5 Best Car Battery Chargers And How To Choose [Comparison 2021]

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car battery charger

The car charger is an essential equipment, an object that can save your life and help you drive in complete safety. Choosing the best car charger allows you to make sure you don't damage your batteries.

A poor quality car charger can accelerate the wear and tear of your battery or even cause it to explode. It is therefore recommended to pay close attention to the characteristics of the car charger.

The risks of making the wrong choice are manifold. In particular, you may end up with a model that does not charge properly, which gradually wears down the battery plates, which offers too long a charge time, and many more.

Our guide helps you recognize a good battery charger, and make the difference between reliable models and those that aren't.

Buying Guide - How Do I Pick a Car Battery Charger?

Thanks to a battery charger, you will be able to restart your vehicle whether it is old or that has been sitting idle for months (or years) without difficulty.

There are hundreds of charger models out there and it's not always easy to find your way around.

If you haven't ever purchased an automotive battery charger, it can be hard to know where to begin. How do you find the one that will exactly suit your budget and your needs? When you know the kind of battery charger you want, you can then decide whether you want to buy a new car, lease a new car, or buy a used car.

To help in your decision we tested them and made thih buying guide with the best battery chargers.

This article is not the classic top 10 car battery chargers. At the end you will know how to choose a car battery.

1. Check The Shape Of The Battery Charger

If you plan to always carry this device with you in your car to avoid any battery failure, look for a complete, compact and lightweight model. Then consider the shape of the instrument. A good portable charger should be small, not very heavy and above all practical.

2. Check The Security Features

Most battery chargers include safety measures to avoid any type of accident. But it is always a good idea to check. Check if the model you are interested in contains a system that avoids short circuits.

3. Check That It Is Easy To Use

Look for a battery charger model that is not too complicated to use, especially if you are not an expert in the sector. If you wish not to complete your life, buy a model in which it is enough to plug in and use.

Maybe look for a tool that includes LED lights that allow you to understand the state of charge of the battery. And once the operation is complete, a light will indicate that the battery is charged.

4. Check The Battery Voltage

Choosing a battery charger model according to the voltage of the battery to be charged is also a tip that you should consider. This voltage is expressed in Volts (V) and you just need to match the voltage of your battery with that of your charger. If your car battery has a voltage of 12 V, then you will need to purchase a 12 V battery charger.

You might want to charge a 12 volt battery, and another with a different voltage (6 volts for example). This is not a problem, as several brands offer models capable of charging 6-volt and 12-volt batteries. So you just have to choose the voltage you need.

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What Are The Different Types of Battery Chargers

There are 2 main types of battery chargers:

Automatic Chargers

Automatic battery chargers like the Suaoki 4A or the Noco range are the most recommended, especially for their versatility and ease of use, as we have verified in our tests. In many cases they can also check the condition of the battery and automatically adjust the charge values.

They are preferred by motorists because, on average, they can charge a battery in less time without damaging it. Almost all of them have various automatic programs, including even a mild desulfation or a specific recharge for batteries that operate at more extreme temperatures.

The procedure is really very simple, but you must always read the manufacturer's instructions to be able to use it correctly. Once the functions have been set (if necessary), connect the cables to the battery and wait for the end of the charge.

Classic Chargers

They are larger and made of solid steel. They are also reliable and powerful but require monitoring. Indeed, they will not automatically stop charging when the battery is full.

What Is The Best Car Battery Charger?

If you don't have time to read the article, take a look at our list of the best car battery chargers with a comparative price table.
Pos Image Product Price We Like
1 noco GB40 genius Noco GB40 Genius $99.95 Easy to use
2 black and decker BM3B Black And Decker BM3B $14.94 Cheap
3 CTEK MXS 5.0 CTEK MXS 5.0 $105.05 High tech battery charger
4 dr. auto t242 Dr. Auto T242 $99.99 Good for emergency
5 Suaoki battery charger Suaoki $54.99 Small Car Battery Charger

Most car charger brands on the market today offer the best car battery charger with a number of features that will not only help you restore your vehicle's charge after it has run out, but also maximize its range.

Car chargers are undergoing significant changes and are integrating more and more functions including the jump starter, automatic chargers and solar chargers. Making a comparison allows you to make the best choice among all the brands and models of car chargers available on the market.

To save you time in your research, we've put together a list of the best products on sale. This guide brings together all the information relating to the technical characteristics of each car charger model.

Here is our car battery charger reviews and the comparative of the best car battery chargers:

1. Noco GB40 Genius: Fast Car Battery Charger

The NOCO GB40 is one of the fastest car battery chargers. It has the advantage of being light and portable. It can recharge 12 volt batteries. It is also an excellent battery booster (up to 20 times in seconds). Thanks to its anti-error functionality, the anti-spark system, as well as the reverse polarity protection, it is suitable for both experts and novices alike.

Clamps, a USB charging cable and a microfiber storage bag are provided with the purchase of the charger.

2. Black And Decker BM3B 6V and 12V Battery Charger/Maintainer: Cheap Car Battery Charger

This car battery recharger has an input voltage of 230V, an output voltage of 6 or 12V and an output current of 1.2A.

The Black & Decker BM3B charger is very popular with its users. It is both small and practical, with charging indicator lights and comes complete with pliers and ring terminals.

You can easily find it at Walmart.

3. CTEK MXS 5.0: Fully Automatic Auto Battery Charger

The CTEK MXS 5.0 is a high tech battery charger. It is able to resolve a number of inconsistencies related to batteries. Indeed, it is a perfect charger for large demands.

This model can diagnose your car battery to determine if the battery is capable of receiving and holding charge. This charger is equipped with a specific reconditioning function which is responsible for restoring stratified and completely discharged batteries.

The MXS 5.0 charger is an automatic model capable of producing 0.8 A or 5 A for all 12 V 110 Ah batteries. It is a battery charger that protects the electronic system of the vehicle.

Therefore, you will not observe sparks. Indeed, it is fully protected against reverse polarity and possible short circuits. In addition, this independent auto tool is offered for sale online with a 5-year warranty. It comes to you with crocodile clip cables, eyelet cables and a mains plug power attachment.

4. Dr.Auto T242: Emergency Car Battery Charger

All drivers should have the T242 to help them out in an emergency. This portable starter can indeed restart your vehicles up to 60 times. It is suitable for starting all cars and other 12 V vehicles.

This includes trucks, motorcycles, boats, sleds, etc. Its TurBooster technology works on the basis of a special technique called HVM. This allows it to be considerably more powerful than regular battery packs.

Suaoki Battery Charger Maintainer 6V / 12V - 4A: The Small Car Battery Charger

The Suaoki porable charger provides an 8-step charging process to charge batteries of different types. It detects the battery voltage and suggests whether 6V or 12V should be used for charging.

When the battery has been fully charged, it will automatically reduce the current and become, let's say, "a helper" for your battery. Here are some features of the product:

  • Intuitive LCD screen
  • The instrument has an LCD screen which shows the state of charge on the display very clearly. You can consult the charging data, voltage and diagnostic information in real time! Furthermore, being backlit you will be able to use it even in low light conditions!

Other characteristics:

  • IP65 waterproof for long-term use
  • Reverse polarity protection for safety use
  • Over temperature / over charge protection device
  • Detect the sulfur battery and try to repair if possible

How To Take Care Of A Car Battery

Because prevention is better than the cure, here are some tips to take care of your car battery.

Turning off the car's headlights at night helps maintain the correct level of charge. Most automotive batteries require regular maintenance. In particular, it is essential to check the electrolyte level and density. The electrolyte is a solution of hydrochloric acid and water.

This substance should always cover the lead plates in each cell. Exposing the plates to air can cause problems over time. If the density is low in all cells, it indicates that the vehicle needs a charge, or is shutting down, while a low density in a single cell indicates that the battery has internal problems.

Frequently Asked Questions

How To Attach A Battery Charger To A Car Battery

When the battery is fitted to the vehicle:

  1. Start by turning off your vehicle's engine and unplug your battery
  2. Connect the + terminal (red cable) of the charger to the + terminal of the battery
  3. Connect the - terminal (black cable) of the charger with the - terminal of the battery
  4. Turn on the charger!

When the battery is out of the vehicle:

  1. Connect the + terminal of the battery to the + terminal of the charger (red cable)
  2. Connect the - terminal of the battery to the - terminal (black cable) of the charger
  3. Turn on the charger!

Choose The Best Vehicle Battery Charger

No one is safe from a battery failure. Forward-thinking drivers can't do without a proper charger to get them out of this mess, when it does arise.

If you are planning to buy a battery charger soon and are looking for all the interesting information on the subject, we saved you time. Now you know the most important features for you to consider. Now take a minute to read our article on the best dash cams.

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