Battery Tester's Chaotic Fluctuations Resolving Issues While Driving

The voltage at the battery should not drop below 12 volts engine off for a healthy battery, and not go above 14.5 when running. You may have a battery or ... Short drives are normally a cause of battery/charging issues and so you are not fully charging the batteries. Hence the system charging voltage ... Noticed today my volts are fluctuating while RPM's are near or above 2000 on highway trip. At stop light had battery light come on. yes perfectly normal. The ELD controls/adjusts the amperage outputted by your alternator depending on the load seen by the ELD. Apr 6, 2017 | 05 ... Ford has a battery management controller in these vehicles these days, and because it is running an AGM battery rather than the traditional lead ... My latest issue is that every 2 or 3 days the battery guage will drop to 9V and she won't charge. The alternator tested good at the parts store. If the truck was saying 14+ while driving the entire time, there is probably something wrong as the "smart" charging system should only charge ... The battery is still fluctuating due to prior charging/discharging (no full rest); The battery has been moved (especially from in- to outside of ... 2021 got a warning “service charging system vehicle may stall” battery voltage fluctuates 14.5 down to 12.5 while driving can't see what the ... I installed a AGM battery and with a volt meter I am reading 14.9-15.3 volts at the battery with it running in park. The needle on the dash ...