Best Deep Cycle Battery

These are the best deep cycle batteries on the market as tested by our experts.
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Written by John Ho. Last updated on October 10, 2020

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Best Deep Cycle Battery

Whether you are looking to install a solar panel in your home to go off-grid or stepping up your fishing game by getting yourself a boat, sooner rather than later, you are going to require a deep cycle battery.

And unlike car batteries, many people have no understanding of deep cell batteries because they are not needed that often so if you are also one of those many people who have zero confidence while choosing a deep cycle battery for themselves.

There is no need to fret. I have cherry-picked the best deep cycle battery with help from my prior experiences and reviewed them in detail.

You can read through each of the battery's reviews and figure out the one that will be the most ideal for you.

How To Pick a Deep Cycle Battery For Your Needs

Before you dive deeper into the batteries' descriptive reviews, it is essential to know what features and attributes you should keep in mind when searching for a deep cycle battery in the first place.

I have also inserted some questions here that people often ask while purchasing a deep cycle battery. You can check them out too.

What to look for when choosing a deep cycle battery?

When buying a deep cycle battery, check the battery's capacity and always inspect whether its battery capacity will be enough to run whatever you want it to run smoothly or not. Also, see that if you are going to harness small output from the battery, there is no need to buy a large capacity battery. The high capacity batteries cost more, plus the extra energy would be of no use to you.

What brand should you go for when buying deep cycle batteries?

Some people skip this part because, to them, a low price is an utmost priority. But, I would never advise you to go for a shi*ty two-star brand to save a few extra bucks because the deep cell batteries manufactured with low build quality are not at all rugged and will hit you in the long run.

All the best deep cycle batteries I have recommended in this article are from reputable manufacturers. Even if you don't find any of these batteries suitable for whatever reason, you can buy some other battery but never cut corners and go for one without researching the brand's past reputation.

The Benefits of using a deep cycle battery

These are the advantages of using deep cycle batteries.

  1. They are lighter and less bulky than traditional lead batteries.
  2. There are no liquids required in deep cycle batteries.
  3. Low maintenance cost.
  4. Deep cycle batteries have less energy loss.
  5. These batteries charge at a fast rate.
  6. The batteries are durable and also have a long life span.

How long does a deep cycle battery last?

Deep cycle battery is usually pretty long-lasting. You can use a deep cycle battery for up to six years provided that you take proper care of the battery and make sure that it is not getting damaged during the charging process.

You can learn more about the maintenance structure of deep cycle batteries here.

Can you use deep cycle batteries in your car?

The clear answer to this bizarre but frequently asked question is a big NO. A deep cycle battery can not produce enough power to start up your car in the first place, and even if you manage to run your car somehow because of a small engine. You will not be able to make it far, and the battery will lose its life in a very short time, so it is not practical at all to use a deep cycle battery in your car.

At what amperage rate should I charge my deep cycle battery?

Usually, these batteries are charged at more than 6 amps. However, there is a different rating recommended for every battery, depending on its size. I would recommend you check the label on your battery to get hold of the precise ampere rating you should charge your battery and if you can not find the rating on the label, then look for it on the battery's manual.

Can you overcharge a deep cycle battery?

No matter what type of battery you are using, overcharging is never a good idea. In fact, overcharging a battery can reduce the battery's life, so a good idea would be to disconnect the battery from the source once fully charged.

Difference between a car battery and a deep cycle battery

The significant difference between a traditional car battery and a deep cycle battery is that the deep cycle battery discharges very quickly. On the other hand, a car battery takes some time to discharge.

What is an AGM deep cycle battery?

Put merely, AGM batteries can handle high temperatures, and also do not discharge faster like other deep cycle batteries.

You can read more about AGM batteries here.

How to identify a bad deep cycle battery?

The best and easiest way to identify if a battery is bad or damaged is by charging it thoroughly and then using it. If the battery gives the output that is guaranteed by the manufacturer, then it means that the battery is probably fine. Otherwise, it would be best if you reconsidered buying it.

To learn more about how you can identify a bad deep cycle battery, you can check out this article in which this subject is discussed in-depth.

Best Deep Cycle Battery Reviews

WindyNation AGM Deep Cycle Battery

Windynation Agm Deep Cycle Battery

What purpose does it serve best?

This affordable battery is best for the people living on an off-grid system. If you also have one for the eco-friendly movement, you should definitely consider this battery.

People with RVs or other kinds of remote living houses can also go for this battery because of its ruggedness and reliability.


I would surely not call WindyNation's design sleek. It is, in fact, a little similar to the design of a standard car battery. You can fit this battery even in a not too small but small place because of its reasonably minimal size. A carrying handle on the battery is, however, missing.

What is the best attribute?

The best attribute about this battery is the ruggedness and its consistency to charge despite the weather conditions. The batteries that I test are mostly fragile when it comes to harsh cold weather conditions and face problems in recharging. But, WindyNation has undoubtedly stood out from the charging and recharging standpoint. If you are all for fast charging, you should most definitely look into this battery. It has excellent capabilities in the charging department.

However, I would not call this an attribute, but, as I mentioned, the significance of the brand earlier in the article. It is excellent that WindyNation's brand has some good past reputation.

Final verdict

I think that this battery is a marvelous addition to solar homes, RVs, motorhomes, and other remote uses, even though the battery is in no way practical for being carried around due to its hefty weight and lack of a carrying handle. But, it is still small in size and can be placed in tight spots inside remote places.

The battery's charging capabilities are incredible, and It also comes at a bargain price, so I think it should be a go-to buy for anyone willing to use it in a remote home or for an off-grid system.


  • It can withstand harsh weather conditions.
  • Capable of recharging fast.
  • Excellent for being used in remote homes and RVs.
  • It has an affordable price tag.
  • Good brand reputation.
  • It does not take much space.


  • Not suitable for being carried around due to its heavyweight and missing carrying handle.

Universal 100Ah & 12V Deep Cycle Battery

Universal 100ah & 12v Deep Cycle Battery 2

What purpose does it serve best?

Like our previous contender, Universal 100Ah 12V is also great for hooking up with solar panels.

Apart from using it with solar panels, this battery is even better for part-time roadies. Its extra ruggedness gives it a bonus for being used in RVs and motor homes. Just Install this bad boy, and it will power your crib through all the rough and tough terrains and conditions.


The battery is rectangular. Its body is made up of rugged material with the intention of preserving the inner matt glass. The closings of the battery seem to be very strong and will not be cracked easily.

The entire battery's entire structure weighs a hefty 60 pounds, but the small size indeed complements the use of the deep cycle battery for traveling purposes. There is also a carrying handle present at the top for anyone who wants to carry it.

What is the best attribute?

The best thing about this battery is that it is robust. You can use it without any obstructions - its maintenance cost is almost next to none because it is an AGM, and in case you do not know, AGMs do not require any special liquid or gas to run.

You can take advantage of the 100Ah of this battery. It will consistently provide you with power without causing any discomfort, no matter how bad the weather situation is.

The product is not even that expensive if you consider the quality of the materials used in making it.

Final verdict

For what this battery is worth, it is a bargain. I know many people will contradict my above statement and rant about the fact that you can buy 100Ah batteries at cheaper price points. But, the point is that the material used in Universal AGM is top-notch. Its sturdy body can hold against unfavorable conditions. The thing is a rock and will prove to be beneficial in the long run.

Apart from it being sturdy and robust, the battery's recharging potential is impressive too. You can charge it very fast.

Suppose you are looking for a rock-solid battery that can consistently supply DC power to your RV, motorhome, any other remote area without any interruption. In that case, Universal 100Ah is undoubtedly the one for you.

However, if your requirements are slightly different, you can take a step back because it might not be the perfect fit for you.


  • Great for use in RVs and other remote homes.
  • The battery capacity is fantastic.
  • It recharges at a fast rate.
  • The build is rugged.
  • The maintenance cost is almost none.
  • It has a carrying handle.
  • It comes at a reasonable price.
  • Good brand value.


  • The body is too heavy to be carried around.

Optima BlueTop 8016-103 D34M RV & Marine Deep Cycle battery

Optima Bluetop 8016 103 D34m Rv Marine Deep Cycle Battery

What purpose does it serve best?

The BlueTop is made for not just one, but in fact, dual purposes. Not only does it store energy like a traditional deep cycle battery, but it can also be used to start up the engine.

This latest technology provides optimal performance technology in both areas. For this reason, it can be an ideal pick for marine vessel owners.


BlueTop's design is a bit unique because of the use of Spiralcell technology in it. The battery from the front looks like it has three cylindrical shaped pieces meshed into one to give structure to the battery. The top is sealed with a fixed cap. BlueTop's closings are tightly packed, and you can easily carry it around without the stress of spilling.

Its sleek design is also ideal for mounting the battery on marine vessels (boats, etc.) and RVs.

What is the best attribute?

The best attribute of BlueTop is that it can perform dual functionalities. You will not need to carry the weight of two separate batteries, one for start-up and the other for running. One less battery would take a lot of work off your hands - no need to stress about the maintenance of two batteries. I think the ability to perform two tasks from a single battery is excellent and very practical.

Aside from the fact that it can multitask, the spiral design of BlueTop gives it the advantage of bearing harsh weather - cold conditions.

The life span of these batteries is also excellent compared to traditional deep cycle batteries.

Final verdict

In my opinion, if you are a person who has some marine vessel or RV, and you do not want to go through the hassle of maintaining and carrying two different batteries, then BlueTop is the jackpot for you. It will both start up your engine and provide uninterrupted power to your crib.

However, BlueTop is not cheap. There is a price you will have to pay for the comfort you will get from it. But, if you are that person who wants to get the weight of two batteries off their chest, then I am sure you would be willing to pay the price for it.

Plus, BlueTop will also last longer than traditional deep cycle batteries, so it definitely will be an excellent investment.


  • It can be used for dual purposes.
  • The maintenance cost is almost none.
  • It works fine in harsh weather conditions.
  • Solid build quality.
  • Mountable on marine vessels.


  • A little expensive

Weize 12V & 100Ah Deep Cycle Battery

Weize 12v 100ah Deep Cycle Battery

What purpose does it serve best?

Weize 12V 100Ah is a pretty decent battery for hooking up with a solar panel. You can hook Weize 12V 100Ah with your solar panels, and it will keep powering your home appliances for years to come.

If you want to use it for backup, then you can do that too because of its extra-long lifespan. Whenever you need it in case of an emergency, it will be there for you to supply power to your appliances.


There is nothing fancy about the design, just a box-shaped body with a carrying handle on the top.

All the seals of the battery are tightly closed, and there is no chance of any leakage.

What is the best attribute?

Weize 12V 100Ah is although a pretty ordinary deep cycle battery, it has no special tricks up its sleeves. The thing that makes Weize 12V 100Ah unique is that it nails all the essential features of a primary deep cycle battery.

For starters, many batteries are not properly optimized and do not give enough power for their capacities, and supplying power is the prime feature of a battery. Weize 12V 100Ah is very well optimized and gives great power according to its capacity. The same case is with the recharging, many deep cycle batteries struggle during the recharging cycle, but Weize 12V 100Ah is brilliant when it comes to recharging and is quickly recharged.

And the last trait of a great battery is its ability to last for a long time. Weize shines in that department too. It has an outstanding lifespan for a deep cycle battery.

Final verdict

As I mentioned before, Weize 12V 100Ah is fantastic when it comes to performing all the necessary tasks of a deep cycle battery. You can install and forget this thing because it is bulletproof - no maintenance cost, interruption in power supply, and, most importantly, it will last for a long time.

You can hook it up to your solar panels or just set it as your backup. It also comes at an affordable price. So if you are looking for a battery that can do basic stuff and power up your home appliances when needed, then Weize 12V 100Ah is your best bet.


  • Fast recharging.
  • Long lifespan.
  • Good build quality.
  • Great value for money.
  • It can be used for backup.


  • Hefty weight

VMAX TANKS 12V 35Ah Deep Cycle Battery

Vmax Tanks 12v 35ah Deep Cycle Battery

What purpose does it serve best?

VMAX TANKS 12V 35Ah is excellent for a change. It weighs a lot less than the other deep cycle batteries that I have listed above.

You can use this dry cycle battery in small boats or in trolling motors. It can also be used as a backup considering you can carry it around easily due to its weight.


It has a boxy-looking 6.6 inches high and 7.7-inch wide design.

The body is solid as a rock. All openings of the battery are entirely sealed, and there is no room for spillage of the liquids. One the top, there is a carrying handle that many people who will be buying this deep cycle battery will use because the battery is easy to carry

What is the best attribute?

Up till now, we were only reviewing heavy, bulky batteries and powerful batteries. But, VMAX TANKS 12V 35Ah is nothing like those batteries. It is a small, lightweight, and less powerful battery. And that is what makes it so unique. You can easily carry it around or mount it on small boats, which require less power to run. You will never have to worry about carrying giant bulky batteries again.

In fact, powerful batteries are not needed in small boats, so all that extra power from those heavy batteries will never be of any use to you anyway.

Apart from just small boats, you can use this lightweight battery in tons of other things, too, that require less power to run.

Final verdict

If you are looking for an affordable lightweight deep cycle battery that can run small boats, trolling motors, backup, or something else which can run on less power, then VMAX TANKS 12V 35Ah should be the first contender in your priority list.

This thing weighs less than 30 pounds and is staggering when it comes to being carried around. There is a carrying handle placed on the top of the battery that makes it easier to carry.

You can also mount it around on anything, so if your line of work does not require insane power, get a VMAX TANKS 12v 35Ah. Otherwise, you can look into more powerful options.


  • It comes at an affordable price.
  • Fast recharging.
  • Extremely lightweight.
  • Easier to carry around.
  • Powers small boats.


  • Less powerful.
  • Short life span.


Now, I am going to answer some questions that get asked frequently. So, if you have any questions, you can find the answers here.

In case your concern is not addressed here. You can add it in the comments, and I will surely try to respond there.


Now that I have reviewed all the 5 deep cycle batteries that are best in the business right now. It would be best if you have made a clear picture of the battery that is suitable for your needs in your head by now.

However, if you are still confused about what decision you should make and which battery you should go for, then this conclusion should clear that fog for you.

If you ask me which is the best deep cycle battery and I have to pick from this lot, I will surely choose Universal 100Ah & 12V Deep Cycle Battery simply because it is the one with the most potential. You can take ultimate power from this deep cycle battery and get your RV, motorhome, or any other place up and running smoothly without any interruption in the power supply.

This thing is also almost bulletproof. You can use it for years without ever caring about the maintenance cost.

And to top it all off, Universal 100Ah & 12V Deep Cycle Battery also comes at a bargain price considering its longevity, ruggedness, and power. It is a fantastic long term investment.

Article written by John Ho
Our goal is to provide you with comprehensive and thorough solar-energy product guides, which will leave you confident that you have made the right purchase decision for your home.

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