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Best 6V RV Battery

If you’re a campervan owner, you know the importance of staying charged. If your battery dies, you’ll be left stranded and unable to enjoy all that nature has to offer. You can’t just buy any old battery though; it needs to be an RV-specific one that is rated for 6 volts.

Choosing the best battery for your campervan can be a difficult decision. There are many factors to consider, including the type of camper you have, how often you use it, and what types of weather conditions you will be camping in. We’ve done all of the research for you so now it’s time to make an informed decision on which RV battery is right for your needs! We have compiled a list of 6V RV Batteries that are known to be durable, hold charge well, and are generally reliable.

What is the Best 6V RV Battery?

To decide on the absolute best 6v RV battery, we have examined dozens of 6v batteries for RV and reviews left by real users who bought and used them. Based on what they genuinely shared and experienced, we have shortlisted the top 5 RV batteries 6v for you to consider, including their most important features, in order for you to make an informed decision.

On top of that, to make it easier for you, we have also compiled a list of critical things and frequently asked questions (FAQs) to consider before purchasing 6v batteries for RV. You can find later further down in the article. So without further ado, here’s introducing the best 6v RV battery.

1. Optima Batteries 6V RedTop Starting Battery

Price: 💲💲💲 (fewer 💲 = cheaper)
Weight: 18.5 Pounds (8.4 kg)
Size: 10 x 8.1 x 3.6 Inches (25.4 x 20.7 x 9.2 cm)
Voltage: 6 Volts
Battery Type: Starting
Battery Cell Composition: AGM
Capacity: 50Ah Ah
Cycles: 25 Amps with Rechargeable Capacity (RC) at 100 Mins
Warranty: 3 Years

See it in your local store:

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Optima is one of the top battery brands in the market, offering good quality, safe, and durable batteries for a wide range of applications. The Optima 6V RedTop is a high-performance starter battery that features the proprietary Spiral Cell Technology that gives the battery high resistance to vibrations. Plus, the robust polypropylene enclosure prevents leaks and allows you to install it in any position. It also has lower maintenance and longer shelf life than conventional wet cell batteries.

The 6V RedTop also has a reserve capacity of 100 minutes and can recharge to 100% in an hour. However, some users have noted that the reserve capacity of the remanufactured batteries sold online reduces quickly over a short time, in contrast to the new ones. On the upside, it is highly resistant to freezing with an 800 CCA while giving you even better performance in hot conditions. This feature makes it an excellent starter battery for that classic car or RV you’ve kept parked for some time.


  • Delivers excellent performance in cold and hot conditions,
  • Fantastic reserve capacity of 100 mins at 25Amps,
  • Heavy duty and leak-proof polypropylene casing,
  • Mountable in any position,
  • The battery comes with a 3-year warranty


  • Will have a short life if you buy remanufactured,
  • It may be small depending on the size of your RV

2. Trojan T-105 6V Deep Cycle Battery

Price: 💲 (fewer 💲 = cheaper)
Weight: 62 Pounds (28.1 kg)
Size: 11.1 x 10.3 x 7.1 Inches (28.1 x 26.2 x 18.1 cm)
Voltage: 6 Volts
Battery Type: Deep-Cycle
Battery Cell Composition: Flooded lead-acid
Capacity: 225Ah Ah
Cycles: 25 Amps with RC at 447 Mins
Warranty: 1.5 Years

See it in your local store:

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Trojan Battery is one of the leading brands manufacturing deep cycle batteries. The Trojan T-105 PLUS is a high-capacity deep cycle battery ideal for off-grid camping with your RV. The 6V batteries are compact and come in four units, with each battery weighing 62 pounds. Additionally, the T-105 PLUS features the proprietary T2 Technology to increase the battery’s capacity and ampere-hours, so you get consistent power for 20 hours on a single charge.

The T-105 is a Flooded Lead-acid battery that is more affordable than other types and requires regular service. However, it also delivers better performance than some AGM models on the market and durability.


  • T2 technology gives it better capacity and performance,
  • Battery cell design makes it more affordable,
  • It has a large capacity for RV camping,
  • It comes in a set of four batteries


  • Snap caps may break off quickly,
  • Requires maintenance

3. Vmaxtanks 6V AGM Battery

Price: 💲💲💲💲 (fewer 💲 = cheaper)
Weight: 72 Pounds (32.7 kg)
Size: 11 x 9.5 x 7.3 Inches (27.9 x 24.1 x 18.5 cm)
Voltage: 6 Volts
Battery Type: Deep-Cycle
Battery Cell Composition: AGM
Capacity: 225Ah Ah
Cycles: 25Amps with RC at 500 Mins
Warranty: 1 Year

See it in your local store:

United States
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The VMAXtanks 6V 225Ah V6-225 is a high-performance deep cycle battery suitable for use as a solar battery and RV house battery among other applications. It features heavy-duty grids made of lead-tin alloys to provide a long service life of 8 – 10 years in float applications. It is also an SLA-AGM battery that is leak-proof, maintenance-free and is mountable in any orientation.

The V6-225 features a nominal voltage of 6V, which may not be sufficient for boondocking and other purposes. However, you can connect two batteries in series to create a 12V 225Ah battery bank that gives you more load and better reserve capacity for your RV applications.


  • High-performance battery for versatile applications,
  • Robust construction for heavy-duty use in any condition,
  • Has a long service life in float service applications,
  • Tolerates several high and deep cycles without degrading


  • Heavy for portability,
  • More expensive than the competition

4. NPP 6V AGM Deep Cycle Rechargeable Battery

Price: 💲💲💲💲💲 (fewer 💲 = cheaper)
Weight: 65 Pounds (29.5 kg)
Size: 10.2 x 9.7 x 6.7 Inches (26 x 24.6 x 16.9 cm)
Voltage: 6 Volts
Battery Type: Deep-Cycle
Battery Cell Composition: AGM
Capacity: 225Ah Ah
Cycles: 750 cycles with 50% DoD
Warranty: 1 Year

See it in your local store:

United States
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NPP Power Company is a specialized manufacturer of lead-acid batteries based in Guangzhou, China. The NPP NP6 AGM deep cycle battery is a 6V battery that comes as a two-pack that you can connect in series to get 12V 225Ah to power your RV. The batteries are considerably cheaper to buy than getting one 12V 225Ah unit from the competition. However, they are also just as heavy despite their compact design.

The NP6 features the AGM battery cell technology that is maintenance-free and comes in a rugged ABS plastic casing that is vibration-resistant and leakproof. It also has a high energy density to power RV refrigerators and other devices while charging with 200W solar panels. On the other hand, the NP6 batteries may have a short service life where some failed in less than a year.


  • High-performance battery for RV camping,
  • Good quality and affordably priced for two units,
  • Decent self-discharge rate at 3% per month,
  • Features a rugged design with non-conductive ABS casing


  • May have a short service life,
  • Heavy for easy portability

5. Mighty Max Battery 6V Battery

Price: 💲💲 (fewer 💲 = cheaper)
Weight: 63.5 Pounds (28.8 kg)
Size: 12.1 x 8.9 x 6.7 Inches (30.6 x 22.7 x 16.9 cm)
Voltage: 6 Volts
Battery Type: Deep-Cycle
Battery Cell Composition: AGM
Capacity: 200Ah Ah
Cycles: 600 cycles with 50% DoD
Warranty: 1 Year

See it in your local store:

United States
United Kingdom

The Mighty Max 6V 200Ah ML200-6 is a heavy-duty deep cycling battery made for a wide variety of applications. It has a nominal capacity of 200Ah with a 10Hr rating which means it has a high discharge rate and deep discharge recovery. Plus, this battery can tolerate more cycles than a C20 battery, which gives it a longer service life and delivers more energy to power your RV camper.

Additionally, the ML200-6 uses heavy-duty lead-calcium-tin alloy grids that enable the battery to have a slow self-discharge rate in storage and improved cyclability due to the tin. It also uses AGM technology with a valve-regulated design that makes it safe to use in enclosed environments and leakproof to mount in any position.


  • Heavy-duty grids provide high power density,
  • Has a slow-self discharge rate for longer shelf life,
  • High recyclability gives it long service life,
  • Maintenance-free with flexible mounting positions


  • Heavy for easy portability,
  • Mounting accessories and wire harness not included

What You Should Know Before Buying Rv Batteries 6V

How To Pick The Best Rv Battery

The type of battery you should pick for your RV depends on several factors such as:

Severe Weather and Cold Conditions — Some batteries are designed to withstand extreme cold temperatures. Gel Batteries are especially good when it comes to that since they are less likely to freeze up if you live in a colder climate or go out in the winter season often. On the other hand, AGM batteries can also work well as a substitute but experience has shown that these may be prone to freezing up in colder temperatures. So if you live in places where it’s extra cold, sticking to Gel Batteries would be the best option for your batteries.

Cost — If money is not an issue, then AGM and Gel batteries can be worth investing in because they are more durable than other types of batteries. They tend to last longer and are less likely to be damaged. However, if you feel that the price is not what you’re willing to pay for, flooded batteries would do just fine and it’s actually cheaper in the long run since they will need regular replacement.

Temperature Changes — Where you live can also determine which type of battery to go with. For instance, if you live in a place where temperatures are consistent throughout the year, then get an AGM or Gel battery. On the other hand, if you’ll be making long drives through hot and cold places (think: summer to winter), Gel batteries would be your best bet since they work well when it comes to dealing with temperature changes.

Usage — There are also batteries that are made specifically for RVs such as Deep Cycle RV Batteries which have been designed to withstand tough environments and heavy use. These batteries are always more expensive than the standard ones but they’ll work better when it comes to powering appliances in your RV.

When it comes to purchasing an RV battery, you should also take note of its power or the number of amps it can generate. The higher the amp rating, the more powerful and expensive it will be.

Best Features To Look Out For In An Rv Battery

RVs have a few different types of battery and the one you need to select for your needs will depend on where and how you intend on using your RV.

The most important RV battery features you should be aware of when selecting your battery are:

The battery size – CCA versus AH. When choosing an RV battery, one of your biggest considerations will be whether to choose a cold cranking amp (CCA) or amp-hour (AH). Most people that own an Rv will choose the CCA batteries as they are cheaper but have less endurance. For example, if you use your motorhome as a camper van for a week holiday then you won’t need lots of power. In this case, it’s best to get yourself a lower CCA battery, A lower CCA rating will mean the battery will last longer and be more economical. On the other hand, if you use your motorhome or camper van for a living it’s best to get yourself a higher CCA battery. For an example if you live in your RV then you would need at least 100 CCA.

Lifespan and durability – Lifespan is one of the most important features to look out for when buying an RV battery. The lifespan of an RV battery will vary depending on how well it is looked after but all batteries have limited lifespans. One way of extending the life span of your battery is by keeping it charged, It’s recommended to keep an RV battery charged at around 12.7-12.9 volts.

The lifespan of the mount and bracket included with the RV battery – In addition to checking for a strong, solid frame of the RV battery, you will also want to take a close look at the mounting bracket. The mounting bracket is an integral part of any battery system. Its tough and durable metal secures your battery firmly in place. Some brackets can be removed from your old one and reused on your new battery with varying degrees of success.

The majority of mounts are constructed from steel and stainless steel designs have been employed as alternatives to the traditional all-steel versions. Steel can corrode over time, which makes it vulnerable to rust, especially when exposed to water or humidity. Stainless steel has been used as an alternative because it does not rust easily and lasts longer than steel variants.

Amperage Hours – You would want to select a battery with the largest amp-hours possible as this will ensure that your battery can perform its job for longer. When choosing an RV battery, it’s useful to know what the difference between Ah and CCA rating mean. Amp-hours is how much energy is stored within each individual RV battery.

RV Batteries For Dry Camping Vs Normal Camping

Dry camping and normal camping are two different types of camping, which have their own requirements. For dry camping, batteries have to be able to charge quickly, hold a charge for long periods of time and tolerate the wide variety of temperatures (often found in desert situations). A deep cycle battery is recommended for this type of camping. Normal campers would just need a power inverter for plugging in an extension cord to hook up items such as microwaves, TVs and radios that require more power.

Brands That Make The Best Rv Batteries

There are many brands that make the best rv batteries. The top companies for batteries are Deka, Dry Charge and Alkaline. All three companies offer great products but they all have their own benefits.

Deka: The Deka AGM battery is a gel-electrolyte battery. This type of battery is good for an RV because it can be installed in locations where there is not easy access to power common with water, electric or gas tanks. It also has a longer cycle life than older designs which means it will last longer without needing to be charged as often. The Deka AGM battery has a low internal resistance which makes it fit well in older vehicles with less electrical system power capacity. This battery is about the best choice for any RV owner.

Dry Charge: The Dry Charge brand of batteries are a bit newer on the market than Deka and Alkaline, but they make excellent rv batteries. They come with thick lead plates which gives them more power capacity than other brands. This makes it so that your batteries can last longer before needing to be charged. They also come with a thicker, more durable battery case and sturdy terminals which protect the internal parts of your batteries from damage. This brand is ideal for anyone who has an extended stay rv because they take less time to charge than other types of batteries.

Alkaline: Alkaline batteries are very powerful and can last up to five times longer than other batteries on the market. This is due to their design being able to carry a higher load. The batteries also have no memory effect which means you don’t need to drain them before recharging them again. They also come with a low discharge rate, even when left in storage for a long period of time. These batteries are made by Duracell and are great for people who have an older rv, but want a battery that can charge quickly and last longer than current designs without memory issues.

While all three brands listed above make excellent batteries for the rv market, companies such as Camco, Lights of America, and EverStart also make great batteries for the rv industry. The best brand of rv battery will come down to what you are looking for and how much you are willing to pay, but any of them can be a good choice depending on your personal preferences.

Best Rv Battery Setup And Usage

RV camping is a great family experience, but you’ll need to make sure you have enough power to stay comfortable. Your RV batteries are the most important piece of your camping equation, and they determine how much power you can use without having to constantly monitor them. The better your battery setup, the less often you’ll have to touch them.

Let’s take a look at some of the ways you can improve your batteries, giving you more usable power.

Choosing the Right Batteries

First off, before you even think about how to use and maintain your RV batteries to get the most out of them, it is important for you to choose high quality ones to begin with. Poor quality batteries are a very serious problem, even when they’re new. There are many different kinds of batteries available on the market today, but for your camping needs it is most important to focus on two things: efficiency and dependability. You want your battery not to consume too much energy while storing enough of it at the same time. This means you need to choose a battery that has the best of both worlds, and it’s difficult to find. You also want your batteries to last as long as possible before needing replacement. For this purpose, marine deep cycle battery is your best bet.

Determining Your Needs

The first step in choosing the right batteries is understanding how much power you will need. If your family of four camps for two weeks a year, you won’t need batteries that are as powerful as those used by the families that camp all summer long. Camping every weekend or even several times throughout the week means more use of electricity because you have appliances to run more often. You should definitely have your batteries evaluated by a professional to see what kind of power and voltage they need. There are many different kinds of equipment you use while camping, from motorhomes to pop-up tents; this will help you determine the best size of battery you need for your setup.

A simple rule is that if there is nothing on in your RV, and you haven’t used anything for some time, the battery should still have 12.7 volts run through it to provide a charge. This means that having more than one battery in your vehicle is very important. Having dual batteries allows you to stay charged when using any appliances or electronics while parked, without being concerned about running out of power while you’re on the road.

Installing Your Batteries

Installing batteries is an easy job, and you can probably do it by yourself while watching a movie if there’s nothing else going on at home. The most important thing to keep in mind about installation is that your batteries need to be positioned as far away from each other as possible, and they need to be kept in a place that is cool and dry at all times. They need to have ventilation, which means you should never stack your batteries on top of each other in an effort to save room.

This may take a lot of planning for some RVs; many people elect to buy an RV battery box. They are specifically designed to fit your batteries and keep them safe from the elements, while also being able to hold multiple batteries very easily.

Maintaining Your Batteries

Now that you’ve got your batteries, installed them, and know how much power they need to function properly…how often do you have to maintain them? Some people say once a month, some say every three months; it all depends on how you use your batteries. Many people who camp regularly will only have to check their batteries about once or twice throughout the entire season, while those who don’t use their camper very often may need to check them more often than that. It really comes down to individual circumstances, and a little bit of trial and error to find out what works best for you. The main thing is not to overcharge your batteries, and you’ll be safe from that if you just remember the golden rule: don’t leave them on for more than 24 hours at a time.

Precautions To Take Note Of

You may need to take some precautions when it comes to your RV’s battery. The items listed below are a few things you should be aware of when using your RV’s batteries:

  • Make sure that your RV is parked in a cool, shady area before running the generator.
  • Turn off any lights inside or outside the RV while you’re running the generator. This will help preserve battery life and keep your generator from overheating.
  • If possible, use a battery charger instead of using generators. Battery chargers are very efficient and don’t put as much strain on your batteries as generators do.
  • Don’t run generators inside your RV, or close by if it can produce fumes that could harm those with respiratory issues.
  • Turn off the generator when there is no need for it, to avoid overloading the generator and avoid draining your RV’s batteries.
  • Never try to jump start or charge non-sealed AGM batteries. You can damage them by doing so and will render them useless. Also be careful about disconnecting a battery while the generator is still running, as arcing could potentially occur.
  • Don’t let your battery freeze or get too hot, as damage to the cells will occur either way. A good rule of thumb is to keep it above freezing (32 degrees) and below 104 degrees Fahrenheit at all times.
  • While batteries are being charged, the voltage of a battery can spike to 2 volts higher than normal while charging. So, it’s important not to charge more than one 12-volt battery with another 12-volt charger. Most models will have this problem fixed, but if you’re using an old model that doesn’t, be aware of the danger.
  • Don’t mix battery types unless they are the same type. For example, you can’t mix both deep cycle and starting batteries in one bank.
  • Have your battery tested at least once a year, or more often if used heavily for boondocking in the summer months.
  • Keep an eye on your water levels of the batteries. Be sure to add distilled water if needed before charging them. A simple hydrometer will help you check this and is easy to buy online or at most auto parts stores.

Types Of Rv Batteries

There are 3 main types of RV batteries: Flooded, Gel, and AGM batteries. We’ll cover the different types below:

Flooded Batteries (wet cell) — These are the oldest type of battery that has been available since 1912. It is also the cheapest with a price that ranges from $50 to $80, depending on brand and capacity (measured in amp hour). Although this type of battery is cheaper, it does not come with an advantage over the other types: It has a higher failure rate and has to be checked on daily since they are more likely to spill out acid when recharged.

Gel Batteries — This type of battery became popular in the 80s after they became popular in military vehicles, aircraft, and off-road vehicles. Though the battery is more expensive than flooded batteries at around $100 to $120 per amp hour, it can store a higher charge for longer periods of time hence having a longer lifespan. Gel Batteries also have the advantage that they are less likely to spill out acid when recharged—they even won’t leak when the battery is being used.

AGM (absorbed glass mat) Batteries — This type of battery became popular in 1995 and is commonly known as “maintenance free”. These batteries are more expensive than flooded ones at around $200 to $250 per amp hour; but what it stands out with is its quality which is similar to that of Gel Batteries. It is a sealed unit, does not need any maintenance nor will it spill out acid even if it’s knocked over or recharged.

Rv Battery Cell Composition And Materials

Lead-acid batteries are the most common type of deep cycle battery, but there is a difference between flooded and valve-regulated. Flooded lead-acid cells come in two varieties: Serviceable style with removable caps so you can inspect or perform maintenance as needed or the sealed maintenance-free style.

Valve-regulated lead-acid (VRLA) batteries are gelled or absorbed glass mat (AGM) types for deep cycling and don’t require adding water like flooded cells. They will however still require attention at some interval depending upon use.

Questions and Answers About Rv Batteries 6V

Are 6 volt rv batteries better than 12 volt?

The voltage of an RV battery is not a matter of better or worse. It’s all about the amp hours delivered and how long the power will last to run your appliances.
However, it’s very common for people to have a misconception that the higher voltage (usually 12 volts), would be more powerful and would give them a longer charge when in reality, both 6-volt and 12-volt batteries can give you essentially the same amount of time before needing another recharge. What makes one better than another is simply the size of this type given its corresponding values: as with cars, bigger means stronger (i.e., more miles=more space for energy). So its all up to what features work best for their situation rather than going by the voltage.
You can also wire lower voltage batteries in a series to reach a higher voltage, like 12 volts.
However, you can’t go the other way and wire batteries with different voltages in series as it may damage each battery and destroy the whole set up. The only time you’d see an RV with two or more separate 6-volt batteries is when they’re connected in parallel to create the 12 volts, which is better in terms of weight and cost.

How long should rv batteries last?

Exactly how long your RV battery will last will depend on the maintenance that it’s given. If you’re not very diligent about checking the water levels or keeping everything clean, you could be looking at a shorter lifespan than if you take care of your batteries.
Most deep cycle batteries are rated upwards of 600-700 cycles before they need to be replaced but this is under very specific conditions and advice from the manufacturer. Depending on what type and amp hour rating these batteries are, the length of time varies substantially – say as little as two years for some long life lead acid deep cycle vs four or five years for an AGM deep cycle battery. Any time spent not charging these batteries also means lower service lifetime which is why smart chargers always have a maintain mode.

How to keep battery charged on rv?

– Turn off appliances when they’re not in use to conserve power
– Use solar or generator power, if available
– Run the engine close to enough every day as possible for at least one hour. The frequency and length of engine use varies depending on the capacity of your battery bank. If you run your generator more than needed, you won’t be able to charge up enough during a day’s worth of sunlight. Turn off electrical equipment when not in use and don’t leave things plugged into an exterior outlet where possible
– Finally, have patience – it may take time before you get accustomed to managing electricity for camper living but with some careful attention these suggestions will help keep your RV battery charged!

How to maintain an rv battery?

RV batteries should be well maintained and preventative maintenance can help extend the life.
Maintaining an RV battery is important because an undercharged or overcharged battery can quickly lead to ruined electrical systems.
An easy way to start off is by following these simple precautions:
– Don’t let your battery get low or completely run out of power without recharging it, as this will shorten the life expectancy of the battery and could damage it in the process,
– Carefully remove any corrosion left on top of cells/battery case with a soft brush before charging and installation,
– Always make sure you drive your vehicle at least once a week even when stored for long periods (you should do this anyway).
Lastly, try to take it easy on your RV’s battery; don’t run multiple electrical devices at the same time, avoid letting the battery sit for more than one month without charging, and try to adhere to a regular schedule of maintenance.

Why do you need a good battery for boondocking?

A good battery will give any device the ability to function, while a bad battery may render it non-functional. The solar panels you need may not generate enough electricity to power the devices you want for boondocking, so if that is your plan, then you will need a good deep cycle battery that can store and maintain more energy than what you are inputting from the panels.

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  • Reply
    December 2, 2021 at 10:42 pm

    Thanks for your information. A 6V battery is more expensive than a 12V one, but it promises an extended service life and greater power output when wired in a series.

    • Reply
      Lydia Yang
      February 10, 2022 at 12:13 am

      Yes indeed Dalton, it’s funny how a 6V can be priced higher, but it really depends on the brand and its quality as well. What brand do you personally use?

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