Garmin GPS 12XL Owner's Manual (Software Version 4.0 and above) - Page 8

INTRODUCTION Battery Installation Battery Installation Remote Antenna Installation An optional remote antenna may be used with the GPS 12XL. The remote antenna will improve the receiving capabilities of the unit by magnifying weaker signals which the built-in antenna may not be able to use. The remote antenna is attached by plugging it into the connector on the back of the unit (see above). Contact your GARMIN dealer for remote antennas and accessories. The GPS 12XL operates on 4 AA batteries (included), which are installed at the base of the unit. These batteries provide up to 12 hours of use. To install the batteries: 1. Remove the battery cover by turning the thumb loop at the bottom of the unit 1/4 turn counterclockwise. 2. Insert the batteries into position. The battery pole you can still see should match the symbol (+ or -) marked on the case. 3. Replace and secure the battery cover by turning the thumb loop 1/4 turn clockwise. Battery life varies due to a variety of factors, including temperature and backlighting. You may find that lithium batteries provide longer life in colder conditions. 4