Top 10 Best AGM Battery Chargers of 2021 – [Reviews & Buyer Guide]

 Best AGM Battery Charger

Stay Fully Charged And Ready To Go With The Best AGM Battery Charger

Don’t worry about finding the best AGM battery charger for your batteries whether you are a professional or a homeowner. We have handpicked some of the top models and the best sellers and put them together in our review below to make the selection process easier for you. They will save you from a lot of frustrating battery problems and keep you ready for any action. Read on to find out which one will match your requirements.

1- Optima Digital 400 12V Performance Maintainer and Battery Charger

[Editor Top Pick]

Optima Digital 400 12V Performance Maintainer and Battery Charger

Whether you want to extend the life of your AGM, lead-acid and flooded batteries or recover dead batteries, the Optima Digital 400 can come to your rescue.

Health mode

Imagine never having to worry about maintenance of your battery charger. The optima digital 400 lets you do that with its health mode feature. This ensures that the battery is only charged when required and never allowed to drain completely. Therefore, your battery lasts its full life and gives you full value for your money.

User-friendly interface

Keep track of how much charge is left in the battery with the LED lights on the LED display. The interface also lets you see the charger mode and any error messages to quickly fix the problem.

Easy installation

This battery charger comes with an in-built tilt stand for placing the battery on a stable surface or it can also be hung with the inbuilt hook for easy storage.


When your RV, truck or other automobiles are left to sit idly for a while, they run the risk of battery drainage. But the Optima Digital 400 acts as a maintainer and will keep your batteries charged for use when you need it the most. What’s even better, the battery is smart enough to detect the correct charging mode as per the battery type.


When you have a really dead battery, recovering it can be a difficult task but not when you have the Optima Digital 400. It can revive batteries which have gone as low as 1.25 V and save you from a frustrating situation.

Notable Features

  • Can be used to charge both AGM and lead acid batteries
  • Inbuilt cable and cord wrap storage design
  • Spark-free technology for safety
  • Reverse polarity feature and temperature overload protection
  • Easy to read LED battery charging gauge and LCD display

Overall assessment

Thus Optima battery charger will ensure that your batteries stay at their optimum charge round the clock. They may be a bit expensive than other chargers but are worth your every penny.

2- NOCO Genius G3500 6V/12V 3.5A UltraSafe Smart Battery Charger

NOCO Genius G3500

Forget bulky traditional batteries and switch to a compact and portable battery charger with the Noco Genius G3500.


The G3500 can be used to charge batteries in a variety of automobiles from cars to SUVs to ATVs, lawnmowers and many more. This is because it can be used for charging different batteries from AGM batteries to wet cell to gel cell to calcium to enhanced flooded to all maintenance-free batteries.


If you are buying a battery charger to be used in a number of applications in your house, you will need something that is compact and light. The G3500 is compact making it easy to move from place to place.


As the G3500 is used in a variety of situations, it is designed to be rugged and durable. What makes it even better is that it is shock-proof, water-proof, dust and dirt-proof making it really long lasting.


In addition to overcharge protection, the battery charger comes with features such as spark-proof technology and reverse polarity to make it completely safe to use.


The advanced diagnostics feature of the battery will detect problems and display them as flash patterns for quick troubleshooting. From low voltage to high voltage to battery short-circuiting each error has a different flash pattern.

Notable Features

  • Can charge both 6V and 12V lithium ion batteries
  • Automatically detect battery level and charges when needed
  • Inbuilt memory to resume charging from being unplugged or a powercut
  • Prevents overcharging by checking battery usage
  • Backed by a 5-year warranty

Overall Assessment

True to its name, the G3500 is a genius of a battery as it is intelligent, automatic, versatile and let you enjoy a true plug and play battery charging experience.

3- Battery Tender 12 Volt Junior Automatic Battery Charger

[Best AGM Battery For The Price]

Battery Tender 021-0123 Battery Tender Junior 12V, 0.75A Battery Charger

If you are tempted to buy cheap battery chargers without taking into consideration the life of your battery, then stop right now. You can get a quality battery charger for almost the same price when you buy the Battery Tender Junior. It is a super smart battery with a lot of features thrown into its little body.


This smart battery is controlled by microprocessors which will keep your battery at its optimum condition with a four-step process. They are initialization, bulk charge, absorption charge and maintenance of charge.


No, it is not a compact battery charger but is actually much smaller than just that. In fact, it is so small that you can mistake it for a simple gadget in your garage. But make no mistake, it can do the job of other bigger batteries but without the show. Just take it with you anywhere you go and plug it for a hassle-free charging experience.


Simply plug in your battery charger and forget it as it comes with overcharge protection, spark-proof leads, reverse polarity protection and short circuit protection. This is a true plug, play and forget battery charger that will give you complete peace of mind.

Notable Features

  • Charges lead-acid batteries, AGM and gel cell batteries
  • Spark-proof and reverse polarity protection for safety
  • A four-step charging program that is completely automated
  • LED indicators for charge level and battery status
  • Backed by a 5-year warranty

Overall assessment

Despite its small size, the Battery Tender Junior is one of the most powerful 12V battery chargers you will find on the market. So not only can you take it anywhere, you can also smile knowing that it is super pocket-friendly.

4- BatteryMINDer Charger-Desulfator – 12 Volt, 2012-AGM

BatteryMINDer Model 2012-AGM

If you want to keep your AGM lead-acid batteries charged and free of problems, then the 2012-AGM by BatteryMINDer will be a great choice.


The 2012-AGM is not just an AGM battery charger. It is a charger, maintainer and sulfator all-in-one that can be used for high performance 12V AGM batteries. It constantly checks the battery for its amperage, voltage, and temperature for maximum performance.


Sulfation or build-up of lead sulfate crystals is common in lead-acid batteries. This can reduce the life of the battery and reduce the charging holding power of the battery too. But the 2012-AGM comes with a desulfation system that prevents sulfation and even dissolves existing sulfate for problem-free performance.


The battery comes with its own diagnostic feature that ensures that only the right amount of charge enters your battery as and when needed. It can also be used as a maintainer for vehicles that are not used for a while. It also ensures that the battery temperature is maintained at an optimum. All of the above features improve the longevity of your battery and lets you derive its maximum benefits.

Notable Features

  • LED indicator lights for battery charge status and condition
  • A true plug and play battery charger
  • Desulfator can remove sulfate from old batteries
  • Recovers dead and weak batteries
  • Overcharge protection even when used continuously
  • Microprocessor enabled for accurate charging

Overall assessment

If you are looking for the best AGM battery charger that will give you complete peace of mind, then the BatteryMINDer 2012-AGM will do exactly that.

5- CTEK (56-158) MULTI US 3300 12 Volt Fully Automatic 4 step Battery Charger

CTEK (56-158) MULTI US 3300 12 Volt Fully Automatic 4 Step Battery Charger

If you want an affordable battery charger which will improve the life of your 12V batteries, then look no further. The Multi US3300 from CTEK is a high performing battery charger with a lot of features packed into it.

4-step charging

The charger is a smart device that automatically reads the battery and charges it using a 4-step process. In fact, you don’t even need to know which type of mode to use as per the type of battery. The charger will automatically detect this and switch to the required mode. Once the charging is done, it automatically switches to the maintenance mode until your battery is ready for use.


You can charge a variety of vehicles and equipment using this versatile charger. From cars to motorcycles to lawn movers and even jet skies, the US3300 can charge them all. It also comes with three different modes to accommodate low power, high power and cold weather charging.


Due to its compact size, moving your charger around to charge the batteries in your vehicles is a breeze. Its small size also makes it easy to store in your garage when not in use and will hardly take any space.

Notable Features

  • Water-resistant and dust-resistance design for maximum performance
  • Use the cold mode to charge during cold weather
  • Recovers sulfated batteries easily
  • Short circuit and reverse polarity protection for user safety
  • Plug and forget convenience

Overall assessment

The Multi US3300 is a must-have if you are a homeowner that needs to charge the batteries of your vehicles and other equipment. Just connect it and say goodbye to all battery problems.

6- Clore Automotive SOLAR Pro-Logix PL2310

SOLAR Pro-Logix PL2310

Whether you are a homeowner or a professional, having a battery charger that can be used with all battery types is advantageous. The Solar Pro-Logix PL2310 from Clore Automotive is one such battery charger that might be the one for your needs.


When you buy the Pro-Logix PL2310, you don’t just buy a simple battery charger. It can be used for everything from quick charging to fixing battery issues to maintenance to long-term storage of batteries. So it is appropriate to call it a multi-purpose battery charger.


In addition to being able to do multiple tasks, the Pro-Logix can also be used with any lead-acid battery, making it the only one you will ever need for all your charging needs. From AGM to deep cycle to flooded to gel cell batteries, the Pro-Logix can virtually charge every type out there.

Automatic operation

All you need to do with this battery is simply plug it in and set the required voltage, battery type, and charger rate. Based on these factors, the charger will automatically ensure optimum charge to be delivered to the battery.

Multi-step charging

The Pro-Logix is controlled by microprocessors and uses an advanced multi-step charging process to ensure the optimum functioning of your battery.

Notable Features

  • Compatible with all battery types
  • For use with 6V and 12V batteries
  • Built-in soft start mode for completely drained batteries
  • Reverse polarity protection for user safety
  • Suitable for long-term storage of batteries

Overall assessment

The Prologix PL2310 is not only versatile, automatic and comes with a lot of safety features, it can also improve the shelf life of your batteries with its long-term storage feature. With so many capabilities built into it, the PL2310 gives you great value for your money.

7-  Schumacher SSC-1500A-CA Ship ‘N’ Shore 15 Amp SpeedCharge Charger

Schumacher SSC-1500A-CA Ship

If you want a reliable battery charger for automotive and marine needs, then the Schumacher Ship ‘N’ Shore will be a great choice.

Fully automatic

The Ship ‘N’ Shore is a fully automatic battery charger which is controlled by a microprocessor. It checks the battery status and automatically detects the charge rate required and auto shuts-off in case of an overload. It also automatically allows the battery to go through a multi-step charging process involving desulfation, absorption, bulk charging, monitoring, and maintenance.

Diagnostic feature

The Ship “N” Shore comes with an in-built diagnostic feature that will automatically detect problems so that you can troubleshoot them.

Three charging rates

The15 amp battery charger is able to deliver the required charge based on the battery type. This helps in using the right charge rate for the battery and thereby maintain optimum charge levels.

Use the 15-amp charge rate to quickly charge large batteries

A 10-amp charge rate is ideal for everyday charging at to keep your battery at optimum working conditions

A 2-amp charge rate is the ideal trickle charge for smaller batteries used in ATVs, lawn tractors and motorcycles


Though the unit is not very light, it is compact and comes with an easy carry handle on the top for portability.

Notable Features

  • Can be used only with 12V batteries
  • Large LCD display for battery status and charge
  • Reverse polarity protection and CEC compliant for user safety
  • Backed by a 5-year manufacturer’s warranty

Overall assessment

Don’t even think twice if a marine and auto all-in-one charger is what you want. The Ship ‘N’ Store is chock full of features giving you more value for your money and a complete peace of mind.

8- BLACK+DECKER BM3B 6V and 12V Battery Charger / Maintainer

BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger

The Black+Decker battery charger is a budget-friendly charger and maintainer that can come handy in a number of situations.


The battery charger gives you three different options to connect it to the battery. You can use regular battery clips or a 12V DC plug or a battery ring terminal according to your convenience.

Smart charge technology

Keeping your battery at optimal charge is key to a long lasting battery. The BM3B comes with a smart charge technology that ensures that your battery is always kept at its optimal charge.


You can charge all different types of batteries from AGM to gel and wet batteries with this battery charger. Therefore it can be used to charge your cars, ATVs, lawn mowers, deep cycle batteries and more. What’s even better?In addition to charging almost everything, it can also be used as a maintainer to keep batteries of stored vehicles and equipment from going dead.


Not only is the BM3B built in with overload protection, it also comes with short circuit protection, reverse polarity protection and is CEC ad UL listed for safety.

Great price

The BM3B is a steal deal as it packs a ton of features for a price tag of under $15.

Notable Features

  • Can be used for charging both 6V and 12V batteries
  • High-frequency charging
  • Keeps battery at optimum charge during storage
  • Automatic shut-off when charge is full or in case of an overload
  • Backed by a 1-year limited warranty

Overall assessment

If you want a good battery charger that will get the job done but does not pinch your pocket, then the BM3B will give you many reasons to smile. A small price tag is just one of them.

9- STANLEY BC25BS 25 Amp Bench Battery Charger

STANLEY BC25BS 25 Amp Bench Battery Charger with 75 Amp

When you have a completely dead battery that is hard to revive or a battery that needs maintenance, then get yourself the BC25BS from Stanley.

Fully automatic

Whether you are professional or a home owner, you can benefit from a fully automatic and a smart battery charger such as the BC25BS. Just connect the battery to the charger and it will automatically detect everything from charge rate to trickle charge to improve the life of your battery.


The BC25BS is a high power 25 Amp battery charger that can be used to jump-start a vehicle using a 75amp engine start. This is a patented engine start feature that is unique to the BC25BS.


You can use this battery charger for a number of vehicles and equipment such as jet skis, generators, motor homes, generators and to maintain vehicles that are not used for a long time.

Battery reconditioning technology

Sulfation or sulfate crystals on your battery can reduce the ability to hold the charge. But the BC25BS comes with a Battery reconditioning technology that helps in recovering the damage done by sulfation. The battery charger can dissolve the sulfate and recover the battery thereby improving its life and charge holding ability.

Notable Features

  • Easy to read large LCD display for charge and battery status
  • Charges 40% faster than other battery chargers
  • Prevents sulfation and recovers battery from sulfation
  • Reverse polarity protection for user safety
  • Backed by a limited 1-year warranty

Overall assessment

The Stabley BC25BS is a must-have if you love to go on road trips often and don’t want to be stuck with a dead battery.

10- Potek 2/10/20 Amp Smart Battery Charger and Maintainer

Potek 2/10/20 Amp Smart Battery Charger and Maintainer with 50-Amp Battery Clips

When you want a versatile battery charger that can also be used as a maintainer then simply get yourself the Potek smart battery charger.

Multi-battery compatibility

The Potek battery charger can be used to charge virtually all types of batteries from lead-acid to AGM to gel cell to even deep-cycle batteries.

Fully automatic

True to its name, the Potek battery charger is programmed with a 3-step automatic charging system that requires minimum intervention. It then automatically finds out the correct charge rate required to charge your battery for optimum performance.

Easy portability

This battery charger is compact and lightweight to be easily carried around wherever your go. What’s even better it comes with a sturdy handle on the top for easy portability.


The Potek battery charger comes with a number of safety features to make it very user-friendly. From automatic floating mode to short circuit protection to battery over heat protection to reverse polarity alert, all aspects of safety have been taken into consideration. You can use the battery charger with the confidence that it is absolutely safe.

Notable Features

  • Fully automatic charger for use with 12V batteries
  • Three different charge rates namely 2, 10 and 20 amp
  • LED display keeps you updated about the battery status and activities
  • Multiple safety features for user safety

Overall assessment

Get yourself the Potek smart battery charger if you want an automatic battery charger that will protect and improve the life of the batteries in your car, marine equipment and other gel and deep cycle batteries.


From customer reviews to bestsellers, we have collated some of the top battery chargers that have been tried and tested. As individual requirements can vary, we have picked one to suit different needs and different budgets. They have also been selected based on ease of use, safety features and versatility. Which one of these will become the best AGM battery charger for your requirement?

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Updated: — 4:38 am