Best Car Battery Chargers

(Reviews & Buying Guide)

The car battery chargers are usually at home in the garage and are connected to the household current to charge a battery. In many cases, they also maintain its charge. Your battery needs regular attention, and an auto battery charger should be used regularly, not just when your vehicle won’t start.

Many people have found themselves unable to start their vehicle due to a completely discharged battery – a minor problem, but particularly annoying! If you use your car little, or only for short trips, or if it is a model whose headlights do not turn off automatically, the risk is all the greater if your battery is found to be damaged. “flat” day. To avoid having to call a mechanic, which would waste your time and money, it is advisable to always have a car battery charger on hand. Fairly affordable and compact, this very easy-to-use tool may allow you to get out of a bad situation with your car or another vehicle. We have reviewed few of them and listed best car battery chargers in this article.

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Best Car Battery Chargers


2- NOCO Genius1


4-Battery Tender Plus

5-Schumacher SC1281

6-BLACK+DECKER Automatic Battery Charger

Things Consider When Buying a Car Battery Charger

How does a battery charger work?

How to charge a battery with a charger?

Best Car Battery Chargers

This battery charger can charge your car battery with 750mA and 12V supply. Once the battery is fully charged, it will automatically stop charging and switch to float charging mode to prevent overcharging and safe maintenance. It can be easily used to charge car, motorcycle, or boat batteries.

Battery tender is the most trustable and highly recommended brand by the car manufacturers. Battery tender junior is a simple charger with no complexities that can cause trouble in a short time. You can plug your battery into this charger easily with a 12-foot long cord.

It is a fully automatic battery charger with a floating feature that will stop charging, but it charges with the only 0.75A, so you can not quick charge your batteries. This charger is suitable if you can bear a long charging time, but ultimately it is better for long-lasting battery health.

Key features:

  • Float charging mode
  • Simple interface

It is the best-selling battery charger available right now. It is much reliable battery charger that makes the battery charging process relatively easy, and it costs less. The most important feature of this charger is that it works with all kinds of batteries, including Li-ion, AGM, and deep cycle batteries. It can charge at 6V and 12V, and once the battery is completely charged, it maintains the battery using the trickle charge feature to keep the battery at a fully charged status for a long time.

It is a smart charger as it senses the battery’s temperature and adjusts the charging current accordingly. The other key feature of this battery is that it can charge completely dead batteries that other automatic chargers cannot do. It uses its force charging mode to allow manual charging. During this period, it will continuously charge the battery unless you turn it off.

Key features:

  • Smart battery charger
  • Forced charging mode

battery charger

It is a fully automatic battery charger suitable for cars and motorcycles, ATVs, boats, lawnmowers, etc. It is simple to use; simply plug it with a battery and leave everything else on this charger. The onboard microprocessor continuously detects the battery state of charge and automatically stops charging once the battery is fully charged. After this, it switches to float charging mode to keep its maximum state of charge and voltage.

This battery charger comes with safety features for safe use. It prevents overcharging by turning off the charging once the battery is charged. It also prevents the reverse polarity connection and short circuit connection. The constant pulse current maintenance feature will avoid excessive charging and discharging and ultimately improves battery health. This charger is based on an efficient energy consumption design and comes with quick release adapters like ring and alligator clips.

Key features:

  • Energy-efficient design
  • Excellent safety features
  • Certified adapters

battery charger

Battery tender plus is one of the best car battery chargers offered by Deltran. It is a compact charger ideal for batteries that are rarely used like ATV and golf carts but can also charge regular car batteries. It is not an ultra-fast battery charger, but it can charge your battery with 1.25A that is better for its overall health. It can charge 12V and 6V batteries quite easily.

An onboard microprocessor detects the battery state of charge and decides its charging mode according to the actual battery percentage. Once completely charged, it will prevent overcharging by stopping the charging process.

There is a built-in safety feature in this charger that makes it simple and safe to use daily. It comes with a reverse polarity protection feature and spark-proof clamps. The reverse polarity protection detects the wrong terminal and stops the charging until the correct terminals are connected. It gives the warning to correct the terminals. This feature prevents overheating and the explosion of battery incase of wrong terminals connection.

Key features:

  • Reverse polarity protection
  • Spark proof clamps
  • Overcharging protection

battery charger

Some battery chargers are only made for home use as they can only charge batteries with little current, while some of the chargers are made for garages where they can charge the batteries quickly. But if you are looking for both features in one charger, this Schumacher SC1281 is the best choice.

Schumacher SC1281 offers a high charging current and a handy design. It can charge the car battery as slow as 2 amps and as fast as 12 amp. It can also provide 30A for quick charge and even 100A for jump starter. Despite having such a large charging capacity, it weighs only 12 pounds and is portable enough to carry.

Besides, it is an automatic charger, and it will stop charging once the battery is fully charged and avoids overcharging. After this, it will switch to float charging mode. It has the safety feature of reverse polarity, which detects the wrong terminal connection and stops charging.

Key features:

  • Fast charging
  • Can be used as a jump starter

battery charger

This battery charger is small and portable, which is also light on your wallet due to its budget-friendly price. Due to its small size and weight, you can easily fit it into any parking spot.

It can charge the battery with 1.5A, and it’s quite enough to maintain your battery for the long term usage. However, it cannot charge the battery very quickly due to its current imitation. But due to its affordable price and portable size and weight, it is the best choice for home use. It also contains the safety feature of reverse polarity protection, which will stop charging once the wrong terminals connection is detected.

Key features:

  • Affordable
  • Small and lightweight

Things Consider When Buying a Car Battery Charger

When looking for a car battery charger, you will find a wide range of models. However, you should know that not all of them will serve your battery, so you must know how to choose the most appropriate one.

Battery Type:

Today, most car battery chargers are capable of charging different types of batteries. However, this is not the case all the time, so you must make sure you choose a compatible model.

Note that there are wet cell, maintenance-free, AGM, gel, or valve regulated (VRLA) batteries. Almost all chargers work with all except gel ones. Batteries of this type generally need a different charger, although chargers for gel batteries can be used for other types of car batteries.


Another critical aspect to consider when looking at models is the charger voltage, as this will tell you what type of battery you can charge depending on the type of vehicle. The most common are 12V car battery chargers, as this is the voltage that most everyday cars operate with. But are not the only ones. You can also find 6 V and 24 V models. The 6V chargers can also be used for motorcycles and other utility vehicles, but you should know that this model will take much longer to charge your car. 24V chargers, meanwhile, are intended for heavy vehicles such as trucks and tractors since they use much more powerful engines.

Battery range:

When choosing a car battery charger, you should also pay attention to the range of batteries they can charge. These devices come with different powers, and depending on your needs, you will have to choose a more or less powerful model.

But how do you know what power you need? For that, you must verify what the specifications of the car battery are. The batteries come with numbers accompanied by the letters AH, which means the capacity in Ampere Hours (Ah) that the battery has. Therefore, if the one you have is 56 Ah, you should buy a charger with a power equal to or greater than this amount. It is recommended that it be slightly higher.

Amps Power:

On the other hand, if you choose a battery charger that is also a starter, you should look at the ampere power it offers. The amperage will tell you what the tool’s starting capacity is, and this way, you will know if it works or not for the type of vehicle you have.

Size and weight:

Another important factor to consider in this type of tool is the size and weight since they are devices that you should always carry in the car. If it has a compact size, you can store it in any space, without representing a problem.


The portable car battery charger you choose should have safety features that can help prevent:

  • Battery damage
  • Short circuit protection
  • Reverse polarity
  • Overcharging
  • Overheating.

The vast majority of chargers already include security measures to avoid any accident. But it never hurts to look closely and make sure everything is correct. For example, it is important to see whether a model has a system that prevents short circuits, for example. And do not forget to check if the battery is well protected against external factors and has insulators to prevent it from giving you an electric shock when using it.

Look at the ease of use of the charger:

As you may have already seen, on the market, there are many models to choose from, but not all give the same results. Buy a model that is not very complicated to use, especially if you are not an expert in this type of thing. If you don’t want to complicate your life, it is best to buy a plug and play model.

How does a battery charger work?

The car battery chargers work really simple. These devices consist of an internal battery similar to the one found in cars, but fully charged. It is equipped with two cables, which have a clamp at each end.

These clamps are placed on the battery’s positive and negative terminals to initiate the transfer of energy. In this way, the car will be able to have enough energy for its engine to start.

How to charge a battery with a charger?

It is essential to know how to charge the car battery with these types of chargers. The way to do this may vary depending on the type of charger. However, there is a general process that will work in either case.

These are the basic steps that you should follow:

  • Remove the negative battery cable from the negative terminal and repeat the procedure with the positive cable. Never do it, on the contrary.
  • Verify that the charger is not plugged into an outlet or that the switch is not turned on.
  • Once this is done, you must connect the charger’s positive cable to the positive terminal of the battery.
  • Now connect the negative charging cable of the charger to the negative terminal.
  • The charger is already installed to start charging, so you have to turn it on and select the appropriate configuration (if the model allows adjustments).
  • During the charging process, check the charger frequently to make sure there are no problems. While the charging process continues, do not touch or move the cables.
  • Once the corresponding charging time has passed, you must turn off the charger and unplug it before removing the cables.
  • Disconnect the cables in reverse order as you laid them: negatively charged first, then positive.
  • Reconnect the positive battery cable and then the negative cable.


The above reviews on the best car battery charger will certainly help you find and choose the right kind of product for you. We have also provided a few critical aspects while selecting a car battery charger and how to use those chargers. You can choose the right kind of product as per your requirements.

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