4 Potential Causes Of Car Battery Failure

Car repairs are an inevitable part of vehicle ownership. Like it or not, it is a matter of when—and not if—car problems will arise, leading to car repairs.

Battery problems are one of the most common reasons why cars break down. Before assuming that your automotive battery requires a replacement, rule out these potential culprits.

1. Leaving The Auto Electricals On

All your auto electrical components should be off when not in use. If you leave the headlights, interior lights, or stereo system on all night, they will drain your battery. Failing to unplug power-consuming devices such as smartphones can also lead to a drained battery.

Consequently, your car may not have enough charge to start in the morning. 

2. Parasitic Drain

A parasitic drain on your car battery occurs when your auto electrical system continues to draw power from the auto battery, even after the vehicle is completely off. Anything from a defective headlight or glove box light to a faulty amplifier or relay can lead to a parasitic battery drain.

Digital multimeters are essential tools for diagnosing battery draw. When connected to your vehicle battery with the ignition turned off, they'll show whether there's too much draw on the batteries. 

3. Loose Battery Connections

When your car battery connections are loose, they'll hamper the proper flow of electricity to the various components of the vehicle's electrical system. As a result, you may have trouble starting your car and experience other auto electrical problems too.

Luckily, it's easy to check your car for a loose battery connection. Just locate the battery (by opening the hood of the car) and check if the battery cables attached to the battery contacts have become loose.

4. Faulty Alternator

Your car has an alternator that charges the battery as the vehicle runs. If the alternator becomes faulty, the battery won't receive any charge. As a result, your car will run out of battery charge, potentially leaving you stranded while driving.

If you have a faulty alternator, you'll need to fix it to get the battery charging system working well again.

If your car develops a problem, you should get it fixed right away. Ignoring the problem is a surefire way to invite problems that may lead to costly repairs down the road. Don't hesitate to make a visit to an auto repair professional for an accurate diagnosis and repair of your car problems.