1994 Chevy Truck battery not charging

hi my battery is new my starter is new and my alternator is new, my old alternator i think messed up the battery, i replaced them in this order, battery, alternator, then starter but the battery was completely drained after leaving it hooked up over night, so i took it back where i bought it and they recharged it and i got a new alternator also but now its like the battery doesn't have enough juice to start the motor..