Ep3 battery light

Hello everyone . Over 2 years ago I had my alternator and battery go out at the same time and obviously the battery light came on . I replaced the battery and alternator and the battery light did not go away . I drove the car for two years with no issues . Battery and alternator were fine .I got annoyed of seeing the light so I decided to replace the alternator again “warranty “ and battery “ warranty and still the light did not go away . I even went as far as replacing the electric load detector. The alternator fuse is not blown under the dash . I replaced the batter connectors since the others were old . And still nothing. Any of you guys know what I’m missing . I’ve already tested the battery and tested the alternator to see if it’s charging and everything works fine .