Why Does My Car's Battery Heat Up?

Sometimes you might have noticed that while driving on the road, but your car’s battery sign reaches a hot level as soon as you begin to speed up. This is a sign of an overheated battery that can be an alarming situation and might cause a vehicle breakdown or fire inside the car.

So if you find yourself in a similar situation, it is better to know how to deal with the hot battery or call a professional roadside assistance service. Avoiding such a situation is possible if you know the reasons behind your car battery heating up. There might be several reasons as to why your car’s battery may be heating up. This is a more common scenario in summer.

This blog post mentions why your car battery heats up, especially in summer, and what you can do about it.

There May Be A Coolant Problem

One of the most common reasons why your car’s battery may be heating up is that there may be a problem with your coolant. Coolants are the cooling systems in the vehicle which are used to manage the temperature of your engine. If there is any problem with the coolant or there is a leakage in the system, the coolant will not flow properly throughout the engine.

Ultimately the battery will not receive a fair amount of cooling which can cause problems, especially in warm temperatures. The coolant can freeze and prevent flow in the winter, leading to battery problems.

Problems With The Radiator Cooling Fan

A radiator cooling fan minimizes heat inside the engine and ensures that every part is kept at an optimum level. If there is any issue with the radiator cooling fan due to a mechanical motor issue, it might negatively impact the vehicle’s battery. Therefore, you need to check your cooling fan as much as possible to ensure proper airflow and prevent overheating in any part of the engine.

Old Battery

This issue is pretty common in old batteries. A car battery can typically last from 3 to 5 years in ideal conditions. However, this will depend on its usage, the brand, and battery quality. If your battery struggles to combat seasonal changes and heats up in the summer, it may be time to change your battery. Apart from this, it is also a good idea to get your battery checked, and its performance regularly tested once it gets close to the 3-year mark.

Low Motor Oil

Having enough motor oil in the car to be supplied to the essential parts is necessary. Low oil in your car will eventually heat up the engine and the battery inside. The engine will try to use battery power when there is not enough engine or motor oil.

What To Do If Your Car’s Battery Heats Up?

The best way is to stop your car and park it somewhere. After some time, open its hood and check for the issue. If you think that the problem is complex and you won’t be able to solve it on your own, call a professional battery repair company to fix the issue for you.


Dealing with a hot battery can be quite frustrating when you don’t know its reason. An overheated battery can be quite hazardous, and therefore, such a problem should be resolved as soon as possible. It not only puts your vehicle in danger but is also dangerous for you.

Therefore, it is wiser to call a professional battery expert to visit your location and check your vehicles’ battery. AAA Towing offers battery-related services and helps you get back on the road.

About AAA Towing

AAA Towing started operating as a light-duty towing and recovery service provider to the general public in Calgary, Alberta. Our professional team is experienced with the battery-related issues of vehicles and offers instant solutions to you.

Whenever or wherever your vehicle’s battery decides to have a snooze in Calgary, AAA Towing will dispatch battery boosting specialists to your pin location in no time. We will provide you with a quick and affordable battery jump-start service, taking the hassle out of this irritating inconvenience. For timely and efficient vehicle battery boosting services in Calgary, Alberta, please contact us at any time of the day or night.

Fast & Reliable Towing

We make sure each customer is completely satisfied before we leave the job.