I think i understand what your asking, my plan was like i said use a triple A battery back build a circuit to drop it to 2.5-3.0V to power the PIC. So i would need a driver that the PIC could send signal to then turn the FET on to begin the charging, if i can find a driver that takes say 5V or 10V then i can just get a battery pack to match up. I think i am saying this all right, i just got some software to put the ciruit on a virtual layout. Thanks again for all your help i know i am really newb!
Do i build a driver or buy one?