Q: Battery died

asked by on

My battery died. What would be some reasons why?

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Battery died

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

Get a quote

What others are asking

Q: squeaky bumping noise for driver side rear intermittingly. louder when the car slows down.

Hi there. It sounds like a suspension component is squeaking; a strut, shock, or bushing. Look for obviously worn components that may be the cause of the noise. If the worn component(s) is not obvious then there may be need...

Q: Door unlocked alarm, no power window or door lock on driver door only, interior light comes on with L turn signa

Hi there. In general, wiring harnesses are sold by the manufacturer as a whole harness; not individual wires. It is much easier, cost-efficient and safer to replace the entire harness if it's determined that it is faulty and the source...

Q: Just put new alternater on but battery not charging

The alternator in your car charges your battery with the assistance from the voltage regulator which is something that regulates the amount of voltage being sent to the battery via the charging from the alternator. It's function is to not...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...