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: Rear differential seems to be leaking. 2001 BMW M3

Hello - there are several possible sources of a differential fluid leak: the pinion seal, the axle flange seals, or the rear differential cover gasket. I recommend an oil leak inspection performed by a mobile, professional mechanic, such as one...

Q: Replace front struts

Hello. Your all wheel drive system should have active suspension on it. This means that the struts are electronic. You typically cannot find these online as they are a dealer item. Unfortunately, you cannot use the 2WD struts as that...

Q: Car won't crank

Hello. There are many reasons why a car wont turn over. A bad starter, a bad connection at the battery or starter, low battery voltage, bad starter relay are just a few. Because of the limited amount of information and...

Related articles

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...