Problems

Today I Went And Boughta New Battery And Got The Alternator Check At One Of Those Automotive Stores And Everything Tested Good. Now I Started My Car Up And My Battery Voltage Is Under 12 And When I Put My Foot On The Break It Cuts Off. Someone Help Me Please I Need To Get My Car Back On The Road.

By no means am I a mechanic, but my suggestions would be take it to a different shop and have the alternator rechecked, maybe check the battery connections and make sure they're clean, umm...Maybe defective battery?

the battery is brand new.. the posts are clean.. the alternator is good and everything i made sure i had all that tested before i posted this.