I have a '95 Contour. I have replaced the battery, alternator, serpentine belt, put in new spark plugs, air filter. Unable to drive car because the battery won't stay charged. Any suggestions on what is causing the problem? My son-in-law thinks the ignition fuse went out because it is black around the fuse section. Thanks.

check the megafuse for the alternator. Chances are it took a crap when the alternator did.