn't come cheap, as it retails for $1,100. Its cycle count is deep but wide-ranging and can be anywhere from 4,000 – 15,000, depending on how you use it. It would be helpful if LiTime narrowed that range down, but you're still getting a solid battery even at the lower end of that range.

Interstate is a great brand that produces deep cycle batteries perfect for driving your RV from — as the name suggests — state to state. It sells a variety of batteries for a wide range of vehicle types and has a helpful tool on its website to help you match the right battery with the right vehicle, make, and model. You'll find several options if you search specifically for deep-cycle batteries for an RV. Depending on which one you buy, you'll have a six-month or year warranty. This 12-volt 110 Ah SLA/AGM battery costs $280 on Amazon and has a universal fit, so while it's designed for wheelchairs and scooters, it can be used for RV applications. It weighs around 67 pounds and is recyclable, maintenance-free, and spill-proof.

Despite being relatively lightweight and easy to install, it's not the most durable battery on the market. Also, its small capacity might not be enough for your needs, depending on the types of outings you plan to take with your RV. You may need something bigger and more powerful (and pricier), like the 150 Ah GC12-HCL-UTL. But Interstate is a reliable brand with multiple options, and you count on any batteries sporting its name to be effective at what they do.