Garmin eTrex 20 User Manual

owner’s manual for use with models 10, 20, 30 39
Device Information
EN
Specications
Water
resistance
Rugged plastic,
waterproof to IEC
60529 IPX7
Battery type 2 AA batteries,
(alkaline, NiMH, lithium,
or precharged NiMH)
Battery Life Up to 25 hours
Operating
temperature
range
From -4°F to 158°F
(-20°C to 70°C)
About the Batteries
WARNING
The temperature rating for the
device (page 39) may exceed the
usable range of some batteries.
Alkaline batteries can rupture at
high temperatures.
Do not use a sharp object to
remove batteries.
CAUTION
Contact your local waste disposal
department to properly recycle the
batteries.
NOTICE
Alkaline batteries lose a signicant
amount of their capacity as
temperature decreases. Therefore,
use lithium batteries when
operating the device in below-
freezing conditions.
Maximizing Battery Life
You can do various things to
increase the battery life.
• Leave the backlight off when not
needed.
• Lower the backlight brightness
(page 38).
• Decrease the backlight timeout
(page 38).

Garmin eTrex 20 Specifications

General

Outdoor (hiking, trekking)	Yes
Marine (chartplotters, sounders)	No
Routes quantity	200
Number of waypoints	2000
Form factor	Handheld
Display diagonal	2.2 \
Display resolution	176 x 220 pixels
Display number of colors	65536 colors
Display size (HxV) (imperial)	1.7 x 1.4 \
Internal memory	1740 MB
USB 2.0 ports quantity	1
Battery type	AA
Battery life (max)	25 h
Battery technology	Nickel-Metal Hydride (NiMH)
Number of batteries supported	2

Weight and Dimensions

Depth	33 mm
Width	54 mm
Height	103 mm
Weight	141.7 g