Over charging

[PMMartin66]

I have 2008 Ford Ranger 3ltr auto, that is putting to much power back to the battery I had the alternator checked as was fine it doesn’t have a regulator on the back, where in the engine bay would it be if anyone knows would be grateful

thanks

[unofix]

Sorry no idea of the location, but this type of fault can be caused by a poor ground connection from the negative of the battery. If the cable from the neg terminal to chassis has a high resistance then the charge controller sees the battery voltage as being low and tries to charge it. Also worth checking the bolt that fastens the cable to the chassis for signs of rust.