Signs of a bad battery

10 Signs Of A Bad Car Battery

If you are a car owner, there’s a chance that your battery has gone bad. It isn’t an issue to take care of yourself and replace the battery when it’s time; however, if this happens, please note that some signs indicate that your alternator is bad.

Clicking noise when you turn the key.

If you hear a loud clicking sound when you turn the key, it’s likely that your battery is not fully charged. This can happen when there is an issue with the alternator or other electrical components of your car. If this happens, you should take your car in for service immediately and make sure that everything is working properly before starting it up again.

Slow crank.

If your car battery is old, it may be time to replace it. Old batteries can lead to slow cranking and other issues that make driving difficult.

If you’ve been driving for a while without charging your battery, it could also be low on water or power. This can cause problems with starting your vehicle.

Another sign of a bad battery is if you notice that every time you turn on the ignition switch (or start-up), there’s an immediate delay before any starting sounds come out of your speakers or radio speakers when turning over or pressing gas pedal buttons on cars equipped with keyless entry systems such as Ford Fusions equipped with remote start systems where only certain models include keyless entry capability; however most new cars today do not require keys because they can be programmed through computers instead!

You have to hold the key for a few seconds for it to start.

A few seconds is all you need to hold the key for your car battery to start. If you’re having trouble starting your car after it’s been sitting unused for a while, this may be an indication that your battery is weak.

If this happens often and when there’s no power source nearby, then it means the alternator isn’t charging properly—or possibly at all! An alternator can also fail if its connections are loose or corroded by acid from metal shavings left behind by old batteries in their casings over time (which can happen with certain brands). In both cases, replacing these parts will resolve these issues quickly and easily so long as they aren’t too expensive; otherwise, they could cost thousands of dollars each time one breaks down again during future driving sessions until they finally give up entirely due to age!

Dim lights and electrical issues.

If you have a dim light or electrical issue, it could be caused by a bad battery. A bad car battery can cause other problems with the car’s electrical system and even make your vehicle harder to start.

The check engine light comes on.

The check engine light can be caused by a bad battery, but it can also be caused by other things. For example, if you have an oxygen sensor problem in your car and the check engine light comes on, it’s important to get this checked out as soon as possible.

If you’re having trouble getting into your car after it has been parked for a while and the check engine light is still on—or if you’re planning on driving anywhere soon—it’s best to call up AAA or another reputable mechanic immediately so that they can come out and diagnose what might be wrong with your vehicle.

Swelling, bloating battery case.

  • Swelling, bloating battery case. Your battery case will be swollen and bloated. It could also be leaking. If you notice any of these signs, it’s time for a new battery!
  • The battery cannot hold a charge for more than half an hour after being fully charged (if at all). This means that either there is too much power being drawn from your car’s electrical system or there isn’t enough juice left in your car’s battery to start up again.  Once it’s been drained by running into something unexpected while driving around town on hot summer days like today when people are sweating like crazy.

Battery leak.

If you find a battery leak, here’s what to do:

  • Turn off your car and wait 30 seconds before checking the area again. This will help prevent damage from inside the car.
  • Using something like a pen or pencil (not a knife!), poke around in the area where you think there might be a battery leak. If it feels wet or slimy, then that means there’s definitely something wrong with it!

Old age.

Batteries lose capacity as they age, as well as their ability to hold a charge and provide power. The lifespan of your battery will be determined by the number of cycles it has been through, so if you’ve owned your car for more than three years and the battery hasn’t been replaced yet (or if it’s been replaced recently), then it might be time for a new one. But even if your old battery was working fine until recently, there’s still a chance that you could be dealing with an aging power source—this happens most often in cars that sit idle for long periods of time or are stored indoors for long stretches of time during winter months when temperatures drop below freezing levels outside.

A Brief History: How Long Does Your Car Battery Last?

The average life expectancy for a lead-acid automotive starting system is about four years before needing replacement due to normal wear-and-tear on internal components such as plates/cells/etc., but this varies widely depending upon how much use they receive over time; some people report having gotten over 10 years out of their original starter systems while others said theirs were shot after just six months!

Short drives don't fully charge the battery.

When your car doesn’t start, it’s usually because the battery is not fully charged. If you’ve been driving all day and don’t drive very far at night, this could be the case. Your alternator may not be working properly or there could be another issue with your vehicle that makes it difficult to get enough juice into the battery. If you’re experiencing this problem and think it might be related to a bad battery, then contact a professional mechanic who can diagnose and repair any issues before they become bigger problems down the road!

Your alternator is bad.

If your car is failing to start, you may find that the alternator is the culprit. An alternator is a part of your car’s electrical system that charges your battery when you’re driving. It’s usually located on top of your engine and can be tested with a multimeter or voltmeter. If it doesn’t work properly, then you’ll need to replace it if possible; otherwise, it’s best practice to just make sure there aren’t any other problems before getting this fixed


If you are experiencing any of the above problems, it is time to get an estimate for a new battery. The battery is the most important part of your car and something that can cause you major headaches if not replaced correctly.