Best Rv Battery – Do NOT Buy Before Reading This!

You’re probably wondering, are car batteries the same as RV batteries? All RV’s need a set of “house” batteries that power the 12 volt needs, as well as a starting battery meant to power the engine. House batteries may be comprised of several batteries wired together whereas the engine battery is just the same as car batteries, except larger. Before rounding up the best RV batteries in the market, let’s first learn the differences between house and starting batteries.

First and foremost, house batteries are designed to provide energy over long stretches of time while engine or starting batteries offer quick bursts of energy aimed at getting the engine going. Here’s a good comparison: if the house battery is a marathon, the engine battery is a 100-meter dash.


RV House Batteries​

RV house batteries are designed for low power and go through “deep-cycling”. These batteries are usually fully-discharged before they get recharged again.

The best deep-cycle batteries may perform better than engine batteries and may last up to four times longer than standard engine batteries under the same conditions.

Users can rate house batteries according to its AH (Amp-Hours) battery capacity which tells the total number of power the battery can deliver over a 20-hour time frame. The bigger the AH, the more powerful the battery is.​

RV Starting Batteries​

The battery used to start the engine is known as chassis battery or a starting battery. These batteries supply significant amounts of starting currents for short periods. They possess numerous thin plates for maximizing the plate area that is exposed to the electrolyte, resulting in the production of large currents in short bursts.

Starting batteries have a Cold Cranking Amps (CCA) rating. CCA denotes the number of amps a single battery can deliver under a temperature of 0 degrees F for 30 seconds, provided that the amp rating should not drop below 7.2 volts. Starting batteries should not be used for deep cycle applications.

Marine Batteries​

There are deep-cycling house batteries, there are starting batteries, then there are marine batteries. Marine batteries are the result of an attempt to mix the characteristics of starting and deep-cycling batteries.

Actually, marine batteries aren’t great as a whole or for either purpose, yet they’re less expensive, and they may be suitable for some situations. They have a lower CCA rating and a greater deep cycle.

RV Battery Technology​

Currently, all RV batteries employ lead-acid technology. However, there are different lead-acid battery packages.

First, we have the flooded cell battery wherein the cell is soaked in an electrolyte solution which diminishes as you use it, requiring the addition of water from time to time.

On the other hand, AGM (Absorbed Glass Mat) batteries are designed to minimize the loss of the electrolyte solution through effective sealing and utilizing sponges made of glass fibers.

We also have the gel type batteries which rely on thick electrolyte pastes and are also sealed firmly like the AGM.

What Type Of RV Battery Should I Use?​

What Type Of RV Battery Should I Use

Your RVing style will determine the battery type you need for your motorhome.

If you have a simple style of looking for a campground then setting up electricity and such, a marine battery will do fine. They’re cheap, and they last quite longer than starting batteries.

On the other hand, if you go through terrains and has a rough camping style, you’ll need a battery with a large capacity such as a good deep-cycling battery. These batteries may run up to 4 to 10 years and costs twice as that of marine batteries.

There’s the 6-volt, golf car battery which is a popular kind of house battery. They are rugged, long lasting, and two sets of it can be wired together to form a 12V source. A 12V power supply is ideal for various household appliances and amenities found in an RV.

Engine-starting batteries are the cheapest 12V batteries available in the market, but they’re not as long lasting as deep-cycling house batteries.

Product Reviews: Our Top 5 Picks For The Best RV Batteries Of 2018

Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery

Designed as a dual purpose battery, the Optima D34M BlueTop functions both as a starting and deep cycle battery. Outdoor enthusiasts looking for a sure-starting and maintenance-free 12V battery for their motorhomes or boats can rely on this terrific power source even in harsh conditions.

It boasts a unique SpiralCell design with the formation of continuous lead plates to maintain optimum performance. Consequently, the design provides a strong, clean, and safe power source for you and the environment.

This battery model has a high reserve capacity (about 120 mins) and optimal starting power, offering a longer shelf-life and sufficient power when and where you need it – even in bad weather!

With regards to vibration resistance, this one tops the list. Vibration from trolling motors and moving RVs and other vehicles can damage a battery, but this one is 15 times more resistant to vibration than other marine batteries.

Additionally, the battery offers a faster recharge time so you can spend less time worrying about your power and more time for fun.


  • Lightweight
  • Functions both as a starting and deep-cycle battery
  • Recharges fast
  • Has a high reserve capacity
  • Starts even in bad weather
  • Long-lasting


  • Comes in a faulty packaging (the battery isn’t well-protected by the packaging)
Universal UB121000-45978 12v 100AH Deep Cycle AGM Battery 12V 24V 48V(Black)

This AGM battery for electrical motors yields an excellent deep-cycle performance rating that can crank a high voltage of up to 13.6 to 13.8 V. Moreover, this multipurpose power source can be used on your boat, motorhome, scooter, golf cart, wheelchairs, and other gadgets.

The AGM technology allows the battery to be mounted in any position and be shock and vibration-resistant. Interestingly, its performance can be regulated by a valve.

We ordered six of these to be installed on our boat for our wayfaring around the Central American coast and we’re quite satisfied with it so far. They were in great shape when we received them, and all 6 batteries had a measured voltage of 12.89 which was very impressive.

After a week of running, the refrigerator, WiFi, LED lightings, and a 12V rainwater pressure pump, the voltage had only dropped from 12.89 to 12.6, which is very negligible by the way. Considering that we also have 5 panels totalling 650 watts running that time to maximize the solar radiation, we were very impressed with this battery’s longevity.

Our only suggestion for the manufacturer of this battery is to make the stainless hardware to be about 1/2" longer. It is about 1" long and can accommodate 2 connections per terminal but any more or thick terminals, you run out of thread.


  • Lightweight
  • Versatile
  • Recharges fast
  • Starts even in bad weather
  • Long-lasting.


  • The stainless steel hardware is too short for additional connections
ExpertPower 12v 33ah Rechargeable Deep Cycle Battery [EXP12330] Replaces 34Ah, 35Ah, 36Ah

ExpertPower’s Deep-Cycle Battery is one of the most efficient batteries out there, whether you’re using it for security purposes or the mobility of your machine.

It’s a 12V lead-acid battery with a 10-hr deep-cycle utilizing the AGM technology which makes it run efficiently even under adverse weather conditions or extreme temperatures.

Moreover, it’s user-friendly in the sense that it’s easy to install and operate. It also doesn’t require any maintenance and is valve-regulated. It’ll get your equipment or device running in no time at all!

We’re in love with the versatility of this power source – you can use it for home alarm systems, lightning devices, general electronics, medical equipment, scooters, solar panels, and much more. Its applications are virtually endless!

Upon receiving this battery in the mail, the first thing that caught our attention is its durable casing. Since it is patterned after the AGM technology, the acid is sandwiched between plates that are immobilized by fiberglass.

The spill-proof built, along with the valve regulator, ensures that the battery will be leak-free even if you invert it or put it in any position you desire.

To test out its effectivity, we bought two of these; one for the canoe and one for the scooter. The battery we attached to the power trolling motor of our 15 ft canoe caused the canoe to move pretty quick on full speed, and it lasted for about 6 hours.

As for the scooter, we were shocked at the increase in power the scooter had, not realizing that the old batteries weren't performing to capacity.


  • Lightweight
  • Very versatile
  • Has a sturdy built
  • Starts even in bad weather.


  • The battery doesn’t last that long as compared to other lead-acid batteries.
WindyNation 12V 100 Amp-Hour (240 Minute Reserve Capacity) AGM SLA Deep Cycle VRLA Battery RV, Solar, Wind, Marine, Off - Grid

When it comes to reserve capacity efficiency, WindyNation’s AGM battery tops the list. It has a 240-min reserve capacity (100 AH) which simply means that the battery can maintain a useful voltage for 240 mins under a 25-amp discharge.

In essence, the higher the capacity, the greater the battery’s ability to run electronics and devices on the RV.

It also contains 99.995% pure lead which consequently yields a low discharge rate, making lead float inside and power the battery up for as long as 10-12 years, at 25 degrees Celsius.

Aside from powering the RV, users can also utilize this battery for solar panels, UPS, boats, offshore marine power, telecommunications, and other portable tools.

We tried this battery and hooked it up to our three solar panels. So far, it gave us plenty of power to run lights and everything we need at night without powering the generator.

Moreover, it worked fine as a replacement battery for our back-up sump pump. It's fully compatible with the sump pump AGM battery charger and control system, making it a perfect fit.

We only have one complaint about this model. The battery is prone to breakage because the threads are coated in brass, but the core is some cheap, brittle filler, which breaks quickly.


  • Lightweight
  • Versatile
  • Has a sturdy built
  • Has a large reserve capacity
  • Starts even in bad weather
  • Long-lasting.


  • The threads and core should be made of a more durable material than brass.
Sealed Lead Acid (AGM) Deep Cycle Battery - DCM0035 replacement battery

Weighing at just 23 pounds and featuring a compact body, the Interstate DCM0035 might be one of the best portable battery options for trolling motors available. Though it’s light and compact, it packs enough power to run a trolling motor for several hours of continuous usage.

Aside from its compact form and lightweight factor, this little power source has a few other advantages. It features a thick exterior made of plastic which keeps it protected from bumps, intense vibrations, and other untoward accidents without affecting its performance.

The battery also mounts easily at any angle, thanks to the AGM technology. The AGM technology also ensures that the battery will charge faster as compared to regular lead acid cells and it also does not require any maintenance, as a typical lead acid battery would.

However, potential users should note that this battery won’t work for golf carts and won’t give off power as a large-capacity battery would.


  • Lightweight
  • Compact
  • Has a sturdy built
  • Recharges fast
  • Starts even in bad weather


  • The battery doesn’t last that long as compared to other lead-acid batteries
  • Not very versatile
  • Doesn’t have a large capacity.

The Verdict

After a long and extensive deliberation, we came up with the Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery as our top pick for the best RV battery.

Since it’s designed to function both as a starting and deep cycle battery, it automatically eliminates the need to choose either of the two. Also, it offers terrific power, is vibration-resistant, has a high reserve capacity, is sure-starting even in extreme conditions, and is maintenance-free.

It boasts a unique SpiralCell design with the formation of continuous lead plates to maintain optimum performance. Consequently, the design provides a strong, clean, and safe power source for you and the environment.

Hey, camper! What’s up? What battery do you use to power your RV up? Do you think we missed some great options in our roundup list? Do comment your thoughts and suggestions below! Don’t forget to share this post too. Cheers!​

Best Rv Battery – Do NOT Buy Before Reading This!
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