Battery Level - Garmin GPS 38 Owner's Manual

Battery Level Indicator
The Satellite Page also features a battery level indicator,
located below the status field to the left of the sky view,
which provides a graphic display of the condition of the
internal batteries.
The battery level indicator is calibrated for alkaline
!
batteries. Ni-Cad and lithium batteries will not
accurately display the battery level due to voltage
differences. No other receiver functions are affect-
ed by using Ni-Cad or lithium batteries.
It's always best to store your GPS with the batteries
!
installed to preserve the internal memory and data.
The GPS 38 features a self-charging lithium battery
that continually maintains a full charge while bat-
teries are installed. The lithium battery will maintain
the internal memory for 3 months in the event that
the batteries are removed or totally discharged.
Screen Backlighting
The GPS 38's automatic backlight feature illuminates
the screen display for a user-defined interval (the default is
15 seconds) after every keystroke. When backlighting is on,
a bulb icon will appear at the bottom left of the sky view.
To turn the screen backlighting on or off:
B
1. Press the
2. To adjust the duration of screen backlighting, refer to the
operation setup section (page 46).
Using the screen backlighting can greatly affect
!
battery life. If you're using your GPS primarily in
daylight hours, you should keep the backlight time-
out at the default 15 second setting.
key.
R E F E R E N C E
Battery Level &
Backlighting
A bulb icon will appear on
the Satellite Page whenever
the screen backlighting is
on. The backlight will turn
on for the time selected after
every keystroke.
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