Q: Battery died

asked by on February 19, 2016

My battery died. What would be some reasons why?

Battery is dead Inspection $79.99 - $89.99 Get a Quote

Hello! A battery may die for a number of reasons. In old age, a battery will lose its ability to recharge, which, by definition, makes the battery bad. An alternator is part of the car’s electrical system, and is built to recharge the battery. If the alternator fails, a battery won’t have any way of recharging. The battery may have also died because something was left on, or there is what is known as a parasitic draw, draining the battery. A parasitic draw is something that continues to drain the battery even after it is switched off.

I suggest having the battery, as well as the alternator, tested to help determine exactly why your battery died. You may benefit from a mobile automotive service, such as YourMechanic, whose technicians will come to the vehicle’s location.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

I am looking to Turbocharge my 2008 Chevy Cobalt with manual transmission.

Hello. It is indeed possible to turbocharge this vehicle. Adding a turbocharger will definitely increase your horsepower. The main thing you need to keep in mind is that this will put added stress on the engine. Due to the mileage...

Climate control module. Heater core

Faults in electronic or mechanical control components in the HVAC system have no effect on the heater core in the passenger cabin. The heater core itself is not a component that would looked at as a cause of engine overheating....

Battery is dying, even after a jump start.

As you know the alternator is responsible for charging the battery and when not working properly will cause the battery to die prematurely. This may also be potentially related to the voltage regulator not working properly. This is a unit...

Car has oil leak around middle of engine

Hi there. An oil leak can be a very frustrating ordeal to go through. There are Many types of oils in your vehicle including, engine oil, power steering fluid, transmission fluid, and also coolant. To ensure proper diagnosis, I would...

Oil sensor not working properly.

If the oil was checked first using the vehicle's computer and it read low you were correct to top it off. However, sometimes these vehicles can take a few minutes or a few miles of driving to reset the gauge...

Battery keeps dying out after the car sits for two days

Hey there. You may have excess current being drawn somewhere in a circuit while the car is not running. A mechanic would use an ammeter to probe various circuits to isolate the problem. As a temporary measure you could install...

Does my transmission fluid need to be changed?

The color of used transmission fluid is not particularly relevant in judging the remaining life of the fluid. If the fluid is visibly contaminated with particulate matter and/or the fluid has a burnt odor, as a consequence of overheating, those...

My car won't start. It tries to turn over but won't.

Hi, thanks for writing in. Your battery may need to be replaced. If you don't have the right about of Cold Cranking Amps your vehicle will fail to start. There is no way to check this though. Also, your alternator...

P0171

Hi there. This code you are getting is due to your system running lean. Most of the time, it is caused by low fuel pressure from a weak fuel pump or a clogged fuel filter. Another possible cause can be...

Related articles

Symptoms of a Bad or Failing Auxiliary Battery
If you have multiple batteries in your vehicle, you may have to replace one if the vehicle won't crank, fluid is leaking, or the Battery Light is on.
How a Battery Works With a Car's Electrical System
Have Have you ever wondered how your car’s electrical system works? It all starts with your car battery. Your car's electrical system operates on a closed circuit, with the main power system being the automotive battery. It uses less than...
Can a Car Battery Overheat in Hot Weather?
Hot weather can cause battery fluid to evaporate and make it hard to start your car. Battery overcharging decreases the lifespan of your battery.