Skip the auto shop - Our mechanics make house calls

Q: Battery dies when the car sits for two days

asked by on

I have a problem with the car battery. It would die out completely each time the car sat for about two days without driving. I went to several shops but they don't know why this happens. Do you have any idea?

A few different things can cause the battery to die when the car sits. The most likely cause is a parasitic draw. The draw can be from many different issues, from the radio to a power window. This draw causes the battery to slowly drain the battery while the car is sitting, and can eventually cause the car to not start. A qualified technician, such as one from YourMechanic, will be able to diagnose your battery problem and perform any repairs required.

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

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: Do I have to reset the ECU after re-plugging the sensor cables?

Hello, thanks for writing in. I'd be happy to help. In most cases you should not have to reset the computer if you disconnect the harness. Some vehicles require a throttle position relearn, but usually only if the battery is...

Q: Car overheating during idling or stop and go traffic

Hello. If the engine will stay cool with the AC on or when the vehicle is moving then there is a cooling fan circuit issue. The computer may not be turning on the fan when the engine is getting hot....

Q: Engine problems, sluggish acceleration, dash lights on

It would help to know what the codes were that the dealer turned off and are most likely back. If they were misfire, antilock brake, or engine problem codes they will all help in the diagnosis of the problem you...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...