GLENDALE, Ariz. -- Together, the pitcher and catcher on a baseball field are said to comprise the "battery." Their working dynamic powers a club pitch after pitch. A year ago, the Dodgers' battery took longer than usual to recharge.Yasmani Grandal was new to the team. A.J. Ellis was adapting to a new routine as the backup catcher, and his intel could help Grandal only so much.