Top Reasons Why a Car Battery Keeps Dying


A car battery may not be the most beautiful item on a car. In fact, only a very few people ever ask about such little black box when making research for a vehicle purchase. Whether you have the best gas mileage, the most exotic hood ornament or the fanciest safety features, your car would die if your battery won’t work.

A car battery works exactly the same as any other battery. It has a positive and negative terminal and electrons are flowing through wires from one terminal to the other. The primary function of these little black boxes is to start the engine by powering the starter motor and give electric power to the spark plugs in order to ignite the fuel.

A battery is in fact, the most important aspect of the car. When it dies once, you may think there is nothing to worry about. But when the car battery keep dying over and over again, it’s a pretty safe warn that there is an underlying problem that needs to be dealt with as soon as possible. Batteries may die for a huge range of different reasons. Dealing with them is important before it’s too late.

Extreme Temperatures

Extreme is defined as far-reaching as you think. Exposing the car in an extreme cold or hot temperature may stress the internal chemistry of the battery and bring on premature failure. Car batteries eventually experience battery sulfation. It is a build-up of lead sulfate crystals which can shorten the life of the battery and lengthen the amount of time needed to charge the battery. It will also speed up the process if you leave your car in extreme conditions.

Short-term Driving

If you drive your car too often, it can contribute to a short battery life. However, the number of miles driven is not nearly as important as how they were gathered in the first place. In fact, there are many short drives lessen the life of a battery faster than those longer trips. This is probably because the most taxing use of the battery in your vehicle is the initial engine start. But keep in mind that while the ignition is requiring this extra burst of power, the recharging process takes time.

Faulty Charging System

An alternator or a generator is responsible for the life of a battery. However, if the charge is too high or too low, problems may occur. Fully charged battery only has a 12.6V DC and thus the alternator or generator needs to maintain a correct charge state of about 13.4V to 14.7V DC electrical load. If the battery is under or over charged, the culprit could be anything from mechanical flaws.

Human Negligence

You probably have done this once in your life – coming home from work, tired and left the headlights on or did not completely close the trunk. This negligence will make the battery drains overnight which will make your car in the morning, pretty dead. There are many new cars nowadays that alert you if you have left your lights on. But it is only very rare to find one that alerts you when you forgot to close the trunk.

Old Battery

If your battery is already a few years old, it might not hold a full charge anymore. Most of the time, it would come to the point that it won’t start, probably because the battery is worn out. Replacing your car battery every 5 years is a good idea because the life span of a battery usually falls in 5-7 years. If you have your car not starting consistently and you already have an old battery, try replacing the battery.

Keep the Battery Up

Keeping the battery up can only be done by having a car’s regular maintenance schedule. It is also the best way to prevent having to shell out too much cash on purchasing car batteries over and over again. However, losing a battery once a year continuously for three years only indicates that there is something off in the electrical system.

Ask the help of the auto pros to spot any invading issues that surround the battery. With the help of, you can also nip them in the bud.

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