Battery Tester's Voltage Anomalies Deciphering Fluctuations While Driving

Get the battery load tested. Only way to confirm battery is indeed good and not having a weak cell only holding a ''surface'' charge. ... Check it out and learn how to diagnose an alternator! For More Info visit us at http://1aau.to/h/b8D/ ⚠ DISCLAIMER: While 1A Auto strives ... I was driving the other day and the check gauge light came on. My ... while, then voltage drops again, shut off engine, restart, etc. On the way home on a 150 mile drive we noticed the volt meter fluctuate between 12 and 14 volts (I had a fluke meter with me). It was warm ... You check connection at battery? The alternator/ regulator and battery are a loop. Regulator reads battery and knows how much at test rpm of ... drops to 12.5 while driving ... If it keeps up, then have a FLAPS load test the battery no alternator at RPM you are seeing the fluctuations. Yes normal behaviour. In your case, something else is going on. Check your battery post for corrosion. 2023 ... Depending on the RPMs and electrical load it will fluctuate up and down. It should be in the 12-14v range most of the time though. Its only ... When the batteries need to be charged, the voltage goes up to 14.4v or so, and when it senses they are charged it drops way down, I've seen 12.9 ... Need Help? Ask a mechanic online, 24 hours a day here: https://tinyurl.com/24-7-mechanic In this video we'll talk about different reasons ...