6 Ways to Know your Car Battery is Failing

January 17, 2020 @ 5:41 pm

Imagine you need to get somewhere fast… you go to your car, ​enter the vehicle and insert the key in the ignition. You turn it on to realize nothing happens. Then, you try several times until you realize your battery is dead.

No way! It’s a horrible feeling. Sounds familiar? Do you want to know how to avoid this unpleasant experience? On this blog post, ​we’ll expose some go the signs your battery is about to collapse.



As obvious as it sounds, after having a car for more than 4 years, the battery can start failing. Make sure to have it seen by a professional after 3 to 4 years of having it, this way you can know how much time left your car battery has. On average, a battery should last five years, but this would depend on the temperature to which it is exposed, the amount of deep discharges and whether it goes through several cycles of full charge or not.


Warning light on the dashboard

Most cars have a warning light on the dashboard, usually with a battery icon. This will illuminate if the battery is not being recharged properly or if it is an internal problem. Similar to the engine check light, the battery warning light could also mean that something is wrong with the alternator or some other part of the electrical system. If the light comes on, the best thing you can do is to get your electrical system inspected by an expert to determine what the problem is.


Swollen battery

As some of you may know, a car battery is nothing more than different chemicals reacting in a box. And like any chemical reaction, sometimes things can get a little bit messy. When a battery is exposed to excessive temperature, the flat sides of the housing may swell or leak out. Freezing during the winter and swelling due to excessive heat in the summer commonly results in the electrical “death” of the battery, with no option to be recovered and leading you to replace it. Try out our ​MechaTool Universal Antifreezing coolant concentrated to protect your car during low-temperature seasons.


Slow motor start

It takes a lot of energy to start your car, all of it is produced by the battery. Once you start the engine, the alternator keeps the battery running by replacing the power used to start the engine and run the vehicle’s electronic accessories. When you put the key in the car ignition and turn it on, the battery only starts the engine. So, if the battery is on its last days, you will notice that the engine is running slower than usual. As is common, you will have only one chance at a slow start before the engine refuses to run again.


Problems with electrical components

In addition to powering the engine, the car’s battery needs to produce enough power to start all electronic components. In modern vehicles, there are many electronic accessories including power windows, seats, radio, windshield wipers, dashboard lights, headlights and more. All of them need to be supplied with battery power.

If any of these electrical components start to work strangely, first make sure it is not a loss of power due to dirt on the battery terminals. If they are clean, maybe it’s time to replace the battery. Pay attention especially when you use more than one component at a time. For example, if the radio is turned on while using the headlights. If the headlights start to lose power, the battery may not be working as it should.


Weird smell

When a battery has been frozen, overloaded or short-circuited internally, it can begin to vent gas. The smell is usually very similar to rotten eggs. If you sense this smell in the hood of your vehicle, you have to inspect your battery as soon as possible, because sulfuric acid may appear in other parts of the engine causing corrosion, and that’s something you want to avoid at all cost. In these cases you can also use our ​BATTERY CLEANER​, A specially formulated product to help remove corrosion, neutralize acid spills and assure maximum battery current flow.

It is important that you realize the warning signs. If it does not start at all, the vehicle will only make a quick sound, confirming that the available power is not enough to start it. Check the battery and change it if necessary. Don’t forget to check all our products that can help you preserve your battery’s lifetime for longer.