When Eastman strikes Morgan with his bo staff after first releasing Morgan from the cell, the staff bends backward as a rubber stunt prop would.
Car batteries would be useless by now, even ones used from the start, their lives would be over. Batteries found would be flat and useless after first season.
Eastman asks Morgan "Why?" when Morgan says he had to kill everyone. As a forensic psychologist, Eastman would know one of the cardinal rules of therapeutic communication is never to ask "why" as it creates barriers to open communication.