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.. Indicator light on. usually, the first sign that your charging system is in trouble is a "battery," "alt," or "charge" warning light illuminating on your instrument panel while driving.. If the battery light comes on your dash which you are driving, that means there is a problem with the car's charging system. about 90% of the time, the alternator is under or over charging the battery..
The charging system warning light should show for a few seconds when you start the car, but if the battery light shows while you're driving the vehicle, that light signals a problem.. Is your battery light on? when it shows up, it could signal a few different problems. one of our customers had a battery light turn on and it turned out that his alternator needed to be replaced.. How to respond when your car's battery light goes on your car's battery light is an indicator of when your car's charging system is malfunctioning. this can be a result of a malfunctioning alternator, a battery going bad, or a number of other things..
