When you start the car and it does not respond, or you are in the middle of nowhere and the car stalls. That is when you realize that a dead battery is one of biggest worries any motorists will have to endure. The experienced will be worsened if you are miles away from the nearest service station leaving you at the mercy of any good samaritan who can help you jump start the car or borrow a battery charger if he has one.

This is the kind of experience that will push you to invest in the best automotive battery charger that can save the situation in the shortest time possible. If you are in the market looking to avert future disappointments, then this article has a countdown of the best automotive battery charger.


Why You need a Battery Charger​

  • Using a battery charger regularly helps condition the car battery, and this goes a long way in extending its lifespan.
  • A battery charger saves you from the embarrassment of stalling on the road. Having a battery charger means not going to the garage or calling the towing services. You will save a lot on the car service budget.
  • You may need a battery charger when your vehicle spends most of the time in the garage without being driven. Parking your car for a long period without battery activity lowers the battery charger carrying capacity, in this instance, you will need a charger to ‘boost’ your battery to its functional level.

Some of the Features to Look For in Car Battery Chargers

Different car battery manufacturers have additional features that they use to entice car owners to buy their products. Some of these features may not be necessary if your immediate problem is a failing battery. To help you make an easy choice on the best automotive battery charger, I will highlight the standard features that any car battery charger must have for it to be considered for review.

The one thing I would like you to put your focus on is the features or the product description section which will tell the difference as to why one charger is preferred over the other in different scenarios.​

The Type of Battery you Have​

Do you have a lead acid, sealed, flooded or a gel cell battery? You need to know the kind battery your car uses before heading to the market to make a decision. To get the correct charger, you need to know if what you are getting will have the capacity to charge the battery you have. Not all chargers can be used to charge all batteries.

The Highest Peak Current​

A good battery must have its lowest and highest peak current measured in Amperes. The higher the current, the more current your battery will draw from the device without damaging the battery. This value can also be used to determine the quality of the battery charger.

What is the Average Charge Time​

Battery chargers are supposed to take you out of the fix in the shortest time possible. There may be a catch on the cost of the device where the faster it charges your battery, the more expensive it is. But we all want things done quickly, and so we let the wallet decide.

Chargers can have a slow or a rapid charge rate. You can use the slow charge rate for regular charging because it does not strain the battery and the battery will be charged to its optimum capacity. The rapid charge capacity is recommended in emergency situations.​


Portability of a battery charger will determine what extra features the device will have. If you need a battery charger that you will carry with you, then the small portable version is your choice but if you want the massive battery charger for your garage, well and good.​


The easier it is to use when setting it up for charging, the better. If you have never used a battery charger before, you may prefer one that has enough documentation and support when you are unsure of what to do. Does it have easy to use controls and readable displays and indicators? Are the connectors long enough or short to make connectivity difficult?​


How does the battery behave when the charge is complete? A preferred battery charger should have an automatic ON/OFF switch that moves to the SAFE position when the charge is complete. Are the cables and clamps insulated or can they withstand corrosion?​

Jump Starting Ability​

Most cases of car stalling is a result of a flat battery which in that case you need a jump starter to keep your vehicle back on the road. Investing in one with jump starting ability gives you a better chance of getting back on the road faster. This will save you the cost of buying a jump starter separately. This feature is ideal if you live in a very cold area.​

Polarity Check​

A good battery charger should indicate to you that your connections to the battery terminal are incorrect.​

Charging Capacity​

Are you buying a battery charger for a 12 Volt or 24 Volt car battery? Every charger has a minimum and a maximum Voltage capacity, and this is what determines the range of batteries it can efficiently charge.​

Battery Testing Ability​

Apart from charging your battery, a good automotive charger should be able to diagnose your battery for any possible problem.​

Auto Charge Capability​

A good charger is that which can be left unattended during the entire charging process without damaging the battery. Some chargers require that you be there the entire time to make sure the charging process is a success.​

Spark Resistance​

Sparks may pose a danger to you when you want to assemble the battery charger. Look for one that has insulated clamps to prevent sparks when connecting or disconnecting the clamps. Some battery chargers have an inbuilt spark ON/OFF switch that can be used to turn off power when connecting the clamps.​

Alternator Testing​

Does the charge that interest you have an alternator tester? Some do have an inbuilt function for testing the alternator readings such as Voltage and output.​

Warranty and the Cost​

The amount of money you are willing to spend on an automotive battery charger depends on the features you want your best choice to have. The cost is usually relative to features, and it all ends up with you. Warranty is supposed to give you the buyer some level of confidence when making a purchase. If you see one with a money back guarantee, why not try it out and see if it works to your expectations.​

Our 2018 Best Rated Automotive Battery Charger

The countdown of the top 5 best automotive battery chargers begins. Read and find out what features stand out, and I hope at the end of the review you will be able to make a final decision.​

1. Black & Decker BM3B 6V and 12V Battery Charger


The Black & Decker BM3B battery charger can switch from a 6 volt to a 12-volt charger depending on the capacity of the connected battery. Using this charger gives the battery a longer life even when kept for storage. It is a small portable battery charger ideal for DIYs, and you do not have to worry about its weight.

It has an inbuilt feature to protect you from overcharging, reverse polarity and short circuit. You can leave the charger connected to your battery, and it will charge when the charger drops and turn itself off when the battery is charged to capacity. The device is ideal at home because you can switch to the 6V option and charge your motorcycle, lawn mower, etc.​


  • Charges dead batteries
  • All its extensions and cables can be tucked to the side for increased portability
  • Affordable


  • The Voltage selector switch can be moved accidentally
  • Too many counterfeits in the market
BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps
3630 Reviews
BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps
  • Charges and maintains 12 volt and 6 volt AGM, GEL and WET...
  • Easy connection to vehicle battery using battery clips and...
  • Stops charging automatically when battery is fully charged...
  • Built-in circuit protection guards against overcharging,...
  • Mounting bracket built-in to charger for convenient...

Last update on 2019-05-30 PST - Details

2. Black & Decker BC2WBD 2 Amp Waterproof Charger and Maintainer


Black & Decker BC2WBD is a 12 Volts car battery charger that is fully automatic. It has a rapid charge rate of 6 Amps. It automatically detects the battery type and problems if any. You do not need to set the charge selection rate. Has an outer sealing that protects it from corrosion, oil, moisture and dust. You can use long extension codes without losing voltage over distance. It has safety features for reverse polarity, circuit protection, and overcharging.


  • Waterproof and protected from corrosion
  • Inbuilt safety features for short circuit and reverse polarity
  • Has a magnetic base for mounting
  • Able to charge a dead battery


  • It is bulky
  • Overheating problem
  • May cause radio interference when in use
BLACK+DECKER BC2WBD Fully Automatic 2 Amp 12V Waterproof Battery Charger/Maintainer with Cable Clamps
558 Reviews
BLACK+DECKER BC2WBD Fully Automatic 2 Amp 12V Waterproof Battery Charger/Maintainer with Cable Clamps
  • 2 amp battery charger and maintainer is compatible with any...
  • Fully automatic high frequency charging; AC low-voltage...
  • Features an IP67 rating which certifies a completely sealed,...
  • Built-in circuit protection guards against overcharging,...
  • Offers 3 ways to connect: 12V DC accessory plug, battery...

Last update on 2019-05-30 PST - Details

3. Schumacher SSC-1500A-CA SpeedCharge Charger


Schumacher SSC-1500 is a 12 Volts automatic and chip controlled car battery charger. You can use this charger to maintain your battery, charge your battery usually or set it up to 15 Amps and enable the rapid charging feature. With a large digital display and visible controls that make it very easy to use.

The device shows the battery charging and test results. The hands are retractable for portability. Schumacher SSC-1500 can diagnose battery problems. You can set the desired charge rate when connected to a battery. Its reverse polarity protection switches off the device to prevent any damage to the device or battery.


  • Digital displays for interactive operation
  • Can diagnose battery problems
  • Can set battery charging mode
  • Spark protected plugs
  • Has a sounding alarm when battery fully charged


  • Battery reading inconsistencies
  • The screen goes off when in idle mode even when charging
Schumacher SSC-1500A-CA Ship 'N' Shore 15 Amp SpeedCharge Charger with Battery Clamps
892 Reviews
Schumacher SSC-1500A-CA Ship 'N' Shore 15 Amp SpeedCharge Charger with Battery Clamps
  • Digital meter displays battery charge status and test...
  • Features retractable handle for easy portability
  • System test helps diagnose problems
  • Electronic push-button control switches help select between...
  • Accommodates 12-volt batteries only; Clamps are rated @ 75...

Last update on 2019-05-30 PST - Details

4. Deltran Battery Tender (021-0128) 1.25 Amp Battery Charger


Considered to be an intelligent charger that will automatically switch itself off when the battery is fully charged. With a charging capacity of 25 Amps, it uses advanced technology to extend your battery life up to three times its expected lifespan.

Deltran battery tender protects the battery from trickle charge voltage. It can fully charge the battery and still maintain its charge when kept for storage. You can use the quick connect cable harness when you are using the charger in hard to reach places.

The internal temperature has been optimized to work in different climatic regions. Automatically switches itself off from full charge to floating mode. You do not have to worry about reverse polarity because Deltran Battery Tender has protection to ensure you are safe. In the case of the wrong polarity, the diodes will flash to warn you indicating which color code goes to which terminal.

It has a 4 step charge mechanism:

  • Initialization
  • Charging
  • Absorption
  • Float Mode​


  • Does not overcharge batteries
  • Built-in temperature modulation feature
  • Protects battery from discharging even when in not in use
  • Spark Proof connectors


  • Cannot charge dead batteries
Battery Tender Plus 021-0128, 1.25 Amp Battery Charger is a Smart Charger, it will Fully Charge and Maintain a Battery at Proper Storage Voltage without the Damaging Effects Caused by Trickle Chargers
4861 Reviews
Battery Tender Plus 021-0128, 1.25 Amp Battery Charger is a Smart Charger, it will Fully Charge and Maintain a Battery at Proper Storage Voltage without the Damaging Effects Caused by Trickle Chargers
  • Fully automatic: The Battery Tender plus is a 1.25A battery...
  • Fast and efficient: This 1.25-Amp charger will charge as...
  • Convenient: Included is a quick connect harness for hard to...
  • Safe: reverse polarity protection to ensure user safety, red...
  • Included: The package includes Battery Tender ring terminals...

Last update on 2019-05-30 PST - Details

5. Stanley BC25BS 25 Amp High Frequency Battery Charger


Stanley BC25BS car battery charger has an engine start functionality, it is fully automatic and can automatically detect the battery type and sets the charging parameters. It utilizes high-frequency technology. Has three charging parameters which switch automatically from fast charge, trickle charge to top off. Can also be very useful at home for small equipment such as lawnmowers, generators, and jet skis. There is an alert system when you connect the wrong polarities.


  • Can start the engine of a car
  • Detects the battery type
  • Can be used to diagnose the alternator
  • Has a bright display screen for different readings


  • Inconsistencies in charge reading
STANLEY BC25BS Fully Automatic 25 Amp 12V Bench Battery Charger/Maintainer with 75A Engine Start, Alternator Check, Cable Clamps
636 Reviews
STANLEY BC25BS Fully Automatic 25 Amp 12V Bench Battery Charger/Maintainer with 75A Engine Start, Alternator Check, Cable Clamps
  • 25 amp bench battery charger maintains and charges any AGM,...
  • Fully automatic high frequency charging delivers 3 stage...
  • Battery reconditioning feature helps extend battery life; 75...
  • Equipped with reverse polarity protection; LCD screen...
  • Features a patented alternator check which indicates if the...

Last update on 2019-05-30 PST - Details


Don’t let the inconveniences of a dead battery push you to the limits, save time and get the best automotive battery charger that will get you back on the road as soon as possible. You have the option of having one like the Black & Decker BM3B that is portable, and you can have it in the car whenever the need arises. The good thing about it is, it can be used at home for your lawn mower battery.​

If you plan to have a battery charging overnight and you don’t need to keep checking on the status of the battery why not get the Stanley BC25BS, Deltran Battery Tender, and the Black & Decker BM3B / BC2WBD and car Battery Charger for unattended service. What will happen if you are in the middle of the road and the battery won't charge? The clear winner in this category, the Stanley BC25BS automotive battery charger will start your vehicle and enable you to drive straight to an auto shop for a new battery.​

I hope you have had helpful information that will guide in making the important decision when buying the best automotive battery charger. Please share the article and help others also make the right decisions!

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Chief editor at Paul's Gigantic Garage. I came up with this blog to help you to sort out some basic problems your car may be facing and in turn, save lots of cash by some of my DIY tips that I hope will get your car out of its current situation. I also had in mind motor enthusiasts who for the love of cars who are constantly looking for information about cars on the latest trends, questions, fixes, driving, tricks, and accessories.


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