Q: Check Battery light still on

asked by on

I have a new battery and alternator, but the Check Battery light is still on. And the battery dies after a day or so.

Hi. The system is not charging because of the symptoms mentioned. A new alternator does not always mean it is a good one. The wiring will need to be checked. There is a 150 amp fuse you can check. There is also a second battery in the left rear of the car. It is not responsible for starting the engine, but it is there to support all the devices in the car and it will need testing as well. A battery with a bad cell can draw a lot of current from the alternator. If you need further assistance, I recommend you have a certified technician, like one from YourMechanic, inspect the battery issue and replace any component that is draining your battery.

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

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!
  1. Home
  2. Questions
  3. Check Battery light still 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: my rpms remain around 2500 rather than dropping down to the normal 500-1000 idle speed

An intake manifold vacuum leak is likely the issue with your VW. Have a close look at all vacuum hoses that connect to the intake manifold. The large hose that connects to the brake booster is a suspect. Listen closely...

Q: So I bought my wife a 2016 malabu and out of no where the battery saver light came could it be the same as the cruz

Hello, thanks for writing in. Both the battery and the alternator may be at fault. The light turns on any time low voltage is detected. That being said, both are easy enough to test. Most automotive parts stores will test...

Q: Q: ignition?

Hi there. What you are describing is common with an ignition lock cylinder problem. This is the component in which your key is inserted on the steering column. Inside this component are multiple electrical connections that must all work together...

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 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...
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...