95 Talon not charging properly

Ok, we have this 1995 Talon, and we are now having to swap batteries about once a week. Surely the alternator is charging at least part time for the battery to last so long isn't it?? Any help would be welcome.

You need a new alt. it is probably charging on the low end (week charge) bring it to a parts store and have them check the volts or if you have a fluke you can do it yourself. Should be right around 14.5 charging