Driving Insights Battery Tester Uncovers Fluctuating Patterns

Some of the battery voltage fluctuation might be normal. Check your owners manual about the special feature your truck has that was designed to increase ... The voltage regulator shuts down the alternator as the battery reaches its charge and the gauge gradually drops to battery voltage. When there's ... It's normal. Modern cars will fluctuate voltage depending on load and battery charge state. Hope you got the answers you were looking for, but ... Battery Voltage Meter Fluctuating. Dealer claims it's normal. ... Service claims it's suppose to according to battery needs. Never heard that ... I'll have to stop by Autozone and have them do a test on the alternator, I installed a brand new interstate battery about 7ish months ago give ... While the voltage gauge is at 0v, and the engine is still running, i pop the hood and put a battery/charging system tester on the battery ... Follow instructions for testing. ... Because of the fluctuating voltage, chances are you need new alternator brushes, in this case Jeepman's ... Your batteries are likely fully charged, or hot, and your engine needed to have less load on it so the alternator was cut back and the voltage ... Usually when its an alternator, the voltage drops when the engines up in the rpm range, because it cant charge the battery sufficiently. Id go ... It's not likely that the efi would even run on 4 volts. Try turning on the headlights, watch the volt meter and light brightness at the same ...