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• SettingtheGPSSettingstoPowerSavingmode
• DisablingGPSwhileindoors
• Usingbatterieswithhighermilliampratings(suchasDuracellUltras,EnergizerE2s,etc.)
Why are the new batteries that I put in the device the last time I used it (a month ago) already
dead?
Because the Earthmate GPS PN-20 has a real-time clock that requires power even when the device is
powered off, your batteries are constantly in use. If you use your Earthmate GPS PN-20 sporadically
(more than a month between uses), remove the batteries for long-term storage and then reinsert
them when you want to use the device to improve battery life.
Why does it take so long to find satellites?
Acquiring satellite data takes longer if the batteries are low or if the Earthmate GPS PN-20 does not
have a clear view of the sky. Be sure that trees, buildings, and other obstacles are not blocking the
Earthmate GPS PN-20 when you begin tracking.
Other factors, such as if you haven’t used the device for a long time or if you’ve moved the device a
great distance from its last location, can affect the amount of time it takes to find satellites.
How do I reset the Earthmate GPS PN-20 when it will not turn off?
You can reset the Earthmate GPS PN-20 by holding the Power button for seven seconds. If that does
not work, remove and replace the batteries to reset the Earthmate GPS PN-20.
Why won’t my Lithium-ion battery hold a charge?
The Li-ion battery is designed to last for 300-500 uses, depending on environmental conditions.
Note: The charging circuit in
thePN-20wasdesignedforop-
timumoperationwiththeRCR-
V3Li-Ion battery soldthrough
DeLorme.OtherRCR-V3Li-Ion
batteriesmayworkandcharge
inthePN-20,butDeLormecan
makenoguaranteesofcompat-
ibleoperation.