Battery Light Illuminated, Engine Purring A Tale of Two Signs

8 Culprits Your Battery Light On but Alternator is Charging | How to Fix Battery Light On Dashboard ... Flashing Battery Light on a Car: 5 Common ... A battery warning light that stays on while driving indicates that the battery is no longer being charged by the alternator and is running on its own charge. When the car is running the alternator puts out somewhere around 13.8 volts. If your alternator goes bad then your car will run off the battery ... The car battery light might come on for many reasons, but generally, the reasons are: ... Your car does its best with a charged car battery. Any 1 of the problems ... It seems like the only possible sources of this problem are: loose belt (I don't think so), bad ground (seems ok, but maybe not), bad alternator ... The light is an indication of a problem with the battery or charging system, hopefully a minor one. These can include loose or corroded battery cables. It is not common but corrosion can set in inside the battery cable sheath at the battery terminals and cause all sorts of issues with an ... If your alternator reads 14.6v while running then there's nothing wrong with your alternator. Your problem is some where else. Putting a new ... I hooked up a voltage meter to the battery with the car off, and it gets a solid 12.5v (fairly newish battery.) With the car running, I tested ... Your issue could be the alternator itself or the voltage regulator (a module within the alternator, which generates the signal to the DRL and A/ ...