The heat wave can kill your car battery and how to avoid it

The heat wave that is scorching Spain can also have negative effects on your car (electric or not). There are several elements of your vehicle that can suffer damage due to extreme temperatures and the sun , so it is necessary to check before starting it that the heat has not interfered so much as to affect the safety of our car. And there, as far as the electrified ones are concerned, the batteries can also suffer (and for that you have to take care of them).

You have to try to lower your temperature

The heat wave can kill your car battery

Yes; We know that controlling the temperature of the car engine is one of the tasks that every driver must carry out in his vehicle. More so now in the middle of summer, where one of the biggest concerns is to make sure that the engine temperature does not rise. But in an electric car that is not enough.

Thus, like cold, heat is a clear enemy of your car. High temperatures affect its performance and can be the cause of various breakdowns in summer. The heat and the sun deteriorate both the bodywork and the interior and are the cause of the loss of elements and, in the same way, also the battery .

In this sense, every driver has verified on occasion that, after leaving the car in the sun for a long period of time, the steering wheel even burns. Hitting the road in these circumstances is a risk and before starting the march it is advisable to try to lower the temperature of the passenger compartment. And when it comes to recharging the vehicle , this is no less.

The heat also reduces its autonomy

Given the traditional reluctance of brands to recognize the specific loss of autonomy of their batteries in these conditions, the company FleetCarma, specialized in telematics for electric vehicles, verified back in 2013 how the Nissan Leaf and the Chevrolet Volt left 40% and a 35% of maximum range, respectively, if they circulated with temperatures above 30 degrees positive.

In the same way, driving a car with these electrified characteristics (100% pure or hybrid), means that, when turning on the air conditioning, a significant number of potential kilometers to be covered are lost. Or what is the same; Although there are cases in which low winter temperatures reduce the autonomy of an electric car by more than 30% , what happens in summer will depend above all on the efficiency of the cooling system it has.

Cuidar batería coche eléctrico

Thus, what we must take into account is that the optimal working temperature of the batteries is between 10 and 30 degrees, so that when they drop below zero or reach more than 45 degrees , there is a decrease in their autonomy.

Currently, the most modern cars have systems that protect the management of accumulated energy by the car’s intelligent systems, such as the instructions given by the navigation system to the user to be as efficient as possible. , alerts in the instrumentation about the battery’s own temperature and how it can affect autonomy.

Recharge in the coolest hours

Much of the effects of extreme cold and heat on the performance of these vehicles could be neutralized with polymer batteries and the more recent solid-state ones, in which the liquid electrolyte is replaced by a solidified one, logically less sensitive to temperature.

Likewise, the industry trusts that these latest batteries, still in the research phase as well as those that use graphene-protected electrodes, will put an end to autonomy problems, as well as the fires that have occurred spontaneously in cars from time to time. electrical.

So, what recommendations do we have to take care of and extend the life of the battery as much as possible? Among the most considered options we have to recharge during the coolest hours : at night or first thing in the morning, when it is less hot and the heating process of the batteries is not accompanied by high temperatures.

We can also do by turning on the air conditioning before leaving: if you do it during recharging, the system will consume power from the network and not from the battery. That way they won’t overheat . In addition, many electric cars have a pre-cooling system for the passenger compartment. And, if we have the opportunity, do it in protected points, and choose a charger protected from the sun. Thus, both the charging point and the vehicle will suffer less.