Mastering Battery Behavior Decoding Fluctuating Readings

I replaced the original battery this past January and had no issue until this past weekend in the middle of a 900-mile road trip. While cruising ... Sounds like a bad battery, but I would also check the output of the alternator to make sure it's up to par. You need to see at at least 13.5 ... Ford has a battery management controller in these vehicles these days, and because it is running an AGM battery rather than the traditional lead ... Yes normal behaviour. In your case, something else is going on. Check your battery post for corrosion. 2023 ... If your aftermarket battery bolt is too long (the end screwed to the battery), it may pull the lead plate with the female threads out from the ... 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 ... 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 ... The battery is still fluctuating due to prior charging/discharging (no full rest); The battery has been moved (especially from in- to outside of ... Voltage varies depending on battery conditions, and which electrical loads are switched on. All the voltages you listed are in the normal range. Seems to be a normal variance between charging/not charging once a battery is essentially full. Your fairly lengthy trip probably gave your ...