if i put new battery could something other then alternator be wrong like a fuse?

so they can do that check at auto zone or orileys?the reason im asking is the battery was over $100 and a new alternator close to $200 so i dont want tobuy the wrong par t again and still not have the problem fixed

yes the parts house can check it,like you should have done before guessing at the battery.you must have a full charge on the battery before they can check your alternator while mounted in the car.like pushrod said,the alternator ain't charging,and will drain your new battery every time!