Skip the auto shop - Our mechanics make house calls

Q: Battery runs down after car is idle

asked by on

Battery runs down after car is idle.

A: Hi there! Your problem sounds like an issue...

Hi there! Your problem sounds like an issue with your charging system; more specifically, the alternator.

The alternator is a major component in the charging system whose job is to maintain the battery charge during vehicle operation. Something as simple as a blown fuse could impede the alternator's function, or the issue could be more complex.

I would suggest having an experienced mechanic, like the ones at YourMechanic, inspect the entire charging system to pinpoint the issue and suggest appropriate repairs.

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・Save up to 30%

Get a quote

What others are asking

Q: Car overheats after 25 minutes

Hello! A stuck closed thermostat will cause a vehicle to overheat in about that time. A coolant leak, bad fan operation, or a leaking head gasket will produce similar overheating conditions. I suggest having the coolant system inspected by a...

Q: Advice on replacing the positive battery cable on a '95 Ford Mustang GT

Yes, definitely replace the cable. It was a design flaw on those, and as they get old, they short out internally. It happens all the time. And don't just get those cheap splice kits and put it in and done....

Q: Leak in power steering

The power steering pump or hoses could be the cause but the system would need a complete diagnostic inspection to verify the leak before a recommendation for repairs is given. I recommend having a mechanic like one from YourMechanic check...

Related articles

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...