Best Battery Charger For Deep Cycle RV Batteries Reviews-2022

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Using the right charger to charge your battery is the best way to ensure its longevity. The deep cycle batteries are more complex to maintain compared to other battery options. Therefore, investing in the best battery charger for deep cycle RV batteries is the best way to prolong your battery’s lifespan to deliver maximum efficiency.

There are a lot of deep cycle RV battery charger models in the market. Getting the right one for your RV might be a big challenge at large. Our review will provide a list of top deep cycle RV battery chargers in the market. We shall also highlight their feature, pros, and cons to help buyers make the right decision when shopping.

The Schumacher SC1281 6/12V is the best deep cycle RV charger overall on the list. This is a 1.5 amp battery charger capable of maintaining ranges of 6V and 12V. The best part of this charger is its capability to withstand extremely cold and hot temperatures, thus making it stand out from the rest.

How We Decided

–We researched every product, we review with our own.



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How To Choose The Best Battery Charger For Deep Cycle RV Batteries

Before choosing the best charger for a deep cycle RV battery, one ought to do much research. Since they come in different types, you should know how each operates. There are many factors to consider before choosing the best. Read along to find out.

Consider the power source required.

All chargers need power sources for them to function. In this case, different chargers require different power sources. You, therefore, need to consider the best power source that works for you. For instance, you can find one that requires solar panels. You can as well find one that requires generators. Choose the one that works best for you.

The type of deep cycle battery

Like we mentioned above, there are many varieties of deep cycle batteries. These different types come with various specifications and features. They are also charged with different chargers. One must understand which charger charges which type. Note that one should choose the correct one; otherwise, you will incur damage costs. Save yourself this by purchasing the right one needed.

The voltage on the system.

The different battery models require different voltages to charge them. The popular model is that of 12V. However, there are huge batteries in the market that require large voltages if you need one. In such a scenario, look for a charger with a voltage ranging from 25V-50V.

Size and weight.

As we are aware, batteries are different. The size and weight vary, so one has to be keen. You should choose the one that matches the operating system of your RV. Don’t get a heavy one for the RV as well. Ensure it is the exact size and weight required.

The discharge depth.

The amount of power in a battery is usually represented in percentages. The discharge depth is the total power amount of a specific battery discharges. The period a battery lasts before it is re-charged depends on the percentage. A good charger ought to charge the deep cycle battery up to its maximum percentage. Hence when choosing the best charger, put the discharge depth factor in mind.

Consider the charging time required.

The charging time counts when choosing a deep cycle RV charger for an RV battery. It is vital to possess a battery that charges up quickly. This enables you to have enough power constantly. It also allows it to last for a more extended period. Ensure you check the charging time on your RV operational system before settling for a charger.

Consider resistance to shock and vibration.

As RVs are often in transit, they will always be vibration. Deep cycle batteries inside them are not excluded. Hence, it is crucial to choose a model that is resistant to shocks and vibrations. Be sure and ready to incur damages in case you do not. Having a resistant battery will determine the charger. One can then go ahead and by an RV charger with that in mind.

Choose a user-friendly charger.

In the market, you will find several charger models designed differently at large. Most of them are easy to use, but there are a few which are complex at large. Some will just require clamping on the battery and start charging once plugged into a power outlet. However, there are a few complicated where you will require inputting some settings clear before they can start to recharge your battery. Get a charger that won’t take you time to set it up to recharge batteries.

The output

This is also another great consideration to put in mind to get the best deep cycle charger to use. The charger’s output is the deterministic factor of how fast the charger will recharge your battery fully. To have an ideal option from the market, you should first understand your rig’s power consumption rate. In case it is something that requires more power as such, then you will possibly need chargers with high output. However, if you just need little power to run the RV appliances, you can consider getting a standard option.


This is an also among the essential factor you should consider in your selection process at large. However, let it be the last one of all factors. The quality features and specifications of a product are all the aspects that determine the price of the particular charger. Before you shop for a particular option, you need to settle at least five alternatives and compare their prices. Once you have done so, consider a budget-friendly choice that will serve your intended purpose at large.

What Are The Battery Charger For Deep Cycle Batteries?

01. Schumacher SC1281 6/12V Fully Automatic Battery Charger and 30/100A Engine Starter

Salient Feature

  • Charge time: 24 hours
  • Dimensions: 11 x 10 x 8 inches
  • Voltage: 12 Volts
  • Amperage: 15 Amps
  • Warranty: 2 years
  • Certification: UL
  • Weight: 12.65pounds

If you are looking for a quality charger that will serve you best for an extended period, look for nothing other than the Schumacher SC1281 6/12V. This is a true charger model you will find in the market built in a small portable unit. This charger has three maintenance modes ranging from a 3 amp mode, 8, and 15 amp modes. This battery charger features many excellent specifications that make it a top market model you preferred by most people.

Protection feature

This auto battery charger has a battery and alternator tester that offers state of charge and assists identify any electrical issues. It is also integrated with a multi-stage charging and automatic-voltage sensor for increased accuracy, safety and battery life.

It’s powerful

It’s equipped with a 30-amp fast boost and a 100A jump start. This provides enough power to start trucks, SUVs, and large batteries.

It’s flexible and efficient

This charger can charge different batteries such as standard, gel, AGM and deep cycle batteries. The reverse hook protection system also ensures that this model will not work if the terminals are reversed.

It provides accurate results.

This model has a large LED display system, indicators and faster push buttons that allow users to get an idea of the battery percentage and quickly read the reading without straining their eyes.

Fast charging

It has a microprocessor to maintain battery charges and also optimize the charging period.

Voltage detection

The charger has an auto voltage detection feature that enables it to detect any 6 and 12V batteries.


  • It Charges numerous batteries
  • Its built with user-friendly control functions
  • It has large Led display and indicators
  • Built with excellent charging speed
  • It adheres to all DOE standards


  • Somehow costlier
  • Several complaints of loose parts
  • It is heavy

02. NOCO Genius G15000 12V/24V 15 Amp Pro-Series Battery Charger and Maintainer 

Salient Feature

  • Charge time: 18 hours
  • Dimensions: 1 x 1 x 1 inches
  • Voltage: 12 Volts
  • Amperage: 15 Amps
  • Warranty: 5 years
  • Certification: cUPC
  • Weight: 0.01 ounces

This is among the best models in the market that uses the advanced and safest advanced technology. It is the most versatile deep cycle RV battery charger you can find in the market performing excellently. The charger is designed excellently to serve users for an extended period. For instance, it has an external mount and a rubber base to prevent it from scratches and surface slipping at large. The NOCO Genius G15000 12V/24V charger is both water and UV resistance making it among the durable options you will purchase.

Quality performance

The G15000 15 Amp is one of the powerful professional battery chargers that can quickly charge all kinds of batteries in workshops and garages. It’s also perfect and efficient as your vehicles can be fully charged and serviced during year round battery maintenance or long term storage to enhance performance and longevity.

Multipurpose charge

This device can charge different types of 12 and 24 volt lead-acid batteries such as wet, gel and AGM batteries or any type of vehicle, deep cycle, marine or maintenance free batteries.

Advanced and safe technology

This charge has the most advanced safety features that ensure that the user safely charges their 12 volt lithium ion or lithium batteries. It maintains, protects and also extends battery life as it has anti-spark technology and reverse polarity protection feature. Users can also use the modern repair mode to reverse the harmful effects of leaving the batteries uncharged for long periods of time to improve battery performance and lifespan.


  • It is easy to use
  • The package comes with integrated eye terminals
  • It has spark-proof technology.


  • It is costlier

03. TECMATE OptiMATE 6 12V/24V, TM-193, 8-step 12V 5A / 24V 2.5A sealed battery saving charger

Salient Feature

  • Charge time: 18 hours
  • Dimensions: 7 x 3 x 12 inches
  • Voltage: 24 Volts
  • Amperage: 9.5 Amps
  • Warranty: 3 years
  • Certification: CEC
  • Weight: 1.3 pounds

This is the best option for people looking for a durable option in the market to serve their needs. They have gained a reputation over a long period for being the most durable chargers than any other charger models around. Firstly, the charger has a fully sealed cause that maximizes spillage and other harsh climatic conditions. The best part of this charger is that you can use it even in the harshest climatic conditions of -40 F, and your battery gets a full charge safely. Above all, the TECMATE OptiMATE 6 12V/24V charger can detect whether it’s charging a discharged or dead battery. This enables it to save batteries than other market chargers.

It’s solid and highly designed

This model is integrated in a weatherproof housing with wall brackets. This helps the user to use it in different weather conditions. It also has a 6-foot / 180-cm AC supply lead and a 6-foot / 180-cm charging cord that end in an SAE connector, a weatherproof battery cable, and a standard battery clip set.

Charge a variety of batteries

This is one of the most modern chargers in the world that can charge 12 V and 24 V batteries. The OptiMate 6 12V-24V is ideal for starter and deep cycle batteries with maximum performance that require temperature, controlled charging and long-term maintenance. The charger can also charge different batteries such as STD, AGM and GEL 12V batteries.

Works in all climatic conditions

It is designed to adapt to any climatic condition quickly. The voltage goes high when hot and down when cold; this makes it charge fully even in adverse weather conditions. For instance the lowest temperatures when used indoors or Outdoors is -40°F/-40°C.

Easy and quick to adjust

 It has an ampmatic charge control to enable users to make automatic adjustments to charge rates.


  • Its built with a robust body
  • It is durable
  • Offers great performance
  • Provides excellent compatibility


  • The user manual is not clear
  • Reported cases of charger draining batteries

04. BatteryMINDer 1500: 12 Volt-1.5 AMP Battery Charger, Battery Desulfator – Designed for Cars, Trucks, Motorcycles

Salient Feature

  • Charge time: 24 hours
  • Dimensions: 8.7 x 2.7 x 6.7 inches
  • Voltage: 12 Volts
  • Amperage: 1.5 Amps
  • Warranty: 5 years
  • Certification: FCC
  • Weight: 15.2 ounces

This is another quality deep cycle battery charger around that serves individual charging needs. The charger has quite a lot of features and specifications that make it appear among the preferable options.

Has the most advanced innovation

In order to charge batteries safely and efficiently, this charger is integrated with SmarTECHnology’s 1.5 amp plug-in run charger / maintenance device with a full-time, high-frequency, automatic pulse desulfator.

Charges different batteries

This device can charge many batteries at the same time when connected in parallel. However, this requires the use of 18ga or 27879-Y connectors or is sometimes sold separately. Some of the many batteries this device can charge include Optima brand Sealed, Flooded Sealed and Maintenance Free Deep Cycle Starter Batteries. The unit is also great for preparing trucks, cars, ATVs, motorcycles, boats, etc.

It highly certified

The unit is FCC approved, which implies that it adheres to all energy efficiency rules set by the Department of Energy and US Environmental Protection Agency.

Temperature sensor

The integrated temperature compensation adjusts the battery voltage precisely based on the measured values of the temperature sensor. This ensures that whatever the conditions your battery is exposed to, it will always be perfectly charged and maintained. The charger is also protected and shielded against short circuits, polarity reversal and excessive temperature.


  • Comes with battery clamps
  • Offers maximum protection
  • Recovers weak batteries
  • Its user-friendly


  • Has poor customer support service

05. NOCO Genius GEN1, 1-Bank, 10-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard 

Salient Feature

  • Charge time: 18 hours
  • Dimensions: 6 x 5.1 x 2.5 inches
  • Voltage: 12 Volts
  • Amperage: 10 Amps
  • Warranty: 5 years
  • Certification: cUPC
  • Weight: 4.2 ounces

This is another top product on the list that work effectively. The NOCO Genius GEN1, 1-Bank is an innovation in the market designed with advanced charging technologies. The feature that makes a stand out from the rest is its capability to charge twice faster than other deep cycle battery chargers we have.

Charges different type of batteries

This charger can charge different types of lead-Acid batteries from 25-230ah batteries like wet, AGM, gel, and deep-cycle batteries.

Highly technological

It comes with special features that helps to maintain and safeguard your batteries from sparks, overcharge, thermal and reverse polarity.

Powerful and greatly designed

This charger is housed with waterproof materials that works best up to a submersion down of 3-meters and its rated ip68 and NEMA 6p.


  • Offers maximum protection
  • It is waterproof
  • An easy to use option
  • Provides high sublime rates of charging


  • Shipping problems

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What Is A Deep Cycle Battery Charger?

It is vital to understand what a deep cycle battery charger is. These are chargers designed purposely to recharge deep cycle batteries. The deep cycle batteries have thick and solid plates compared to regular batteries. Deep cycle chargers have special features to charge these batteries efficiently and faster.

Especially if you own an RV, boat, small vessels, truck, trolling motors, etc. We all know batteries need to be charged. It is not any different in this case. The basic answer to the question is a charger that charges a deep cycle battery. The battery can be used in different places. Inclusive of trolling motors, sail boats, small vessels, etc. not to forget in RV’s.

How Does A Deep Cycle Battery Charger Work?

The deep battery chargers work a bit different from the regular battery chargers. The charging process goes through various stages to get the battery fully charged. Most chargers go through three charging stages to complete the recharge process. However, there are advanced options that get through up to eight stages to complete the recharge process. Let’s discuss how the deep cycle battery chargers work stage by stage.

Stage One: Bulk Charge

At this stage, the highest current and voltage are used at large. The charger will recharge the battery up to about 80% in the shortest time possible.

Stage Two: Absorption Charge

At this stage, the charger would have remained to recharge the remaining 20%. The charger will slow down at this stage to prevent it from overcharging and overheating.

Third Stage: Float Stage

This is the final charging stage and is mostly starts when the battery has attained about 90 or 95% charge. Current at this time decreases until when the battery is full to prevent it from damaging.

As you have noted, the deep cycle battery chargers work differently from the regular battery chargers. The regular chargers supply constant DC to a battery. This is different from the deep cycle chargers that supply different amounts of power at different charging stages.

Types Of Deep Cycle Battery Chargers

There are several types of deep cycle battery chargers in the market. All of them differ in their features and specifications. Let us look at some of them.


This is the most popular basic form of deep cycle batteries around. They are capable of restoring the power of a battery, even if it is totally depleted. They are the common market options, and their universal form enables them to provide the required amperage to your RV no matter the type of battery you are using. 


The restore is another deep cycle battery charger in the market but a bit expensive than the top first type. Contaminants might build up in the cells of the battery, thereby blocking the battery from getting recharged. The restore chargers are designed to break down all contaminants built up in the cells of your battery to enable them to receive power. These chargers are commonly used by professionals in garages and battery charging centers.


These are other deep cycle battery chargers that are there to maintain the charge in a battery. This way, batteries are prevented from getting completely discharged. They also help to prolong the life of batteries.

What Are Good Deep Cycle Battery Charger Brands?

There are several deep cycle battery charger manufacturers in the market at large. However, their reputation is everything that buyers check before they can shop for a particular model at large. Below are a few top deep cycle battery charger brands in the market.


This is an established market brand producing deep quality cycle battery chargers around the globe. The brand is the best option for people who need stable and consistently working chargers at large. Brand manufacturers produce versatile products that are employed in various settings.


This is another popular brand with the latest technology to produce viable deep cycle battery chargers. They have placed an innovative mindset in their production to ensure they produce resilient and adaptable chargers at large. They are the options for people who need robust chargers for their RVs.

Battery Tender

They are among the renowned deep cycle battery charger manufacturers in the world. Today, they are continually working to optimize and review their chargers’ design to fit the current era standards at large. They are best for people who need a modern updated charger.

Why Do You Need A Deep Cycle Battery Charger?

You have learned the top deep cycle battery chargers in the market. But then, why do you need this charger? Read on to get an idea about it.

They extend the life of a battery.

The deep cycle battery chargers are designed with a special feature to recharge the deep cycle batteries efficiently. Even though the standard options are also excellent performers, not all are compatible with charging these types of batteries. In case you use incompatible options to recharge these batteries, you will possibly damage them at large. The deep cycle chargers have thick and solid plates that can support these batteries adequately.

Besides this, these chargers are designed with advanced technologies that protect a battery from overcharging and overheating at large. This way, the lifespan of your battery is extended.

They are durable

Durability is among the key aspects you consider when you shop for any product in the market. The deep cycle chargers are both durable and functional charging systems compared to normal chargers at large. They can stay to serve you for an extended period without getting damaged, and they will serve you effectively.

They are easy to maintain

The deep cycle chargers are among the easy to maintain devices at large. Just store them in a better place after use awaiting the next time. Ensure you wipe off dirt and dirt from them often to prevent the buildup of contaminants that will affect their efficiency.

Why Do You Need A Deep Cycle Battery?

Deep cycle batteries are great gadgets for people who need to go green. If you compare these batteries with regular options, these models comes with numerous benefits. They are now a new revolutionary; they have replaced fossil fuel usage at large. They are excellent energy-providing devices that go almost hand in hand with the green technology at large. Below are a few reasons why you need deep cycle batteries.

They are durable

Compared to the regular and starter battery options in the market, these batteries are more durable. They also stay to work effectively all through their lifespan. However, there a big difference is their functionality. The regular options are designed to provide a higher output within a short period. On the other hand, the deep cycle batteries produce little when used over a short period. In terms of durability, the deep cycle battery manufacturers in a way that they can provide an amount of energy of up to 80 %. By this, the battery is expected to stay longer compared to regular options.

Low maintenance

The deep cycle batteries are better options when we talk about their maintenance costs. You don’t require digging deep into your pocket to maintain and care for them to serve you efficiently. When these batteries get fully recharged, their cells store energy perfectly. Since their systems are designed to recharge, store the energy, they have acquired and release it automatically. This way, you will require little to maintain them serving you efficiently.

They are efficient

These batteries are designed in such a way that they release energy consistently. They are more efficient, and they can serve you for many years before they get exhausted. This is why you will find them all over in the market as the ideal alternative energy storing devices at large. So, are you still thinking of other sources of energy? The deep cycle batteries are great alternatives to consider.

How Is A Deep Cycle Battery Charger Different From The Rest?

You will come across both the normal and the deep cycle battery chargers at large in the market. However, you won’t know which is better for certain purposes over the other until you know how they differ from the rest. To make the comparison simpler, we have to look at a couple of areas and try to compare them deep at large. So, how are these chargers different from the rest?

Charging process

The regular chargers charge batteries with a constant current amount from the start until they are full. However, this is quite different from the deep cycle battery chargers. These chargers charge batteries in various stages. All the charging stages use different charging currents for a reason at large. Therefore, the deep cycle chargers will take a long time to get the battery full than regular chargers.

How they operate

The regular chargers have a shutdown feature that enables them to stop charging once a battery is fully recharged. This is quite different from the deep cycle battery chargers at large. Even though are some options with a shutdown feature, most of the deep cycle battery chargers switch to float mode to tackle any form of self-discharge that might take place.

Their prices

The price is also another comparison factor at this point. Typically, the deep cycle battery chargers use dedicated circuitries. This is the reason there are costly compared to regular chargers.


Deep cycle batteries are great alternatives to fossil sources of energy. However, to maintain them to serve you for an extended period, there is needed to get them suitable chargers to recharge them when recharge need arises. Before you can purchase a deep cycle RV battery charger, there are a lot of factors you should put into consideration to get what is best suited with the type of battery you have. The models in our Best battery charger for deep cycle rv batteries review stand out as the best options you can consider to serve you for an extended period.

Our Best battery charger for deep cycle rv batteries review has all the details regarding battery chargers. Therefore, any person looking for information regarding these tools or chargers, should visit our site and get any suitable machine for their use.

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Do deep cycle batteries need special charger?

Yes, sometimes you will need a special charger for your battery. There are times you get your battery drops to voltages are so low to run your RV. In such a case, you will need a special option to get it to the standard voltage.

Can I use a deep cycle battery charger on a regular battery?

Yes, these two chargers are not such quite different as such. They only differ in the amount of output they deliver after a certain period. Deep cycle batteries provide small power over a short period, whereas regular batteries give large amounts.

What amp should I charge my deep cycle battery?

Let’s take that you have a working battery, but it is completely discharged. For instance, if it’s a 150 amp battery, you will charge it at 10 amps for about 15 hours to get it fully charged.

What’s the best way to charge a deep cycle battery?

We have two ways you can get your deep cycle battery fully charged. You can either charge while on and in a fixed position or use a portable charger to have it fully recharged.

How long should you charge a deep cycle battery?

A deep cycle typically has over 80 amps hours just when we tell on its physical size. Therefore, if you consider charging it at 2 amps, it will possibly take up to 48 hours to get fully recharged.

How often should you charge a deep cycle battery?

The cells of batteries need equal charge all through. In a time interval for about a month or so, you should apply a controlled overcharge on your battery. However, before you can equalize the charge, there is a need to check your battery’s water level.

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