P.S.    I did ask the Verizon store sales rep about purchasing the extended battery or the power pack w/cover. 
          He said that he would recommend the extended battery over the power pack. 

          This is simply info, take it or leave it...      If I were to ask 10 different Verizon reps., via the phone (Customer

          Service) or in a store, whereever .......  I would get 10 different answers.  Jus' Sayin' .................