57 how to tell if you have a faulty car battery and 5 reasons why it is not working

how to tell if you have a faulty car battery and 5 reasons why it is not working


By Vukasin Herbez on 2018-07-06 15:19:21

Car batteries very rarely die all of a sudden and unpleasantly surprise you when you try to start the car in the morning. In most cases, they give signs that their life is near its end and that it would be wise to replace it before you get stranded by the side of the road. Sometimes, those signs appear periodically and sometimes they appear just days before it finally gives up. Today, we will tell you about how to determine if your car battery is failing and why it´s not working.

1. Slow cranking

If your car battery is near its end, it will have a hard time turning the engine and starting. Cranking will be noticeably slower than usual, and in some case, it will fail to turn the engine at all. The reason is simple, the battery is empty and it has barely enough power to start the car. You can recharge it with a long drive but eventually, it will happen again, maybe even next morning, signalizing that it is time for a replacement.

2. No electrical power at all

In some extreme cases of car battery failure, the car simply wouldn´t react when you turn the key. No lights on the dashboard, no headlights, no cranking, nothing! This means that the battery is totally empty and left without even the slightest amount of power needed to power at least one light bulb. This calls for the immediate replacement of jump start.

3. Moody battery

One day you have problems starting the car, and the next day everything is normal. If this happens, this is a clear sign that the battery is near the end of the road. It means that the battery has problems recharging and this kind of behavior will only get worse as the time passes and eventually it will fail to start. We recommend you immediately change the battery when you notice this.

4. Worn out battery

In case you have jumpstarted your car many times, the chances are that your battery is pretty worn out, even though it appears to work properly. Jumpstarting is a common way of bringing dead car batteries back to life but it also puts enormous stress on the battery since it is basically a surge of power from an outside source which can alter the chemical balance of the unit. That is why it is better to replace a worn out battery before it starts to fail, just in case. There is no specific amount of jumpstarting but if you did it three times in a week, it is a clear sign that it is worn out.

5. Alternator problems

As you might know, the alternator is a device which turns kinetic energy into electricity and recharges your battery while you drive. If the alternator is broken, your battery will not get recharged and eventually it will drain itself and the engine would stop or you wouldn´t be able to start the car at all. So, if you experience any problems with electricity or troubled starting as described above, it is best to take your car to service and determine if the alternator is broken or you should just replace the battery.


The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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