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.

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

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: Need cv boot replacement

The best way to resolve a torn cv boot on your vehicle is to replace the entire cv axle. This is because the replacement cv boots that are available are not very durable and will likely require replacement again. Also,...

Q: How do you turn on the Auto Headlight function?

If your car is equipped with auto headlights, this is more than a convenience feature. They will automatically turn on and off based on the level of ambient light outside. That ensures better safety at all times while driving (we’ve...

Q: Vehicle dying despite parts replacement

If by "dying" you mean you no longer have electrical power, you could have an excessive draw when the car is off that is draining the battery. The problem could also be with the wiring from the battery to the...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.