Understanding The Warning Signals Your Failing Car Battery Is Sending

Your car battery provides power to start your engine and keeps all electronics running. So, what do you do if your car battery starts sending warning signals?

This post will discuss the signs of a failing car battery and what you can do to prevent it from dying on you unexpectedly.

Your Battery Smells Like Sulfur

A strange sulfur smell is one of the most common signs that your battery is failing or has already failed. Batteries create electrical energy through a chemical reaction, and this process produces hydrogen gas as one byproduct. The other product is an acidic liquid called the electrolyte, which usually stays inside the battery unless something goes wrong.

If the battery leaks electrolyte, it will mix with the hydrogen gas and create that telltale sulfur smell.

If a strange smell comes from your car battery, don't ignore it! The sooner you can get the battery replaced or repaired; the less damage will be done. A leaking battery can corrode the wiring in your car, making it unsafe to drive and even cause an explosion if you get into a collision.

Battery Terminals are Corroded

Another sign that your car battery is on its way out is corrosion on the terminals. Leaking electrolytes can cause this, but it can also happen if you don't clean the terminals regularly. If you see any white or green build-up around the battery terminals, it's time for a replacement.

If your battery is leaking, use a cloth or rag to clean the terminals. You should also check your battery's cable connections and see if they're loose. If that's the case, you can tighten them with a wrench or replace them.

The Engine Cranks Slowly

If your engine cranks slowly when you try to start it, that's another sign that your battery is on its way out. Many things can cause it, including a low charge or a bad alternator.

If the battery is low, recharge it before testing the alternator. If the alternator is bad, replace it right away. Your battery won't be able to hold a charge for long when the alternator is bad.

Check Engine Light Comes On

Your vehicle's check engine light could turn on if your car battery is failing or has already failed. It might also come on if there are any problems with the belt that connects the battery to the engine.

If your check engine light comes on, it's time for a diagnostic test as soon as possible. Your battery might not be the only thing wrong with your vehicle.

Dashboard Lights are Dimmer

When you turn on your headlights, it should have little to no effect on the brightness of your dashboard lights. If turning on your headlights causes them to dim, there's a good chance that something is wrong with the alternator or car battery.

If you're experiencing any of the warning signs we've outlined, it's important to take your car in for battery testing and replacement. Failing batteries can cause all sorts of problems, from leaving you stranded to leading to more expensive repairs down the line.

At Cumberland Auto Center, serving Gainesboro, TN, our certified car technicians are here to help get you back on the road safely and quickly. So if you're experiencing any issues with your battery, don't wait – schedule an appointment with our dealership service center now.