So long story short I have a case Ingersoll 446 it was my grandfathers and I took the liberty of replacing the starter which was not fun at all. But for as long as I can remember this tractor hasn’t been charging itself when ever I want to use it I have to charge it. If I run it for awhile and shut it off then try turning it back on the amperes just says it’s dead. Do I need a new rectifier or is it something else??