Q: battery not charging light came on

asked by on

Started engine yesterday battery not charging light came on, gauge show it was out putting 6 to 9 volts. Check Battery terminals to make sure they were clean and getting good contact. Made sure belts were not off, etc. Came out next morning ready to remove the battery and alternator for testing. Started the truck and battery not charging light came on an then went off as out put climbed to normal 14 volts.

What is getting ready to go bad?

My car has 109000 miles.
My car has an automatic transmission.

I would still recommend getting the alternator and battery tested. The most likely cause would be the alternator. The alternator can have an intermittent failure that causes it to charge and not charge randomly. If this turns out to be the case after testing, I would recommend having the alternator replaced. I would also be a good idea to have the battery fully charged while the alternator is being replaced to ensure that the vehicle starts easily. If you need help testing the vehicle, a certified professional from YourMechanic can come to your car’s location to diagnose the battery light and proceed with the correct repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. battery not charging light came on

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: Replacement alternator 136 amp vs 160 amp.

Hi there. The alternators should working just fine. I recommend that putting the brand of alternator that is on the truck in the 160 amp size. There are different models of alternators for the Dodge Ram 1500 trucks. Some have...

Q: Battery light on, temperature gauge maxed out, A/C system not working correctly

Hi, thanks for writing in. What you are describing happened to me personally a few weeks ago. It sounds like one (or both) of the accessory drive belt(s) that turn your alternator, water pump, and power steering pump is...

Q: It's runs really bad upon start up, but if allowed to idle for 30-45 min it will run perfectly.

Hi there. What seems to be happening is your engine is being leaned out when running cold until the engine reaches operating temperature. Check the coolant temperature sensor or the engine temperature sensor. These sensors could have a fault in...

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...
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...