Garmin GPSMAP 640 - Manual (Page 10)

4 GPSMAP 620 and GPSMAP 640 Owner’s Manual
Getting Started
Important battery notes:
• Before using the GPSMAP 620 or the GPSMAP 640 for the first
time, charge the battery for at least six hours.
• The lithium-ion battery pack used in the device is primarily a
backup battery source. Use the device in a mount with external
power whenever possible.
• If the device will not be used for an extended time (longer than
one week), remove the battery pack.
Notice
The GPSMAP 620 and the GPSMAP 640 are waterproof to the
IPX7 standard only when the battery is connected and locked
in place. Use extreme caution around water when removing the
battery from the device.
Inserting and Removing a Secure Digital
(SD) Card
To preserve the IPX7 water resistance of the GPSMAP 620 or the
GPSMAP 640, the SD card slot is located under the battery.
To insert an SD card:
1. Remove the battery pack. The SD card slot is in the bottom of
the battery compartment, on the opposite side from the battery
contacts.
2. Place an SD card into the opening with the label showing, with
the SD card contacts facing away from the battery contacts.
3. Slide the SD card into the SD card slot, and press until it clicks
softly and locks in place.
4. Insert the battery pack.
Inserting an SD Card
To remove an SD card:
1. Remove the battery.
2. Press in on the SD card until it clicks softly and releases from
the SD card slot.
3. Remove the SD card.