After all, does fast charging damage the battery of electric cars? Look


It’s been a while since the eletric cars are among us. And they have several attributes that can be important when buying. The fact that they are cheaper is one of them. But it is important to know the types of chargers. those of direct current are the fastest. However, they can cause problems.

eletric cars
See more about types of chargers for electric cars (Photo: Michael Fusert/

See how using fast charging can damage your electric car battery

This is a growing market all over the world. And here in Brazil the story is not very different. In the first quarter of this month, for example, 1,288 cars with 100% electric engines (data from ABVE). Not to mention that the offer has also increased in recent years. And both numbers are expected to grow in the future.

eletric cars
Photo: Bob Osias 2/

Each vehicle has a different range. And to use your electric car, you need to charge it. The time required for this process to take place will depend on the type of charger you are using. One of them is called AC charger (AC or AC). This is the most common.


This is divided into levels 1 and 2. Some cars come with it as standard. (portable chargers) and you can use in simple household outlets. Not to mention that most of the electric stations have them. However, the waiting time to charge the vehicle battery should be longer.

This is because the battery uses direct current. That is, the system will still switch from AC to DC (direct current). In this case, the exchange is made through a AC/DC inverter.

DC chargers and Wallbox

Photo: Roberto H/

To get faster charging, you can use a direct current charger (DC or DC). This is called level 3. In this case, the power does not need to go through the inverter first. In certain cases, using it can cause the car to fully charge in less than 1 hour.

This type of charger can also be found in electrical stations. But it is good to point out that not every vehicle accepts this type of current. We can also highlight the wall box.

He is quite similar to a portable charger and can be installed on the wall of your house. This one can also stand out for its good potency. The speed will depend on the charging power (between 3.7 kW and 22 kW).

battery problems

eletric cars
Photo: Dcbel/

Electric cars are a good mobility solution because they are economical. However, it is always good to take care of the health of the vehicle. Especially if you use direct current chargers frequently. As mentioned above, these fast chargers can be useful for those who need to carry out fast charges.

However, they can be harmful to your car battery. This is what a study carried out by the Idaho National Laboratory. She used four units of the Nissan Leaf to take the test for one year.

Since two of them were porters with level 2 (twice a day) and the others used level 3 fast chargers (twice a day). They drove the vehicles for 80,467 km. The conclusion was: the batteries of the cars that used the Charger Level 2 had a 23% loss of its full capacity.

In the case of vehicles that used the other charger, the drop was 27%. Who carried out a similar test was the company Geotab shows this very well.

Photo: Myenergi /

A car that used level 2 loader a 100% electric vehicle that used a clevel picker 1. According to her, the battery of the first one wore out 0.9% more than the first. That’s after a year. In the case of a car that uses level load, it will have a wear of 1% (compared to car 2).

The company says that the battery can be affected because of how often the owner of the vehicle uses DC chargers to recharge. The fact of living in warmer places can also affect. Finally, the recommendation is to reduce the use of direct current chargers and not let the battery run out.

With information from The Next Web and Neo Change

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Peter Giordan

Peter GiordanJournalist graduated from the Methodist University of São Paulo in 2017. Editor of the Garage360 since 2021, where he has since accumulated experience and research on the automotive sector. Previously, he worked in newsroom, press office, football blog and sports website.