Dodge 2009 Aspen Owner's Manual page 74

72 WHAT TO DO IN EMERGENCIES
7. If the 12 Volt battery charger has been properly
connected and the system determines that the conditions
are correct for charging, the Navigation radio will display
a message "CHARGING in Progress".
Charging In Progress
NOTE: To minimize the charging time, it is recom-
mended to leave the key in the OFF position while in the
"CHARGING in Progress" mode, however the key may
be turned to the ON/RUN position to use an accessory.
Allow the system to charge until the Navigation radio
displays the "Attempt to start vehicle" message.
Attempt To Start Message
8. Attempt to start the vehicle, if the vehicle starts, leave
it running and turn off the 12 Volt battery charger.