Recreational vehicles like RVs are designed to work without hookups (power, water, and sewer). This has made possible with the help of RV deep cycle batteries that power all the appliances on RV including lights, water pump, TV, fans and fridge.
However, most of the batteries don’t last long because of poor design. So if you are looking for the best deep cycle battery for your RV, then you have come to the right place.
But if you look online for best RV batteries then you will be presented with so many batteries and choosing one of them is a tough task especially when all manufacturer claims their product to be best then others.
To help you solve this problem, we have tested many RV deep cycle batteries according to their storage capacity, charging technology and battery chemistry. After rigorous testing, we came up with the reviews of Best RV Deep Cycle Batteries in 2020.
| Vmaxtanks 125Ah AGM Deep Cycle Battery (Best Over All)
(Editor's Choice)  |
| Battle Born 100Ah Deep Cycle Battery (Most Lightweight and Long-lasting Battery but Expensive)
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| Universal Power Group 100Ah Battery (Best Budget)
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| Renogy 200Ah Pure Gel Deep Cycle Battery (Best High Capacity Battery)
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| NPP 225Ah AGM Deep Cycle Battery
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| Renogy 100Ah Phosphate Battery
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| WindyNation 100AH AGM Deep Cycle Battery
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Best RV Deep Cycle Battery Reviews
1. Vmaxtanks Vmaxslr125 12A 125Ah AGM Deep Cycle Battery
Vmaxtanks SLR125 is another great deep cycle battery we have on our list that is specially designed to be used for RV vehicles and solar panels.
This 12V 125Ah AGM heavy-duty battery is constructed from military-grade custom plates. You will appreciate the 8 to 9 years of float service life offered by this battery.
I find this battery to be heavier than other batteries, so make sure you have proper transportation if you choose this battery. This battery weighs about 75 pounds and measures 12.9 x 6.8 x 8.7 inches.
You can expect at least 300 life cycles from this battery even if it is 100% deep discharged and also the life cycle increases up to 3500 cycles at depth discharge of 10%.
The manufacturer has recommended smart or microprocessor-controlled charger to charge this battery to improve the life span of the battery, and it will fast charge your battery at the same time.
The AGM technology ensures that the electrolyte/acid of the battery won’t spill out or leak even if it is subjected to heavy vibrations or impacts. This RV deep cycle battery is valve regulated to eliminate the excessive gas accumulation (outgassing) inside the battery.
This gas accumulation mainly happens because the temperature of battery increases beyond the permissible limit and due to sulfation the gases vapourize from electrolyte as well as leads.
The SLR125 deep cycle battery allows the broad operating temperature range of -4°F to 140°F for discharging while the acceptable temperature range for charging is 14°F and 140°F.
This battery has one of the lowest discharge rates of 1% to 2% per month so you can leave it unused even for years without damaging it whatsoever.
Maximum charging current input for this battery is 30 ampere while the maximum charging voltage is 14.7 volts. Also, the recommended current is 12 ampere and voltage is 14.5 volt to charge this battery quickly.
The manufacturer is promising 1 year of hassle-free warranty, and also they are proud of their product, and that is why they are offering a full refund if you don’t like the product within 30 days of purchase.
Overall, I would say that if you are looking for reliable and long lasting deep cycle battery for your RV then the VmaxTanks SLR125 is the best choice for you.
2. Battle Born LiFePO4 12V 100Ah Deep Cycle Battery
The Battle Born LiFePO4 is another mind-blowing deep cycle battery we have on our list. It has so many great features that the list is endless.
You may not know this, but LiFePO4 lithium-ion batteries are very resilient and safe to use in your RV. This lithium-ion deep cycle battery is rated for 12-volt output while the 20-hour storage capacity is 100 amp hour.
This deep cycle battery is not only great for RVs, but it can also be used to power your boats as well as trolling motors and off-grid applications.
The 3000 life cycle of this battery will make sure that you will get the most out of your investment on this battery. After 3000 cycles the storage capacity of this battery will go down about 80% of its initial storage capacity.
So it is safe to say that the battery will work until 3000 to 5000 cycles which is pretty impressive for lithium-ion deep cycle battery.
You will be relieved to hear that, this battery is maintenance-free and non-spillable and because of that, there is no chance of electrolyte getting spilled out. Also, there won’t be any gas accumulation or sulfation occur.
Despite its higher storage capacity, it is very lightweight and has a sleek design compared to other batteries having the same power output. Also, this battery is plug and play device so you can use it on RV, golf cart, boat or trailer without needing any extra hardware.
The in-built battery management system is just amazing. It protects the battery from potential harm and also it increases the battery performance by adjusting the cell automatically. The safety features include high/low voltage protection, overcharging protection and temperature protection.
By utilizing the built-in universal stud of this battery, you will get a tight connection, and this makes installing process relatively easy on RV and for other applications too.
For faster charging, the smart charger is recommended and also the constant power output of this RV battery reduces the lifetime cost per ampere hour.
I was amazed to see that the manufacturer is offering 8 years of replacement battery and 2 years of prorated warranty on this battery.
3. Universal Power Group 12V 100Ah Deep Cycle Battery
If you don’t want to spend a whole lot of money on your RV battery, then this is one of the cheapest RV deep cycle battery you can get right now on the market.
The Universal Power Group 12V 100Ah battery is SLM/AGM type battery. It is a perfect choice for off-road activity because the electrolyte is socked into the fine fiberglass matt so that it won’t spill. This also gives you the freedom to mount it in any position as you see fit.
This battery is rated up to 12V and has a storage capacity of 100Ah. If that is not enough for you, then you can connect four of these batteries in series, and it will provide you an abundance of power to last you longer when boondocking.
The outer shell of the battery is vibration resistant, acid-proof and can resist shocks too when you are driving your RV at full speed.
You can expect 500 life cycles from this battery when discharged at 50% and if you deep discharge it below 50% then the expected life cycle of this battery reduces to 200 cycles. Also, the 30% deep discharge of this battery will enable you to get as high as 1200 life cycles which is impressive given its affordable price range.
The operating temperature range for discharging is 5°F to 113°F while the charging temperature range is 32°F to 104°F. Also, the battery can be stored at a place having the temperature range between 5°F to 104°F.
If we talk about the dimensions, then this battery measures 12.17 L inches x 6.61 W inches x 9.16 H inches. However, the 63.93 pounds of weight of this battery is quite high compared to other batteries in our list.
You will get 1 year of warranty on this product, and the battery is expected to last 3 to 5 years. Overall, the UB121000 AGM deep cycle battery is reliable and will last longer.
4. Renogy 12V 200Ah Pure Gel Deep Cycle Battery
The Renogy 12V 200Ah is one of the biggest capacity deep cycle battery we have in our arsenal. This battery uses the lead-calcium grids that ensures the mild corrosion and thus increases the overall service life of your battery.
The massive 200 amp hour capacity is enough to last you for days without using the shore power when you go camping or boondock. Also, you can expect at least 10 years of service life form this battery.
This RV deep cycle battery uses the gel technology instead of AGM (Absorbed Glass Matt) or SLM technology. In the gel technology, there is no electrolyte, but instead, gel is socked into grids.
This configuration has two main advantages; the first is the gel will not leak from studs, and second, you will be able to mount it anywhere in your RV with the proper fastening mechanism.
Aside from that, this Renogy RV deep cycle battery is equipped with PE compound separator construction that ensures that the gel electrolyte is distributed evenly though-out the whole inner area of the battery. This results in lower internal resistance so you can get more power output (more efficiency).
When the battery is subjected to heavy use, then the internal temperature of battery increases drastically, and thus the chemical vaporizes resulting in gas accumulation inside the battery.
To solve this problem, this deep cycle battery is fitted with a valve regulator by using which you can release or outgas the excess gas. To top it off, the triplex strengthened sealing on terminals and posts prevents the leakage of electrolyte.
Thanks to lead-calcium grids alloy, you will get low self-discharge of 3% every month at room temperature, and because of this configuration, you don’t have to worry about recharging this battery continually even if it is left unused for longer period of time.
The Renogy has introduced explosion-proof safety valves in this battery that prevents the production of excess gas and also the construction of this battery prevents fire due to sparks.
This battery is quite heavy, in fact, 132 pounds of weight is huge for any battery. But believe me, this battery is worth your money and given its excellent service life and warranty I would say this is a great deal.
5. NPP NP6-225 6V 225Ah AGM RV Deep Cycle Battery
The NP6-225Ah is very durable and affordable battery we have reviewed so far. This is a 6-volt battery, and the whole package comes with 2 battery set.
In order to get the 12 volts of power output from this battery, you need to connect both these batteries in series. Please note that the amp hour rating of the batteries will remain the same when connecting the batteries in series.
By choosing this combo battery pack, you will be saving a lot of money, and on top of that, these RV deep cycle battery combo is cheaper than one 225Ah deep cycle battery. Despite its low price range, this golf cart battery will last longer than you think.
Its wide range of use adds another advantage in the list, here’s how. This deep cycle battery can be used for powering up your RV, golf cart motor, marine boat or storing the solar energy.
The top of the battery is completely sealed which gives you the utterly maintenance-free battery. Now because of this maintenance-free design, you don’t have to constantly check the level of electrolyte or water which makes the life lot easier.
Constructed from non-conductive ABS plastic, this deep cycle battery is resistant to shock, vibration, chemicals, weather, and heat.
The dimensions of this deep cycle AGM battery are 10.2 x 7.1 x 9.7 inches, and the weight of a single battery is around 74 pounds. Although, this battery looks smaller and sleeker but it is very heavy. But on the positive side, its compact design will enable you to install it wherever you want in your RV if you are running out of space.
The NPP cares about their product, and they stand true to their product, which is why they are offering 1 year of hassle free warranty. And also they will replace the battery if the battery shows any sign of defect, gets malfunctioned or does not hold the charge.
Overall, the NP6-225Ah is the top-notch battery and if you are looking for an affordable yet high storage capacity RV battery then this is the best battery you are going to get.
6. Renogy Lithium-Ion 12 Volt 100Ah Phosphate Battery for RV
Renogy Lithium-Ion 12 Volt 100Ah Phosphate Battery is our top choice for lithium-ion battery. Although it is one of the most expensive battery you will see on the market but its excellent life-expectancy and charge holding capacity makes it worth your money.
What I like most about this battery is its lightweight design. You will not believe that it weighs only 28 pounds. Most of the 100Ah batteries weigh more than 60 pounds so you can compare how lightweight this battery is.
As you can guess from the name, this battery is a replacement of AGM, flooded cell and gel batteries. It provides optimal performance and lasts longer than any other batteries on the market. Extremely safe lithium-ion photocells of this battery are specially designed by keeping in mind the safety of the user.
Also, the fully sealed and waterproof housing of this battery protects it from leaking or corrosion. Average RV deep cycle batteries have 500 to 600 life cycle till they completely die out but that is not the case with Renogy Lithium-Ion Phosphate Battery. This battery offers up to massive 2000 cycles of service life which is 4 times higher than other mediocre deep cycle batteries.
You will be amazed to see that, this battery comes with in-built battery management system (BMS). The BMS system optimizes battery performance by automatically balancing the cells. On top of that, BMS also protects the battery against over-charging, over-discharging, over-current, short-circuit and over-temperature.
Also, the battery can be operated between the temperature ranges of -4°F to 140°F while the charging temperature range is 32°F to 113°F.
One of the main advantages of this battery is that it is compatible with a variety of charge controllers and smart chargers to charge it in 4-5 stages.
This battery is capable of withstanding repeated 100% deep discharges without affecting its life expectancy. Also, the 5 years of solid warranty will give you a piece of mind.
7. WindyNation 12V 100AH AGM Deep Cycle Battery
The WindyNation 12V 100 amp-hour AGM deep cycle battery is best suited for your RV as well as solar power storage.
Made out of heavy duty plates, this battery is specially designed for repeated deep discharges. Also, this RV battery is ideal for off-grid power: solar systems, RV’s, UPS, offshore marine power, telecommunications, portable tools, and much more.
This AGM sealed lead acid battery uses the 99.99% pure virgin lead alloys that provide an extremely low discharge rate and high power storage capacity. You will be able to get as high as 10 years of float life out of this battery at 25 degrees Celsius.
The manufacturer is offering the combo of 1 to 5 batteries to accommodate the need of every user. Since you are getting this battery at a very budget-friendly price range, you can buy 4 pieces of this battery and create a bank of many parallel or series connected batteries to get a huge power output.
Using this massive power source, you will easily be able to run your electric appliances on your RV such as TV, heater, fridge, toilet flush, air conditioner and so on.
Also, the 100Ah of power storage capacity is enough to go camping for days in your RV without needing the shore power supply.
As you may know, the top of all AGM batteries is sealed to make them genuinely maintenance-free and spill-free. What I mean by spill-free technology is that the whole top of the battery is sealed.
Its AGM and non-spillable technology allow you to install it in any position because the electrolyte will not spill out or leak.
The only thing I did not like about this battery is that it comes with prorated warranty meaning that if the battery gets malfunctioned, then you will get a refund according to the duration of time in use.
If we talk about the operational temperature, then this BattaMax unit is capable of withstanding 5°F to 122°F temperature for discharging while the permissible temperature limit for charging is 32°F to 104°F.
