When the MX7 wakes up, the Display Backlight and the Power Off timers begin the countdown again. When any one of the above events occurs prior to the Power Off timer expiring, the timer starts the countdown again. The MX7 should be placed in Suspend mode before hotswapping the main battery.
Off Mode
The unit is in Off Mode when the main battery and the backup battery are depleted. Insert a fully charged main battery and press the Power key to turn the MX7 On.