2012 Ford F150 Battery Light Comes On

The light was still comes on then they told me my alternator was bad because it was only charging at 13 5v they were not able to find an alternator for it.

2012 ford f150 battery light comes on. Asked by bob nov 03 2016 at 12 02 am about the 2008 ford f 150 xl supercrew sb. The dealer agreed to replace the battery and the cable end which they did. I had the battery light come on my f 150 i have put a brand new battery in and all is fine. My 2011 f150 5 0 has a battery light that turns on after about 30 seconds of running went to autozone and they check the charging system.

My mechanic says that the alternator must be charging but why is the light on. Maintenance repair the battery warning light comes on after about 30 seconds after i start my truck. Every thing was fine until today when the battery light came on. Part 1 of 3.

Assuming that the voltmeter is correct and reads 13 5v to 14 5v what. Turn off everything that draws power. React to the battery light. 2009 2014 f150 2013 battery light on i bought a 2013 f150 last saturday.

It had battery corrosion on the positive side of the battery and on the battery cable end. If the battery light comes on while the engine is running and the vehicle is being driven this indicates a problem with the charging system. The battery light is on but the voltmeter says 13 5 to 14 5 volts depending on the engine revs. However the battery indicator light has come on just for a quick moment today and cleared when i accelerated.

They told me my battery was bad so i replaced it.