When I do the Backup Battery (Ignition) check in the before takeoff checklist here is what happens.
When I go Ignition right, left ignition light illuminates as it should, no RPM drop. When I switch the Backup Battery to "Emergency", the engine quits. However if I switch the ignition to Left and turn the Backup Battery to Emergency, the engine continues to run.

Backwards from what the checklist describes......is this an easy fix??

Jon