Battery Light On In Car. The car s battery light coming on generally means that there is something preventing your car s electric system from charging off the battery. But of course it s not that simple. The reason why your car can operate normally even though the battery light is on is because your car can run off the.
If the battery light comes on and stays on while you are driving the most common cause is a broken alternator belt. This is a system test that indicates the battery light on the dash along with any monitored components of the charging system are working as expected.
Provide a failsafe if something draws too much current.
This can be a result of a malfunctioning alternator a battery going bad or a number of other things. The battery light or charging warning light available on the dashboard of your car indicates malfunctioning or poor charging of the battery this light illuminates whenever the charging system does not charge the battery with a voltage above approximately 13 5 volts. But of course it s not that simple. Every time the vehicle starts up the battery warning light should briefly turn on then back off after a few seconds.
