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10 Best Deep Cycle Battery Chargers Reviewed and Rated For 2021

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Tim Rhodes

Are you looking for the best solar deep cycle battery charger? Listed below are some of the options that you need to consider.

We live in a world where so much is run on power and people rely on their devices and tools, be it a car or a cell phone, to keep them constantly connected. 

But trouble strikes when we lose the ability to use an electronic item as a result of having the power run out thanks to battery failure.

As much as we may rely on them in an electronic age, batteries can be fickle and temperamental. 

10 Best Solar Deep Cycle Battery Chargers Reviewed And Rated

Looking for the best solar deep cycle battery charger? Let’s go ahead and get on with our list.


1. Clore Automotive Solar Pro-Logix PL2310 6/12V Battery Charger/10 Amp

Automotive Solar ChargerThis light-weight charger by Clore Automotive is the answer to your most basic battery charging needs.

This versatile battery charger can power-up an array of products as its settings can be adjusted to accommodate 2,6 and 10 amp charge rates, which is impressive.

With its fully automatic operations, using the battery charger is pretty straightforward even for the least tech-savvy among us.

Use the power supply mode to provide a stable power input and maintain system voltage, which is useful in a wide variety of applications.

Pros & Benefits: 

  • This battery charger is light and easy to carry as it weighs less than 5 lbs. 
  • It’s compact so won’t take up space in your car boot or store cupboard
  • The charge rates can be adjusted to accommodate a range of devices
  • Once the battery is charged, the device can be used to maintain the charge level as desired

2. NOCO Boost Plus GB40 100 Amp 12-Volt Portable Lithium Car Battery

Lithium car BatteryWhen you’ve broken down on the side of the road or if your car won’t start when you’re late for work, you need a quick solution; this is it. 

This 100-Amp portable car battery jump starter pack from NOCO will bring your battery back to life in a matter of minutes. 

With the potential to charge both 6 volt and 12-volt batteries the NOCO Boost Plus GB40 is a versatile product.

It can be used not just on deep cycle batteries but standard batteries as well as the AGM variety. 

Safety First – this battery pack is spark-proof and it has a reverse-polarity function so the user can rest assured they won’t get any nasty surprises.

A unique feature that can be used on 12-volt batteries is the device’s function to de-sulfite batteries. 

And it isn’t just for getting the car started, it can also be used as a portable power bank that can be used to charge a range of devices such as smartphones, tablets and other products with USB connections. 

The pack’s 100-lumen LED flashlight, which can come in handy on a dark night, has several different modes including emergency strobe and SOS functions. 

And what’s more, the NOCO Boost Plus has an ultra-compact design weighing in at less than 3lbs it certainly isn’t a burdensome machine to carry around. 

Pros & Benefits: 

  • It has a water-resistant enclosure – which will protect the user against electric shocks
  • Features high-discharge lithium technology which is safe to use in any climate
  • Compact and light-weight
  • Multi-purpose device

3. Black and Decker 20V MAX Lithium Battery Charger, 2 AMP (BCAC202B)

Lithium Battery ChargerThis 20 V Max Lithium solar deep cycle battery charger by Black and Decker can be used on both 6 and 12-volt batteries. 

This nifty little machine is great as it can be used on both standard wet batteries as well as gel batteries.

And what’s most it’ll get the job done quickly – in 45 minutes or less.

With its low amp value, the Black and Decker 20 V Max is better suited to maintaining a charge on a healthy battery and is far less effective when it comes to a battery that is on its last legs. 

As one might expect from a brand like Black and Decker, this charger comes with a range of hardware features including a mounting bracket, battery clips and 0-rings. 

In addition to being user friendly, with a weight of fewer than 2 pounds, it’s another compact and light-weight battery charger.

Pros & Benefits: 

  • Convenient – compact and light-weight
  • Fast – it charges batteries in less than 45 minutes
  • Versatile – Can be used on different types of batteries

4. Battery Tender Plus 12 V, 1.25 A Charger 

Battery ChargerUnlike traditional trickle chargers, this fully automatic model is cleverly designed to fully charge your battery and maintain the charge at proper storage voltage without causing any damage. 

Despite the fact that it’s only a 1.25 amp charger, it chargers as fast, if not faster than many of the 3 amp models on the market at the moment. Talk about efficiency!

The device comes with a quick connect harness included which is great when it comes to getting to those hard-to-reach places.

Reverse polarity protection comes as standard to ensure the user is safe at all times. 

The convenient red and green light indicators let you know when the battery is good to go and when it needs to keep on charging.

You’ll get a set of alligator clips and ring terminals thrown in too. You can’t ask much more than that. 

Unfortunately, in terms of space requirements, the Battery Tender Plus is slightly larger and heavier in comparison to similar devices. 

Should you have any issues or faults that can’t be easily solved, the device manufacturer, Deltrain, offers you a 10-year warranty on the Battery Tender Plus Charger. 

Pros & Benefits:

  • Fully automatic battery charger
  • Easy to use
  • Fast and efficient
  • Excellent safety measures

5. BatteryMINDer 128CEC1: 12 Volt-2/4/8 AMP Battery Charger

8amp Battery ChargerThe BatteryMINDer 128CEC1 is a high-end combination battery charger and maintainer.

Highly efficient, this device allows the user to charge or maintain up to eight batteries at a time when connected in parallel. 

You’ll need to have Y-Connectors for this which aren’t included so be sure to purchase them if you plan on making use of this particular function. 

One aspect of its design that sets it apart from alternative deep-cycle battery chargers is that it has the ability to de-sulfate the battery which helps extend its lifespan. 

Sulfation is believed to be the primary cause of battery failure and by reversing the process, the BatteryMINDer 128CEC1 removes one potential risk to the battery. 

Another noteworthy feature of the product is its ambient temperature sensor which adjusts the voltage of the battery based on temperature readings so you can rest assured your battery will be properly charged or maintained regardless of changing weather conditions. 

The BatteryMINDer also boasts a number of safety functions that are worth mentioning including reverse polarity, short-circuit and overheating protection. 

The BatteryMINDer can accept power from a range of sources with outputs of between 90 volts and 240 volts as well as alternating currents as frequencies between 47 Hz and 63 Hz, which means you can use the charger pretty much anywhere in the world. 

As an added bonus the charger has 3 different speed settings – a 2-amp setting to maintain the charge, 4-amp for the slow charge and 8-amp for a speedy service. 

And if all those benefits weren’t enough, it’s an energy-efficient device that’s been FCC certified. 

Pros & Benefits: 

  • It can charge up to 8 batteries simultaneously
  • Energy-efficient and environmentally friendly
  • It comes with a 5-year manufacturers warranty 
  • Multiple charge settings for different battery conditions

6. DBPOWER 800A 18000mAH Portable Jumpster, Battery Booster

Portable Battery BoosterThis compact little gadget from DBPower comes highly recommended. 

You’ll be surprised at how powerful such a small charging device can be – this machine manufactured by DBPOWER is capable of jumpstarting any vehicle with up to a 7.2-liter gas engine or a 5.5-liter diesel engine with an 800 amp peak climate. 

And what’s more, this solar deep cycle battery charger can do this process 20 times over in a stint.

The DBPOWER 800A 18000AH portable jumpster isn’t just useful when it comes to jump-starting a car, it also comes with a smart charging USB power which can be used to quickly charge up a whole host of electronic devices including smartphones, tablets and laptops – and all while you’re on the move. 

In terms of protective features, this DBPOWER device will have the bases covered with overcurrent protective on the high-quality intelligent jumper clamps and overload protection to short circuit protection and overcharge protection.

Bonus features of this unique product include the new addition of an LCD screen which will tell you exactly how much power remains and how far along in the charging process one is. 

And finally, DBPOWER has thrown in the addition of a compass, which may come in handy should you find yourself a little lost in the wilderness and need help finding your bearings. 

Believe it or not, all these features and more fit are all encompassed within a deep-cycle charging device that is compact enough to fit into your glove compartment – you really can’t ask much more than that, now can you?

Pros & Benefits:

  • Powerful and efficient
  • Excellent safety features
  • Multi-functional – it can be used for much more than giving the car battery a boost
  • Loads of bonus features and thoughtful touches
  • 3-year manufacturers warranty

7. Schumacher SC1281 6/12V Fully Automatic Battery Charger

Automatic Battery ChargerThe Schumacher SC1281 is a great deep-cycle battery charger for those who drive SUVs or trucks as its 30A quick boost function and 100A jump start extend to power levels strong enough to bring even those larger batteries back to life. 

That said, it’s also a pretty versatile product as it’s compatible with an array of battery types including standard, AGM and gel batteries as well as deep-cycle batteries. 

Furthermore, it can be used on both 6-volt and 120-volt batteries and can automatically detect which type of battery is being charged. 

The device’s battery and alternator tester not only provides information on the charge level but you can use it to help diagnose electrical problems.

The advanced diagnostic testing allows for a greater level of accuracy when it comes to figuring out what the issue with one’s battery is and its multi-staging charging and auto-voltage detection functions allow for added precision while simultaneously maintaining user-safety and extending battery life. 

The machine has different charging modes for rapid charging as well as a slow charging to accommodate various situations. 

It can also be used to maintain a certain charge level on a battery. 

Reverse hook-up protection means that the charger won’t work if you manage to reverse the clamps. 

One notable downside of the product is its size – it weighs just less than 13 pounds and is almost 12 inches long so it’s hardly the most compact design around but when you bear in mind its capacity and the type of large batteries it can be used to charge, this is somewhat understandable. 

Pros & Benefits:

  • Powerful – it can be used to charge larger batteries
  • Precise – advanced technological features allow the user to establish what is wrong with a battery with greater accuracy and charge it accordingly
  • Versatile – The device can be used to charge up a range of different batteries
  • Smart safety features
  • Easy to use controls

8. NOCO Genius G750 6V/12V – 75 Amp Battery Charger and Maintainer

Battery Charger And MaintainerHere we have another great product offering from NOCO – The NOCO Genius G750 can be used to charge and maintain battery life.

This model can be used on a variety of cars, boats, trucks, lawnmower or RV batteries.

It can also be used to charge smaller capacity batteries on motorcycles, scooters, snowmobiles and watercraft.

The NOCO Genius G750 provides a convenient way to 6 volt and 12-volt lead-acid batteries, including wet batteries, gel batteries and AGM types as well as common automotive, deep-cycle and marine batteries – it’s therefore highly versatile.

The overcharge protection function means that it’s easy to keep your battery fully charged without worrying about the risk of overcharging – all you need to do is plug it all in and let the NOCO Genius’ advanced charging technology do its thing whereby it’ll monitor and maintain the battery to optimal capacity. 

The device has a number of handy safety features including spark-proof technology and reverse-polarity protection – the manufacturer claims it’s one of the most advanced and safest battery chargers on the market.

This NOCO Genius charger works fast to repair damaged batteries and is energy efficient.

The device’s microcomputer monitors battery activity in order to ensure safe and quick charging.

A number of the machine’s features make it really straightforward to use – for example, the light indicator lets the user know when battery levels are at the right levels.

It’s a very well-designed deep-cycle battery charger and the clamps included are easy to connect and disconnected.

One reported downside of the product is that there is no clear visual display of the voltage.

Pros & Benefits:

  • Versatile – It can be used on an array of 6 volt and 12-volt batteries
  • Easy to use
  • Includes a 5-year limited warranty
  • Excellent range of safety features

9. Optima Digital 400 12V Performance Maintainer and Battery Charger

Performance MaintainerThe Optima Digital 400 is a versatile charger that can be used on a large number of batteries including marine batteries, RV batteries and motorcycle batteries.

Whatever your vehicle of choice, the Optima Digital 400 should be able to deliver a top-standard service to your battery. 

One of the unique features of this product and one which sets it apart from its competitors is the hybrid LED charging gauge with an LCD display – a pivotal element of the product that easily allows the user to clearly see where in the charging process they are.

The LCD display also adds to a positive user experience allowing you to easily operate the device from a single place.

The Optima Digital 400’s built-in battery health mode will automatically maximize battery life and performance so you can pretty much guarantee you’re doing all that is necessary to extend the lifespan of your vehicle’s battery.

An aspect of the Optima Digital 400 that the manufacturers have also emphasized is the machine’s ability to recover weak or discharged batteries from levels as low as 1.25V to optimum capacity in ways that other chargers on the market just can’t quite do. 

The spark-free connection is an important safety feature of the product. 

Finally, when it comes to storage you have the option of using the dual purpose hook and tile stand design or hanging the device up with the wall organizer bracket that comes included along with a set of alligator clips and ring terminals – so it really does seem like Optima has all bases covered here!

Pros & Benefits:

  • User friendly
  • LCD display
  • Built-in battery health mode – to maximize battery life performance
  • Recovers weak or discharged batteries back to optimum charge levels
  • Lightweight, compact and easy to store
  • Storage solutions included

10. TECMATE Optimate 6 12V/24V, TM-193 8-Step 12V 52/ 24V 2.5 Battery Charger

Battery ChargerThe Optimate 6 12V/24V Battery Charger by TECHMATE is a fantastic option deep-cycle charger. 

The Optimate 6 can also charge, maintain and test almost any 12-volt or 24-volt battery regardless of whether its an AGM, gel, standard starter as well as deep-cycle battery. 

This product has the capability of charging both a 12-volt or 24-volt battery but not only that; should the user mistakenly select the incorrect type of battery, this device has the ability to alert you to the fact that something is not quite right – how smart is that for a feature?

Automatic shutdown is another standout aspect of the Optimate 6 whereby the device shuts down upon detecting a short-circuit ensuring ultimate user safety. 

The outer casing of the charger is waterproof and ensures that the product can remain fully functional even at very low temperatures – you just need to increase the voltage if you intend to use the device in colder climates. 

The device also has a function where it is able to recover discharged batteries which comes in handy in instances where your vehicle’s battery fails.

There is also a feature that can automatically adjust the current to match the size of a battery.

Finally, consumers can be rest assured that this product will serve them for some time thanks to TECHMATE’s 3-year warranty on the Optimat 6 which provides cover should there be an issue with the product.

Pros & Benefits:

  • 3-year manufacturer’s warranty
  • Weatherproof outer casing
  • Charges both 12-volt or 24-volt batteries
  • Recovers weak or discharged batteries

The Benefits of Buying Your Solar Deep Cycle Battery Charger Online

Now you’ve got an idea about recommended deep cycle battery chargers, there is the question of where best to purchase these products. 

While some of us still prefer to do their shopping in person, the fact is we are living in an internet age and by far the best place to make your purchase is online. 

First and foremost, the most obvious benefit of shopping online is that it is far more convenient – just a few clicks and your purchase is done, wait a few days and it’ll be delivered right to your door. You can’t ask for something simpler than that, now can you? 

Thanks to lower overheads and operational costs, you’re almost guaranteed to get a better price for your chosen deep-cycle battery charger online at an established shopping portal, like Amazon. 

The selection of deep-cycle battery chargers you’re likely to find online is also greater. The online market is far more competitive so you know you’ll have access to all available options.

You’ll get access to all of the major manufacturers online as well as some smaller ones who may not be established enough to sell their products at major offline shopping retailers. 

Another major advantage of purchasing electronics online is that most reputable online retailers have a feature that allows the consumer to compare the features of similar products and weigh up the pros and cons of each option. 

Finding The Best Solar Deep Cycle Battery Charger

As you do more research into solar deep cycle battery chargers you’ll soon see how much choice there is open to you.

However, the option you decide to go for will depend on your personal requirements and budget.

Information overload can easily lead to a person feeling overwhelmed so before you start trawling the net, take your time to narrow down and understand the type of features that’ll be important for your purposes.

We live in an age where we are so dependent on our vehicles and electronic devices

If we want these to function well for a long period of time then we need to invest in products that help nurture and extend the lifespan of our batteries. 

Hopefully, these recommendations, based on some thorough research and analysis of the market, have at least brought you a little closer to finding the solar deep cycle battery charger that is right for you.

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