Garmin eTrex 10 Quick Start Manual - Page 3

➏ ➐ ➑ ➒ ➏ Mini-USB port (under weather cap) ➐ Battery cover ➑ Battery cover locking ring ➒ Mounting spine Battery Information ‹ warning The temperature rating for the device (-4°F to 158°F, or -20°C to 70°C) may exceed the usable range of some batteries. Alkaline batteries can rupture at high temperatures. 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. The device operates on two AA batteries. Installing AA Batteries You can use alkaline, NiMH, or lithium batteries. Use NiMH or lithium batteries for best results. 1. Turn the D-ring counter-clockwise, and pull up to remove the cover. eTrex 10 Quick Start Manual 3