Battery Light's Contradiction Car Runs, Light Persists

Don't unplug the battery while the car is running. Almost positive you'll need a new alternator. Keep driving it and you'll know for sure: The ... ... but now the battery light is on. I tested the battery with a meter. It's fully charged when off and reads over 14 V when the car is running. I measured voltage with the car running and it was around 13.8, but that was when the output was OK. After a week of seeing this light off ... When investigating a flat battery or other potential issue you should always check the voltage with the engine running to make sure the ... Even if the car seems to run fine, this light indicates that something needs attention. Ignoring it can lead to bigger problems, such as a dead ... ... fine. But in reality, there's a few reasons why you can have a good ... Flashing Battery Light on a Car: 5 Common Causes & Fix. Honest ... The car runs fine. It all started when I replaced my consumer ... But I don't drive the car. Whenever I leave the car for few days it's ... A depleted battery that won't hold a full charge ends up overworking the alternator, and the starter ends up pulling more current than it ... Mercedes Benz Battery Charge Warning Light – This light indicates that the battery is not charging. This could be due to a problem with your car's electrical ... It's more than likely that your alternator is bad. As has been said, that idiot light is an under-voltage indicator. The car will run fine for a ...