Battery light on intermittently

[slemmer]

On my '05 CCSB I've noticed more often during cold weather (32*F and lower) that my battery light is on. The voltage gage is at 14.0v and all lights and accessories appear to run ok. After I drive for a few minutes and notice the battery light is still on at a stop light, I'd turn off the engine and restart it and the battery light disappears.

 

Could there be a problem with the battery? I checked my 3-yr old "maintenance free" Energizer battery and the cells look topped up and ok. No sulphations on the battery terminals and they are tight. I figure the reason for the battery light going on in the first place was due to a bad cell and after running the car's charging system the battery "wakes up" and subsequently provides voltage.

 

Another theory could be the alternator starting to go but if a rectifier is going should it be either working or not working and none of this intermittent issue?

 

Thanks

 

Stephen

[waumo1]

It could well be the alternator. Not sure on that year but the battery light probably indicates a charging problem.