Hi all, new here and hopeing someone can help me... I have a 66 austin healey sptite. probally a silly question but here goes,,, how do you charge a positive ground battery? unhook the cables and charge as a reg. battery, or is it a reversed charge ? I have never run across this. and how hard would it be to change the polarity? hope this is not asking alot being new and all but no one where I live as any idea... thanks alot....