Ford 2011 Edge Owner's Manual page 332

If the battery has been disconnected or a new battery has been installed,
the clock and radio settings must be reset once the battery is
reconnected.
• Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
Battery management system
The Battery Management System (BMS) monitors battery conditions and
takes actions to extend battery life. With the engine off, the audio system
may turn off due to low battery state of charge conditions or the ignition
has been in accessory position or on position with the engine off for
approximately 45 minutes. A message may be displayed on the
instrument cluster or center stack display to alert the driver that battery
protection actions are active. See the Message Center in the Instrument
Cluster section and Entertainment Systems section for more
information. These messages are only for notification that an action is
taking place, and do not necessarily indicate that an electrical problem
exists or that the battery requires replacement.
Electrical accessory installation
To ensure proper operation of the BMS, any electrical devices that are
added to the vehicle should not have their ground connection made
directly at the negative battery post. A connection at the negative
battery post can cause inaccurate measurements of the battery condition
and potential incorrect system operation.
Note: Electrical or electronic accessories added to the vehicle may
adversely affect battery performance and durability and may also affect
the performance of other electrical systems in the vehicle.
When a battery replacement is required, the battery should only be
replaced with a Ford recommended replacement battery that matches
the electrical requirements of the vehicle.
2011 Edge (edg)
Owners Guide, 2nd Printing
USA (fus)
Maintenance and Specifications
RECYCLE
331