Remove the protective film from the new battery.
Install the new battery, make sure the "+" symbol faces up.
Place one edge of battery into holder against metal spring retainer while pulling battery lightly into metal spring. Carefully press back end of battery down into holder past tabs.
Important: Do not replace the processor, if the battery holder tabs  are broken. Temporally hold the battery in place and apply hot silicon glue to secure the battery.
Note: Avoid contaminating the battery holder contact points with silicone.
Set the machine date and time. Refer to the Next Generation Control - Date/Time Change procedure.