Garmin Forerunner 945 Owners Manual - Page 43

2 Plug the large end of the USB cable into a USB charging port. 3 Charge the device completely. Tips for Charging the Device 1 Connect the charger securely to the device to charge it using the USB cable (Charging the Device, page 36). You can charge the device by plugging the USB cable into a Garmin approved AC adapter with a standard wall outlet or a USB port on your computer. Charging a fully depleted battery takes up to two hours. 2 Remove the charger from the device after the battery charge level reaches 100%. Specifications Forerunner Specifications Battery type Rechargeable, built-in lithium-ion battery Battery life, watch mode Up to 2 wk. with activity tracking, smartphone notifications, and wrist-based heart rate Battery life, watch mode Up to 14 hr. with activity tracking, with music smartphone notifications, wrist-based heart rate, and music playback Battery life, activity mode Up to 36 hr. in GPS mode with wrist-based heart rate Battery life, activity mode Up to 10 hr. in GPS mode with wrist-based with music heart rate and music playback Battery life, UltraTrac mode, no music playback Up to 60 hr. Up to 50 hr. with wrist-based heart rate Media storage Water rating Operating temperature range Charging temperature range Up to 1,000 songs Swim, 5 ATM1 From -20º to 45ºC (from -4º to 113ºF) From 0º to 45ºC (from 32º to 113ºF) Wireless frequency 2.4 GHz @ +9 dBm nominal HRM-Swim Specifications and HRM-Tri Specifications Battery type User-replaceable CR2032 (3 V) HRM-Swim battery life HRM-Tri battery life Operating temperature range Wireless frequency/ protocol Water rating Up to 18 mo. (approximately 3 hr./wk.) Up to 10 mo. for triathlon training (approximately 1 hr./day) From -10° to 50°C (from 14° to 122°F) 2.4 GHz @ +1 dBm nominal Swim, 5 ATM1 Device Care NOTICE Avoid extreme shock and harsh treatment, because it can degrade the life of the product. Avoid pressing the keys under water. Do not use a sharp object to clean the device. Avoid chemical cleaners, solvents, and insect repellents that can damage plastic components and finishes. Thoroughly rinse the device with fresh water after exposure to chlorine, salt water, sunscreen, cosmetics, alcohol, or other harsh chemicals. Prolonged exposure to these substances can damage the case. Do not store the device where prolonged exposure to extreme temperatures can occur, because it can cause permanent damage. Cleaning the Device 1 Wipe the device using a cloth dampened with a mild detergent solution. 2 Wipe it dry. After cleaning, allow the device to dry completely. TIP: For more information, go to www.garmin.com/fitandcare. Replacing the HRM-Swim Battery and the HRM-Tri Battery 1 Remove the sleeve from the heart rate monitor module. 2 Use a small Phillips (00) screwdriver to remove the four screws on the front of the module. 3 Remove the cover and battery. 4 Wait 30 seconds. 5 Insert the new battery under the two plastic tabs with the positive side facing up. NOTE: Do not damage or lose the O-ring gasket. The O-ring gasket should remain around the outside of the raised plastic ring. 6 Replace the front cover and the four screws. Observe the orientation of the front cover. The raised screw should fit in the matching raised screw hole on the front cover. NOTE: Do not overtighten. 7 Replace the sleeve. After you replace the heart rate monitor battery, you may need to pair it with the device again. Changing the Bands You can replace the bands with new Forerunner bands or compatible QuickFit® bands. 1 Use the two screwdrivers to loosen the pins. 1 The device withstands pressure equivalent to a depth of 50 m. For more information, go to www.garmin.com/waterrating. Device Information 37