7 Reasons Why New Car Battery Dead With Solutions

Is your new car battery dead? If so, you must take proper maintenance before your brand new car battery dies completely.

When you already know why your new car battery keeps dying, you are able to keep your new car battery healthy.

A brand new car battery can die after a week or after a month, depending on various reasons.

Whether it’s summer or cold winter, a new car battery can die after only 3 three days; therefore, taking time to know some absolute reasons why a new car battery is dead is going to save you from replacing the car battery.

What Causes A New Car Battery To Die?

new car battery dead
Why New Car Battery Is Dead

Your new car battery is dead because of extreme temperature, loose battery connections, battery charging difficulty and parasitic drain on your car battery.

Some common reasons why a new car battery dies:

  1. Battery Is Not Charging At All
  2. Extremely Hot Or Cold Temperatures
  3. Loose or Corroded Battery Connections
  4. Left Interior Light Or Headlights On In The Car
  5. Wrong Size Battery In Your Car
  6. Parasitic Drain On Your Car Battery
  7. Driving Short Distances

1. Battery Is Not Charging At All

battery is not charging at all
Battery Is Not Charging At All

A car needs electrical energy from the battery to start the engine. But, when the battery does not have a charge, it typically cannot provide the power to start the vehicle.

When your new car battery doesn’t charge consistently, eventually, your car battery keeps dying until it becomes dead completely.

The alternator is responsible for charging a car battery because when the car is running, the alternator charges the car battery.

Look for an old or loose serpentine belt (aka alternator belt) in your car and replace it to let the alternator charge the battery properly.

So, if your car battery is not charging while you are driving, this is a reason why your new car battery is dead.

See Also: Dead Car Battery Signs

2. Extremely Hot Or Cold Temperatures

Extreme temperatures are always bad for a car battery, whether it is cold or warm.

An automobile battery cannot handle excessive temperature because too much heat can make the battery charging system fail.

Extremely hot or cold temperatures also drain a new car battery and make your brand new car battery dead quickly.

Too hot or cold temperatures not only drain a new car battery, but excessive temperatures also make a car battery stops working, battery acid leak, bubbles, corrosion and so on.

So, to take care of your new car battery, you must avoid extremely hot or cold temperatures in every situation.

In summer, park your car in the shade also in cold weather, and garage your car to protect your new car battery keeps dying.

3. Loose or Corroded Battery Connections

loose or corroded battery connections
Loose or Corroded Battery Connections

The connection between the car battery and the car electrical system should always be strong and tight enough not to be loose.

But, your brand new car battery dies when the battery cables are not engaging properly.

Even a new car battery terminal connection can become loose for some reason that causes the battery to not charge completely.

Take time to check your car battery connections regularly and tight battery cables whenever possible.

You might experience corrosion even on your new car battery, but the battery connection should always be corroded-free.

4. Left Interior Light Or Headlights On In The Car

left headlights on in the car
Left Interior Light Or Headlights On In The Car

Left interior lights or headlights in a car are the most common cause for a new car battery to die.

Car any type of lights on by the charge of the battery so when you turn on headlights in your car, it consumes some amount of charge from the battery.

But, when you leave headlights or other lights on in your car, it drains the battery, which makes your brand new car battery dead.

To protect your new car battery keeps dying, check all the interior lights and headlights in your car and ensure all of the lights are off before leaving your car.

5. Wrong Size Battery In Your Car

It is very necessary to know what size of battery your car needs before buying a battery.

If you put the wrong size brand new car battery, it easily makes your car’s alternator overcharge.

Whereas the alternator and battery work together, when the alternator is overcharging, it also damages the battery and eventually drains your car’s new battery to die completely.

Check the user manual before getting a new car battery. On the car’s owner’s manual and in the battery section, you will find what size battery your car needs.

You also take assistance from a vehicle professional when you need a brand new car battery.

6. Parasitic Drain On Your Car Battery

Parasitic drain on a car battery means when a vehicle’s electrical system continues to drain energy from the battery, even if the vehicle is shut off.

A brand new car battery dies because of a parasitic drain, which is now common at auto repair shops.

The vehicle battery must be recharged to provide energy for the car’s electrical system.

But when your new car battery keeps draining, it cannot be recharged properly, so the battery goes dead in the long run.

Check your car for a bad alternator, a faulty relay, headlight switch and other electrical components and fix them to avoid parasitic drain on your car battery.

7. Driving Short Distances

driving short distances
Driving Short Distances

While driving your car, the battery recharges, and to get recharged, the car needs to run for at least a few minutes.

But, if you drive your car short distances, the battery does not get sufficient charge to operate the car’s electrical system.

Short-distance driving often leaves a new car battery dead, even after a week or two weeks.

Driving short distances not only makes you not only bad for the car battery but also can stop the engine oil from reaching its optimal temperature.

Drive your car battery for at least 15 to 25 minutes to recharge the battery, which protects your new car battery from keeps dying.

How To Keep A New Car Battery From Dying

how to keep a new car battery from dying
How To Keep A New Car Battery From Dying

Car owners do not want their new car battery dead after a week. That’s why you should know how to keep your new car battery from dying as a vehicle owner.

Here are some tips to keep a brand new car battery from dying:

  • Regular battery inspection:
    The most important step you need to take to keep a new car battery from dying is battery inspection on regular bases. Regularly check your new car battery for loose connections, corrosion, and damage.
  • Keep your battery clean:
    Even a brand new car battery is also going to be dirty after a long drive. But, to keep a new car battery healthy, regular cleaning is important.
  • Avoid storing a new car battery:
    A new car battery should be used on the vehicle. If you need to store a new car battery, make sure to store your battery in a dry and normal temperature place.
  • Shut off all lights:
    When your new car battery keeps dying, check the lights of your vehicle to keep your new car battery from dying. Shut off the car’s interior and headlights before you come out of the car.

Conclusion – New Car Battery Dead

Your new car battery is dead for some reasons that you can avoid and keep your new car battery from dying.

Noticing a brand new car battery keeps dying can be a little bit confusing for vehicle owners. But, learning what causes a new car battery to die is essential. 

Parasitic drains in the car’s electrical system make a new car battery dead more quickly.

You should also avoid too hot or cold temperatures to make your new car battery last longer.

So, always be aware of the dead car battery in your car and get help from a professional when your new car battery is dying.

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