Bad Car Battery Symptoms: How to Know When It’s Time for a Change

A dead or dying car battery can really put a damper on your day. Imagine, it does not matter whether it is a super cold icy day in winter or a really hot sunny summer day no worse time is there than turning the key and nothing happens. This means that when the battery is either weak or failing you can expect to see SOS signs in addition to facing problems when starting the car.

In the subsequent paragraphs, we will walk you through the easiest, most common misunderstandings about malfunctioning batteries, the process of finding out the cause, solutions such as the need for a new battery, and the rule to safely do it yourself. In addition, the article covers a few methods on ways to improve battery life so that you do not need to be concerned about unscheduled stoppages.

How Can I Tell If My Car Battery Needs Replacing?

It is somewhat tricky to determine the exact point in time when the battery might be approaching the end of its life. There are some pointers to narrow it down: Most car batteries have been designed to serve for 3 to 5 years, but they can still be in use up to that time, after which their lifespan can be reduced by extreme temperature, driving patterns, and maintenance. Below, you will find the most common symptoms that you have to pay attention to.

Slow Engine Crank

If you twist the key in the ignition and there is a delay before your car starts, then also the engine may not be sounding exactly normal; in that case, it may be your battery that has some capability issues for which the power is not being supplied properly. A normal battery would carry out a start within a second, which is assumed for cold weather, without any issues whatsoever.

Dim Headlights or Interior Lights

If your lights are not operating well a weak battery is the cause. In situations when either the steering wheel or dashboard lights are visibly fluctuating in brightness during driving, it can be concluded that your battery is no longer able to store a full charge.

Clicking Sound When Starting

Moreover, should you hear a fast clicking sound at the light-turning moment that shows a low battery voltage? For the most part, this noise indicates that the car simply does not receive enough electrical power to get the engine into motion.

Battery Warning Light

Furthermore, a battery light or check engine light is onboard most vehicles and may pop up as a result of some issues with the battery or alternator. Now this warning is not necessarily synonymous with the end of the battery but it serves as a signal to take immediate diagnostics.

Swollen Battery Case

Very high temperature or keeping the battery connected to the charger for too long makes the battery case expand. It is an indication that your battery is not only damaged but also dangerous to use.

Rotten Egg Smell

The situation of the battery which leaks is likely to cause hydrogen sulfide gas that smells like rotten eggs. This situation does not only give a warning of a damaged battery but it will further be dangerous to your vehicle and health.

Corrosion Around Terminals

Cast a glance at your battery terminals. Your presence of a white or bluish powdery substance is a sign of corrosion. It can bring about power supply problems for a batter.

Needing Frequent Jump Starts

If you come across the situation where you have to jump battery of your car more than once in a week, then it is clear that your battery has become unreliable. Therefore, it's time to replace it even if there are still some volts left in it.

How to Test If a Battery Is Good

The act of testing your battery can be a sure way of knowing if it is still workable or if it already requires a change of the same. You can do it at home or bring it to a nearby shop.

Use a Multimeter

This is a gadget you can easily purchase from any auto or hardware store.

• Turn the mustimeter to DC voltage.

• Place the red probe to the positive terminal and the black probe to the negative terminal.

• A typical voltage of a healthy battery will show 12.6V-12.8V during the car when it is turned off.

• If you still measure less than 12.4V, it should be labeled as weak.

• Likewise, in case the value reached 12V; the battery is probably no longer working or almost at the end of its life. 

Another way to test the battery is while the vehicle is running. When 13.7V to 14.7V voltage is detected, then the alternator is performing as it should, i.e., it is sending current to the battery.

Load Testing

Most of the car parts outlets have the load test for free. The test is a good recreation of the battery getting depleted due to the high strain of an engine startup and thus helps in identifying if the battery has the capability to still maintain voltage when loaded. It is an authentic way of ascertaining the status of the battery rather than merely relying on a mustimeter.

Using a Battery Monitor

These are plug-and-play battery monitoring devices that have the capacity to connect to your smartphone. What they do is they monitor the voltage levels so that you are informed when power is running out, and provides a clear picture of the battery's condition from the past up to now. When the car is driven only a few miles at a time or left for a long time, the use of such devices is more important because barriers in maintaining the battery are almost removed.

Do I Need a New Battery or Just a Jump?

It’s possible that you have a dead battery if you try to start your engine and it doesn’t work. However, it is also possible that the battery is not necessarily dead, but just a power shortage. It is not uncommon that a fully discharged battery will.

You Might Just Need a Jump If:

• Your car battery is not older than 2-3 years.

• This is the first time of this issue.

• If you can jump the car and it will be running well.

• You are on your first time with such a problem.

Even in those instances, the battery is possibly in a good condition. But if this incident happens again and the auto does not start, then we have to look for the problem elsewhere.

You Likely Need a New Battery If:

• You have had to restart the car on a few occasions in the last few weeks.

• It’s a clear sign that the accumulator can’t store energy during the night.

• This is to be noted not only due to the exposed to the open air but also due to the rusty hits on it.

• If this is your battery reading, then you have actually failed the battery test?

•  The power windows are not working normally yet you are driving.

No, jumping a car over and over isn't a way to resolve the situation. This kind of action can not only ruin your vehicle's alternator, electrical system, but can also damage the battery. For example, if your battery is beyond the usual terms of its life and becomes a headache by yielding malfunctions, it's better to discard it and opt for a new one.

How to Replace My Car Battery?

Replacing your car battery at home is definitely possible. The only thing that you need to keep in mind is following a few safety guidelines.

What You’ll Need:

• A new car battery (check your owner's manual for the correct size)

• Wrenches or a socket set

• Safety gloves and goggles

• Battery cleaner or baking soda and water

• Terminal brush or wire brush

• Anti-corrosion pads or grease (optional)

Step-by-Step Instructions:

1. Turn Everything Off

Make certain that the vehicle is off, keys are not in place, and lights are switched off. The hand brake should be engaged.

2. Find and Inspect the Battery

Open the car's hood and find the battery. Inspect the battery as it might be dirty or bloated. If the battery case has visible cracks or is leaking, don't think of taking it off by yourself. In situations like this, seek help from a professional immediately.

3. Disconnect the Negative Terminal First

To avoid any short circuits, always disconnect the negative (black) terminal first. Start by turning the bolt anticlockwise and then remove the cable from the terminal.

4. Disconnect the Positive Terminal

Follow with the positive (red) terminal using the same process.

5. Remove the Battery

Detach the battery from the bracket or any kind of a clamp holding it. Lift the battery carefully out and have in mind that it is heavy and that it can leak if it's damaged.

6. Clean the Battery Tray and Terminals

Use a battery terminal cleaner or make a mixture of baking soda and water to remove the corrosion which has developed there. Clean everything thoroughly by rinsing and then drying it off.

7. Place the New Battery

Set the new battery down in the tray. Make sure that the positive and the negative terminals are in the right places.

8. Reconnect the Terminals

First, connect the positive terminal and then do the negative one. After that, tighten the clamps securely.

9. Secure the Battery

To avoid the battery's movement during the trip, reinstall any hold-down brackets.

10. Test the New Battery

Start the car and see if any lights come on normally. If everything is alright, you're ready to drive!

Extra Tips for Battery Maintenance

To manage your battery well can elongate the span of it and prevent the need for replacement.

• Drive your car regularly. Short trips will not let the alternator be strong enough to recharge the battery virtually.

• Turn off lights and electronics when the engine is off. It is not wise to depend on self-shutting-off features.

• Clean the terminals every few months. Minimal care may lead to big gains.

• Use a trickle charger. Driving once in a while will keep the battery charged without having to worry about them overcharged.

• Avoid extreme temperatures. If you have the option, you should try to park in a garage or park in a shaded spot during the hot months of the year, and also think about a battery blanket for winter.

Conclusion

Most people get stranded by car battery problems. However, they are the most visible and easily solvable ones if you are alert enough to notice them early. If you observe symptoms such as a slow start, faint lights, or frequent jumps, it’s time to think about a new battery. Apart from saving a significant amount of time, money, and energy, knowing how to test and change your battery yourself ensures you don’t have to rely on the garage to do such a small job. You don’t need to be a car wizard to do it, but you’ll need some basic mechanical knowledge, a set of tools, and a little caution. If you can’t make up your mind about your battery, just drive to a car parts store or call your mechanic to do a quick test. It’s a service available from most places at no cost and takes just a matter of minutes. By being vigilant of your car battery’s status and carrying out necessary maintenance, you can dodge the trouble and danger of any car issue happening unexpectedly. Stay enabled, stay safe!