Garmin GPSMAP 640 - Manual (Page 9)

GPSMAP 620 and GPSMAP 640 Owner’s Manual 3
Getting Started
Powering the Device On and Off
Power on the GPSMAP 620 or the GPSMAP 640:
• If the mounting bracket on your boat or in your car is connected
to power, the device powers on when you place it in the mount.
• The device powers on when external power is supplied through
the DC IN connector.
• To power on the device manually, press and hold until the
Garmin logo appears on the screen.
Power off the GPSMAP 620 or the GPSMAP 640:
• When you remove the device from the mounting bracket or you
remove power from the DC IN connector, you will be prompted
to continue on battery power. Touch Turn Off to power off the
device.
• To power off the device manually, press and hold until the
unit powers off.
Note: If you manually turn off the device while it is connected to
a power source, it will continue to charge the battery.
Notice
If the marine mounting bracket is not wired through the ignition
or a switch, the GPSMAP 620 or GPSMAP 640 will drain the
boat battery, even when powered off. Remove the device from the
mounting bracket to avoid draining the boat battery.
Removing and Inserting the Battery Pack
Notice
This product contains a lithium-ion battery. To prevent damage,
remove the unit from the vehicle or boat when exiting or store it
out of direct sunlight.
To remove the battery pack:
1. Remove the GPSMAP 620 or the GPSMAP 640 from the
mounting bracket.
2. On the back of the device, lift up the battery locking ring and
turn it counter-clockwise.
3. Tilt the battery pack away from the device and lift it out.
To Insert the battery pack:
1. On the back of the GPSMAP 620 or the GPSMAP 640, fit the
bottom of the battery pack into the device.
2. Tilt the battery pack toward the device until it is tight.
3. Turn the locking ring clockwise to lock the battery pack in place.