Item 1001248119 has must read information.
: For EC450/520AJ service use only, order one of the following: Module I D 1:1001273794, Module ID 2:1001273795, Module ID 3:1001273796, Module ID 4:1001273797, Module ID 5:1001288125, Module ID 6:1001288126.(Modul e ID is indicated on the battery installed on the machine.)
