Car battery: test& recommendations (01/22)

you are advised by your mechanic to have the car battery changed? Depending on the type, performance and capacity of the battery will be different prices. Whether your car battery should be changed or not, you can test by the glow of the headlights. How to dispose of a car battery? What different types of car batteries are there for you to buy?

Answers to the most frequently asked questions can be found here in the big car battery test 2022. We present you different car batteries to help you make the right buying decision. In our guide, you will also find helpful tips and tricks on what to look out for when buying a car battery and how to install it afterwards. No matter which type of car battery you choose, we will tell you about the advantages and disadvantages of the different batteries.

The most important in a nutshell

  • The price of a car battery depends on the type, the power and the capacity of the battery. You should of course also check if the battery is suitable for your car.
  • depending on your vehicle, you will need either a lead-acid battery, an AGM battery, a GEL battery, an EFB battery or a lithium-ion accumulator.
  • You can compare and evaluate car batteries based on certain criteria, such as lifetime, capacity, performance and maintenance required.

Car battery test: editors’ favorites

The best car battery from 36 ah for small cars

Car battery: test& recommendations (01/22)

45,53 EUR

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57,00 EUR

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60,00 EUR

Last price updates: amazon.De (30.01.22, 23:17), other stores (30.01.22, 16:31]

The varta B18 blue dynamic car battery has 12 volts and a capacity of 44 ah. The battery weighs around 11.29 kilograms and has a cold test current of 440 amps.

The easy installation of the car battery in the car and its performance inspire many customers who could start their car immediately after installation without problems. The shock and drop proof packaging and the fast delivery of the car battery are also met with enthusiasm.

The best car battery from 50 ah for compact cars

The D24 blue dynamic starter battery from varta has a voltage of 12 volts and a capacity of 60 ah, making it ideal for compact cars. The cold test current of the wet battery is 540 amperes.

Numerous customers praise the packaging of the battery, which is particularly protective and safe. The installation and function of the car battery also turns out to be quick and easy for many customers. The fair price also scores points with buyers.

The best car battery from 70 ah for mid-size cars

Car battery: test& recommendations (01/22)

101,80 EUR

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96,00 EUR

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107,00 EUR

Latest price updates: amazon.De (30.01.22, 21:47), other stores (30.01.22, 16:31)

The silver dynamic line represents the top products of the varta brand when it comes to conventional lead-acid batteries. The manufacturer sees the silver dynamic as suitable for vehicles with high performance requirements, such as when there are many electrical consumers on board or the car has a diesel engine.

The cold test current of the battery has a strength of 780 amperes. With dimensions of 27.8 x 17.5 x 19 centimeters, it corresponds to the standard dimensions in this performance class. The installation is done with the help of a B13 baseboard.

The best car battery from 74 ah for compact and mid-size cars

The varta E11 blue dynamic 574 012 068 3132 car battery has a capacity of 74 ah. The battery measures 278 x 175 x 190 millimeters and weighs 17.87 kilograms. The model is a wet battery with 12 volt voltage. The cold test current is 680 A.

The car battery is compatible with, among others, VW, audi, toyota, volvo, honda, jaguar, mercedes-benz, renault, peugeot, opel, porsche, ford, nissan, land rover and BMW cars. The battery is therefore ideal for various compact and mid-size cars.

The best battrie charger for batteries between 10 and 150 ah

ECTIVE 12V Battery Charger Car 8A Fully Automatic 9-Step IUoU Charger for Car and Motorcycle Battery Accumulator

The ECTIVE 12V battery charger offers charging of a range of batteries: 12V standard wet batteries, calcium batteries, AGM batteries and GEL batteries. It also charges lead batteries between 10 and 150 Ah and is suitable for car and motorcycle batteries. The 9-step charging curve will always improve the performance of the batteries.

The charger can also be used as a trickle charger for 12 volt batteries after a long period of inactivity, for example during the winter. At the same time the charge is very safe due to overcharge protection. At the same time a full charge is always guaranteed. As additional features, the charger offers reverse polarity protection, short circuit protection, overheating protection and overload protection.

The best car battery from 80 ah for larger mid-range cars

The 12 volt car battery from blackmax has a capacity of 80 ah and is suitable for diesel and gasoline engines. With its calcium technology, the car battery belongs to the premium class and is characterized by an excellent cold start performance. The car battery is suitable for cars, trucks and tractors.

Customers appreciate the particularly speedy delivery of the product and the flawless protective packaging. According to buyers, the long life and quick installation of the car battery, in addition to its resistance to colder temperatures, also speaks in favor of the product.

The best car battery from 90 ah for luxury cars

Car battery: test& recommendations (01/22)

148,11 EUR

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187,00 EUR

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207,00 EUR

Latest price updates: amazon.De (30.01.22, 21:47), other stores (30.01.22, 16:31)

The varte silver dynamic AGM car battery has a capacity of 95 ah and a voltage of 12 volts. Thus the battery is particularly suitable for luxury cars. In addition, the car battery has a cold test current of 850 amperes and an article weight of 26.40 kilograms.

The fair price-performance ratio and the flawless functioning of the car battery score points with numerous buyers. The fast delivery, the quick installation and the immediate usability of the car battery speak for the product.

Also interesting

Guide: questions to ask before buying a car battery

Where can I buy a car battery?

  • Amazon.De
  • Ebay.De

What is the cost of a car battery?

You can save money with no-name batteries, but many tests have shown that they can’t compete with the quality and lifespan of high-quality brands and are therefore just as expensive over a longer period of time as if you were to use high-quality batteries.

Here the price depends on some criteria:

  • Battery type
  • Vehicle
  • Performance
  • Capacity

What to look for when buying a car battery?

Before buying, you should take a look at the manual of your car. There you will find useful information and sometimes only certain types of batteries can be installed. If there is nothing there, you are free to choose. In addition to the type, size, performance characteristics and price also play a role.

How to dispose of a car battery?

In germany, there is a battery ordinance, which means that when you return your old battery, you get a deposit fee of €7.50 back. The return and recycling is obligatory by the regulation! It doesn’t matter if you bought the battery in an online store or from a dealer, they must always be taken back.

How do I measure the performance of my car battery??

The simple test

Place your car in front of a wall or glass front in darkness. Turn on the low beam and turn off the ignition of the engine. If the light dims noticeably after a short time, it is a sign that the battery is weakening.

Even if you notice that the engine is struggling to start, it is most likely time for a new battery.

The exact test

With a standard multimeter (available from around 15 €), you can measure the voltage of the battery yourself. Connect the red cable of the multimeter to the positive terminal of the battery and the black cable to the negative terminal.

After the car has not been driven for a few hours, the voltage should still be between 12.4 and 12.7 volts. If it is less than 12 volts, it should be recharged. Replace.

Which car battery fits best for my car?

If you are not sure which battery is suitable for your car, ask your car manufacturer. It is important that you specify the engine as well as the model. It is important to note whether the battery is diesel or gasoline. Diesel cars and gasoline cars have different batteries depending on the power of the engine.

Car batteries have between 30 and 120 Ah. The abbreviation ah here stands for ampere hours. The smaller the vehicle (small car/compact car), the lower the number of amp-hours must be. For larger vehicles (luxury cars/SUVs) this number is higher.

In addition to the battery strength, the actual size of the battery is also important. measure it with an inch stick after removing the old battery. Your new battery must not be too big or too small, because it must not slip during the ride.

Car battery: test& recommendations (01/22)

How to charge a car battery?

  • Water
  • Baking soda
  • kitchen roll
  • Wrench
  • Battery grease
  • Car battery charger

Disconnect the battery first. If possible, you should disconnect the cables from the battery. But this is not always possible. In this case, disconnect the cable from the negative terminal.

If you disconnect the battery in some cars, various devices in the car may require a code after the new battery is reconnected. These codes should be in the car’s manual. If you don’t put it in, you can use the devices like radio, clock etc. Do not use.

Then you have to connect the charger. Not all car batteries are the same, so they require different chargers. Before connecting anything, make sure that the device is suitable for the battery in question.

If you are sure that the battery and charger are compatible, you must connect the cables according to the instructions on the package. Make sure that the charger is not switched on at the same time. The red clamp usually belongs to the plus pole and the black clamp to the minus pole.

The next step is to turn on the charger. Depending on the device, a green indicator light will now be illuminated. If it does not light up, you should switch off the device and check the connections. If you have not attached the clamps properly, the charger will not work properly and you can damage the electronics in your car.

Each battery charger is different, but each has a code that tells you when charging is complete. The manual of the charger explains what you have to pay attention to.

When the signal appears, it is important to disconnect the charger from the mains first, before you remove the clamps on the battery itself.

Now all you have to do is turn on the ignition and check if the car starts. If you do not use the car immediately after charging, you should test the battery again after 12 hours to make sure that the battery is in order.

If you are in a hurry and don’t have enough time to fully charge the battery, you can also jump start your vehicle by connecting it to another car’s battery.For this you should have a jumper cable in the car.

Step what to do?
1 clamp the red jumper cable to the positive terminal of the dead battery.
2 now connect the other end of the red cable to the positive pole of the car that supplies the power.
3 now clamp one end of the black cable to the negative pole of the car with the working battery.
4 look for an unpainted spot of metal on the car that is being jump started (not too close to the battery). Clamp the other end of the black cable to this point.
5 start the engine of the car that is being jump started. It can take a few minutes to charge the battery to the point where the car will start.
6 switch off the engine and remove all cables in reverse order to how you attached them.
7 start the engine of the car that has been jump started. If the jump start is successful, the engine will start. Then drive around for 10 to 20 minutes so that the engine can charge the battery.

How long does a car battery last??

the lifetime of car batteries is limited. According to an ADAC test, expensive products in particular are characterized by a long service life. According to the ADAC, the average life of a car battery is between four and five years.

How to install a car battery?

When installing a car battery, it is recommended to use a good clamp and to use a pole spray or pole grease. The power cable for the output stage hangs directly on the car battery. In any case, the fuse must be installed no later than 30 cm after the battery, otherwise the insurance coverage will not apply!

The fuse can be easily hidden between the components in the engine compartment. Then put the cover back on and it’s good to go.

How to protect a car battery from the cold?

If the daily commute is only a few miles, with rear window and seat heaters running, there is not enough alternator power to charge the battery. First sign of approaching battery death: the starter turns only tiredly on the engine.

Car battery: test& recommendations (01/22)

decision: what types of starter batteries are there and which is the right one for you?

The car battery is there to allow a motor vehicle to start. This is why they are also called starter batteries. There are 5 different types of starter batteries:

  • Lead-acid batteries (lead-acid accumulators)
  • AGM batteries
  • GEL batteries
  • EFB batteries
  • Lithium-ion accumulator

It often happens that a situation forces you to take a closer look at car batteries. We want to help you approach this challenge in a more structured way.

Not every type of battery is suitable for your car. Each starter battery has its own advantages and disadvantages. In the following section, we will delve a little more specifically into the material and explain what is really behind the types of batteries listed. This should help you to find out which starter battery is really suitable for your car.

For this purpose, we will introduce you to all the types of starter batteries mentioned above, and clearly present their advantages and disadvantages in each case.

What is a lead-acid battery and what are its advantages and disadvantages??

A lead-acid battery is a component of any motor vehicle with an internal combustion engine. Typical names for lead-acid batteries are: battery, car battery, motorcycle battery, starter battery or lead-acid battery. But the correct term is: lead-acid battery or lead-calcium battery. Lead battery.

Lead-acid batteries have electrodes made of lead and lead dioxide. sulfuric acid acts as the electrolyte. The cells are placed in an acid-proof case. These car batteries are largely maintenance free.

  • Good price-performance ratio
  • Lifetime can increase up to 10 years (normally batteries last around 3 years)
  • Maintenance-free
  • Rechargeable
  • Sensitive to cold: battery check before winter required
  • Not suitable for vehicles with automatic start-stop systems
  • Not suitable for electric cars and motorcycles

When charged, the positive terminal plate is made of lead dioxide (pbo2) and the negative terminal plate is made of bare lead (pb).

When discharging, finely distributed lead sulfate (pbso4) is formed on both plates, which is converted back into lead dioxide or lead oxide during charging. Converts back to lead.

What is an AGM battery and what are the advantages and disadvantages?

The abbreviation AGM stands for absorbent glass mat. This type of battery is protected against electrolyte (acid) leakage thanks to the built-in fiberglass fleece.

AGM batteries are ideal for motorcycles and cold starts and are often used in cars with start-stop systems. However, the low heat resistance can lead to problems in the engine compartment.

  • Withstand very low temperatures
  • Safer: no acid leakage during tipping or in case of damage
  • Longer life than conventional lead-acid batteries
  • More charge cycles: suitable for vehicles with automatic start-stop systems
  • Maintenance-free (u.A. Due to automatic gas discharge)
  • Heat resistant only up to 55°C
  • High price

The sophisticated AGM microglass fleece battery is, so to speak, the nonplusultra among car batteries. It provides outstanding performance for powerful engines and modern equipped cars, which also have an elaborate battery management system with brake energy recovery and is ca. 3x longer in service than conventional starter batteries.

How does a GEL battery work and what are its advantages and disadvantages??

A gel battery is a special type of lead-acid battery in which the liquid sulfuric acid electrolyte is bound with silicic acid. The gel battery is also completely sealed, so you can not refill water.

  • High power peaks (lead-gel batteries are able to generate very high currents)
  • Particularly robust construction (low maintenance and particularly resilient)
  • Compared to lithium variants, the lead-gel battery has a significantly higher weight
  • Does not tolerate temperatures above 45 degrees very well

Due to this design, there is no acid stratification and therefore no loss of capacity due to segregation. However, the internal resistance of lead-gel batteries is higher than that of open lead-acid batteries, making them less suitable for handling high currents as z. B. Starter battery to supply.

How does an EFB battery work and what are its advantages and disadvantages??

EFB batteries are lead-acid plate batteries, but optimized for use in vehicles with automatic start-stop systems.

Unlike conventional lead batteries, the enhanced flooded battery is equipped with a so-called polyester scrim.

  • Lower internal resistance: thus longer capacity even at standstill
  • Safer: no acid leakage when tipping or in case of damage
  • Longer life than conventional lead-acid batteries
  • insensitivity to cold: starts even in the depths of winter
  • More charging cycles: suitable for vehicles with automatic start-stop system
  • Maintenance free (u.A. Due to automatic gas discharge)
  • Costly compared to conventional lead-acid batteries
  • Not suitable for vehicles with recuperation technology

It is a special braid that sits on the positive electrode plate of the battery and holds the active material in place. In addition to faster charging and discharging, the batteries also have a longer shelf life.

The EFB (enhanced flooded battery) is virtually an upgrade of the conventional lead-acid battery. A small EFB provides consistently high power in standard equipped cars. Batteries with EFB technology have a longer life compared to standard car batteries. Vehicles with start-stop systems require an EFB or AGM starter battery.

How does a lithium-ion accumulator work and what are its advantages and disadvantages??

Lithium-ion batteries do not differ fundamentally from lead-acid batteries in their general construction.

Only the charge carrier is different: when the battery is charged, lithium ions "migrate" from the positive electrode to the negative electrode of the battery and remain "stored" there until the battery is discharged again.

  • High energy density
  • Tolerate a large number of charge cycles
  • Do not exhibit any significant memory effect
  • Enormous weight
  • High price
  • Not yet satisfactory charging capacity

High-quality graphite conductors are usually used as electrodes. But there are also variants with iron conductors or cobalt conductors.

Lithium ion batteries are still relatively new for use in cars. They are mainly used in electric cars. However, due to their compact size and low weight, they are also popular in motor sports and motorcycles.

A not insignificant shortcoming is the range of the battery. However, development still has a lot of upward potential in this respect. The lithium-ion battery is promising and may even be the future of the car battery, provided the range problem is solved.

Buying criteria: these are the factors you can use to compare and evaluate car batteries

In the following, we would like to show you which factors you can use to compare and evaluate car batteries. This will make it easier for you to decide whether a particular battery is suitable for you or not.

In summary, these are:

  • Lifetime
  • Capacity
  • Power
  • Maintenance
  • Suitability for start-stop system
  • Short distances?

In the following paragraphs, you can read about the individual purchase criteria and how you can classify them.

Lifetime

In the summer, we are used to turning on the air conditioner and turning up the radio a little louder. In winter, the seat heating system also comes into play. Unfortunately, all these power guzzlers not only increase the comfort of driving your beloved vehicle, they also increase the load on the battery.

"a car battery usually reaches the end of its life after four to five years," says arnulf thiemel from the ADAC technical center in landsberg, Brandenburg.

Due to the higher load caused by air conditioning, seat heating or infotainment systems, for example, today’s batteries fail sooner. "the battery doesn’t like the frequent charging and discharging cycles associated with this," said thiemel.

Capacity

Most car batteries are still lead-acid batteries – but today they have to be much more powerful. Therefore, it is important to know the "state of health" of your starter battery.

Before buying a car battery, it is important to find out what capacity it should have. This value is given in ampere hours (Ah) and indicates how much current the component can store.

More precisely, it indicates the amount of current that can be drawn at 27 degrees celsius for 20 hours up to a voltage of 1.75 volts per battery cell. A look in the car’s manual or at the old battery is usually enough.

If you need a larger capacity than the old battery, you should ask your dealer or a battery dealer for advice. Because the maximum capacity depends on the performance of the generator, i.e. the alternator.

It goes without saying that the correct nominal voltage of 12 volts must be maintained. It is obvious that a 24-volt truck battery will inevitably damage a car’s electrical system.

Power

With batteries, the larger the battery, the more powerful it is.

Have you retrofitted your vehicle equipment, which now results in increased power consumption, such as.B. A parking heater or powerful car hifi system, then you need to "upgrade" your battery pack. This means you need a car battery with a higher capacity (more ampere hours [Ah] – power in time).

Maintenance

Almost all modern batteries carry the "maintenance-free" label. Nevertheless, you should pay attention to them from time to time. This means that they are not deeply discharged.

This can happen when some cars leave their dipped headlights on overnight without automatic shutoff. If the starter motor only makes a soft clacking noise, the battery has been deeply discharged and in most cases has suffered a "crack" that limits its performance from then on.

A defective alternator regulator, which constantly overcharges the battery, also reduces its service life and can even cause it to boil.

You should pay special attention to the following, despite "maintenance-free":

  • Car batteries must not be left tilted for a long period of time. This should be remembered when a vehicle is jacked up at an angle or placed on ramps in winter, for example, in order to be able to work better. Because even accumulators without sealing plugs can lose corrosive acid through the vent labyrinth, which damages the surrounding sheet metal
  • When shaking, acid can escape through degassing holes – be careful when transporting (best to use gloves)
  • When using a start-stop system, observe the correct sequence of connections
  • Avoid electrostatic charging of the battery housing, because despite constructive measures, the possibility of a spark jumping into the interior cannot be ruled out. Therefore, you should never wipe a battery with a dry cloth
  • Deep-discharged batteries are not necessarily defective; they should be connected to a suitable charger (available at many ADAC offices)
  • If a battery shows a total failure, you should check the charging equipment of the vehicle (generator, regulator, wire connections) to prevent damage to the new battery in case of a fault in this area
  • Before changing a battery, consult the operating instructions: some radios, alarm systems and control units (e.g. for electric windows) have to be reinitialized after reconnection with code numbers or special operating steps
  • In the case of a new battery, treat the terminals with acid-free grease or, after connection, with a protective varnish designed for this purpose

Car batteries contain toxic lead, environmentally harmful additives and corrosive acid. Therefore, they are subject to a deposit and must be sent to the recycling system required by law. Nearly 99 percent of the materials in the case and interior can be recycled.If you want to take care of your battery, you can use the chargers offered at many ADAC offices, which help to maintain the starting ability, provided the battery has no significant damage.

Suitability for start-stop system

In principle, modern calcium-lead batteries can be used for all types of vehicles. However, cars with start-stop technology require special and more expensive AGM batteries that can withstand the stress of additional starts and the resulting discharging and charging processes.

The start-stop technology is linked to a battery management system that draws a lot of energy from the car battery. So this technology needs a powerful battery that can withstand these demands.

For vehicles with a start-stop function, the AGM battery is therefore recommended. These are more powerful, 3x more cycle resistant and have more power than a standard battery. Small start-stop systems use EFB batteries.

Do you use the vehicle frequently for short trips??

Short trips are bad for car batteries. They give off a lot of energy for the starting process and the equipment, but do not have enough time to recharge during the journey.

Did you know that you should never dispose of a car battery yourself??

Batteries contain a lot of dangerous substances that you should never come into contact with. so please always leave the disposal to a professional!

Therefore, the same applies for short-distance drivers as for equipment upgrades: use a battery with the next higher ampere-hour rating. In addition, a charge level indicator and charge maintenance device for the car battery is highly recommended to keep track of the charge level and recharge when needed.

Trivia: interesting facts about the car battery

Who invented the car battery?

Around 1800, alessandro volta succeeds in developing the first working power source. To convince the public of his invention, he traveled to paris where he demonstrated his voltasche column.

The voltasche column is the basis for every battery we use every day.

How a car battery works?

there is an excess of electrons at the negative terminal of the battery. There are too few electrons at the positive terminal. When the poles are connected with a wire, the electrons flow from the negative to the positive pole.

If a light bulb or other device that is powered by electricity is connected in between, the electrons flow through and drive it. For example, the light bulb begins to glow.

Why does a car battery need to be serviced??

The main enemies of your car battery are extreme cold and exclusive short distance use.

If you drive longer distances from time to time and your car is parked in a garage protected from the cold in winter, this will extend the life of the battery.

Did you know that an electric car only wins against a verbenner engine in the CO2 balance after 8 years??

This is mainly due to the costly production of the lithium-ion batteries. Disposing of these batteries also proves to be extremely difficult.

What does the amperage on the car battery mean??

Car batteries have between 30 and 120 ah. The abbreviation ah stands here for ampere hours.

The smaller a vehicle is (small car/compact car), the lower the number of ampere hours must be. For larger vehicles (luxury class/SUV) this number is higher.

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