Abstract: A bat weight and protector which is a removable soft-sided weight and protector for the attachment to a baseball or softball bat for the purpose of warming up a batter in the on-deck circle, prior to entering the batter's box and facing the pitcher. The bat weight and protector is comprised of a soft weighted cylindrical portion made of rubber or other suitable material, a retainer ring and webbing straps, which at one end are equally spaced around a retainer ring and stitched thereto, and at the opposite end are looped around the cylindrical portion and stitched thereto. A knob end of a bat is passed through the cylindrical portion of the bat weight and protector and further through the retainer ring until the tapered portion of the bat prevents further travel. In this position, the cylindrical portion of the bat weight and protector is over and about a barrel of the bat. This position maximizes the batter's swing resistance during warm-ups and protects the striking surface of the bat.