Skip the auto shop - Our mechanics make house calls

Q: Several batteries died out

asked by on

The car has an automatic transmission and has gone around 40,000 miles. It has been draining batteries for no apparent reason. I went to the dealership so that they would solve this problem but they didn't find out what causes this. I have already replaced several batteries. They just die out without any warning, so when I go to start the car and put the key in the ignition, I cannot get it out as the battery died. I'm very concerned to drive the car on any longer distance as I might get stranded somewhere. Do you have any idea what could cause this?

A: The most likely causes are either a parasit...

The most likely causes are either a parasitic drain on the battery or a faulty alternator. The battery is basically just a storage device which must be constantly charged by the alternator. A battery that is partially discharged often will meet and early demise. If the alternator is OK, the next thing to do is check for a parasitic draw. Something inside the vehicle that is getting left or somehow drawing too much current, will eventually wear down the battery. A professional can check for this by placing an ohmmeter in series with the negative battery cable and checking the reading. I suggest you have your vehicle inspected firsthand to determine the true cause of the draining battery and extent of the problem. The team at YourMechanic is an excellent option since we make house calls.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: How do I use the windshield wiper mist feature in a 2012 Chevrolet Equinox?

The windshield wiper mist feature is perfect for when there’s a one-time occurrence of moisture on your windshield. To use the mist feature, locate the windshield wiper lever that protrudes from the right side of your steering column. Pull the...

Q: No spark condition due to icm wire

Hello. If this occurred right after rebuilding the engine then it may be a defective control module or a pinched wire. It can also be the PCM. I always test the wiring first. If there is not continuity in the...

Q: The car hesitates and jerks during quick acceleration

It sounds like you may be experiencing an issue with your fuel system. The fuel pressure regulator is one of the parts responsible for maintaining your fuel pressure at all rates of engine speed. Most fuel pressure regulators are controlled...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...