Skip the auto shop - Our mechanics make house calls

Q: Battery keeps dying

asked by on

My car battery keeps dying, and when I get a boost off it make my lights flicker and it don't leave my car on long before it act as if it don't want to take off or stay on but it never cut completely off unless I cut it off and when I cut it off it doesn't crank unless I have a boost off
My car has an automatic transmission.

A: The first thing to do is to have the batter...

The first thing to do is to have the battery fully charged and tested to see if it can take a load of at least 150 amps for 15 seconds. If battery is not holding a charge or load then replace battery. If the battery test good or the battery is replaced then have the charging system tested to see if the alternator is putting out about 13.5 volts and over 60 amps at 2000 rpms. If the alternator test bad then check the wiring to the alternator is not damaged and replace alternator. The system should be checked by a qualified mechanic like one from YourMechanic that can come to your location and repair your vehicle for you.

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: Is it the clutch master cylinder, pressure plates, or both?

Hi, your clutch hydraulics are the most likely problem, and the slave cylinder is more likely to fail first. Since it essentially leaks on the ground, it is more difficult to recognize this component as your first failure point. The...

Q: What is the brake-shift interlock?

All cars today have an interlock system that’s designed to prevent the car from being put into gear if your foot isn’t on the brake. This does two things. First and foremost, it ensures that you can’t accidentally knock the...

Q: I just got my car today as used and have a few problems or more likely small things that could be fixed easy.

Hi. Yes these are simple problems that can be fixed. The battery light could be on for a bad battery or the alternator not charging properly. This problem can be easily determined with a battery and charging system check. Your...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...