sounds like first off if your battery has been bad for a while, if its not getting charged it may be your wiring or the alt took a crap. you may not have enough power to get it started. have you tried jumping it? I would start by pulling the battery and alt and have them tested by auto zone or other parts store. also your profile info would help so we knew what you were driving. as for the fuel pump, I myself have not ever noticed mine so someone else might know if its a noticable sound with the key on.