Q: Alternator not charging

asked by on

My alternator is not charging the battery like it should.

Hello. If the alternator is not charging the battery then it may be failing. There are other problems that can occur such as bad battery connections or a failing battery cable. If the car has the wrong battery in it then that can also cause improper charging. A mechanic would usually check the battery to see if it the correct size and then check the connections at the battery. If those are fine then the alternator would need to be load tested to see if it is failing. I’d recommend having a mechanic diagnose the cause of your faulty charging system and replace the alternator if necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Alternator not charging

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: car wont start. displays starter disabled

Hi. This might be due to the theft deterrent system being activated. The key for you vehicle has a coded chip that is programmed to your ignition switch. If the switch fails to recognize it, it will think you are...

Q: My 2003 Acura TL will start right up but when I put it in gear it cuts off. It will crank back up but I get the same reaction when

Several possibilities could account for this. The torque converter could be locked up. To get an "indication" of that possibility, you could try raising engine speed to around 1,800 RPM and then, with a clear path ahead, put the gear...

Q: Oil leaking around supercharger

It could be the supercharger seals going out, but it is likely that the valve cover is what is leaking. When diagnosing an oil leak, it is important to start from the highest point and work your way down. A...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...