Garmin eTrex 20x Owners Manual - Page 41
Specifications, About the Batteries, WARNING, CAUTION, Maximizing Battery Life
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Specifications 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 From -4°F to 158°F temperature (-20°C to 70°C) range About the Batteries warning The temperature rating for the device (page 41) may exceed the usable range of some batteries. Alkaline batteries can rupture at high temperatures. Do not use a sharp object to remove batteries. Device Information caution Contact your local waste disposal department to properly recycle the batteries. notice Alkaline batteries lose a significant 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 40). • Decrease the backlight timeout (page 40). eTrex Owner's Manual 41