2001 F250 5.4 Battery Light
 

After replacing battery, 2nd Alternator in weeks , solenoid, my battery light hasn't gone off, it occasionally flickers but for the most part has been on , checked everything that I think I possibly could've checked but no luck, any insight would be appreciated, the dealer garage that I spoke with wasn't very helpful either. but before I send this to a garage id try here, thanks

Did you use a volt meter while the engine was running and battery light flickering? What did it read at the battery terminals? At the main wire off the alternator?