C172 Classic … On the Ground, everything off , except battery & Alternator.
Engine Running … Throttle Min or Max ( no difference)
Battery Fully charged, (or will be after a few minutes running like this)
Issue: Ammeter reads “Charging” almost 60 AMPS !! …
Everything on the main bus is OFF, so the current cannot be going there.
So, even with a fully charged battery, MSFS’s simulated alternator is still “PUMPING” almost 60 amps into the fully charged battery … - Poor battery, not going to last very long !!! (and they are not cheap )
i’m pretty sure swollen batteries are not good for anything they’re plugged into.
I’m no pilot but troubleshooting is pretty similar whether it’s a plane or a computer. Do you get the same behavior with another battery plugged in? If not, your battery is toast. If so, you’ve got an electrical problem of some sort. A sensor or something.
Once again i’m not a pilot, but i hope this helps.
The Electrical Problem is that the Alternator should not put out a current based on it RPM – that curve should be the MAX Current the alternator can output, if required, NOT, what it outputs all the time
Sounds like a regulator issue to me.