Garmin GPSMAP 276C Owner's Manual - Page 10
Charging the GPSMAP 276C, Using Charge Mode
UPC - 753759044138
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Getting Started > Charging the GPSMAP 276C Charging the GPSMAP 276C Before using the GPSMAP 276C charge the battery. Plug the power cable into an external power source to charge. You can use the unit while it is charging. To charge the unit's battery: 1. Lift the rubber weather cap to expose the power connector on the back of the unit. See the image on page 1 for connector location. 2. Align the notches and push the plug into the connector until fully seated. 3. Plug the 12-Volt adapter into an available AC outlet, or cigarette lighter receptacle if you have a cigarette lighter adapter. Use care when routing the cable; make sure it does not interfere with vehicle operation. The unit begins charging as soon as external power is applied. TIP: Placing the unit in Charge Mode charges the unit more quickly than when the unit is turned on and reduces draw on the vehicle/vessel battery. When you turn on the GPSMAP 276C the power source indicator on the GPS tab shows the unit is operating off battery power ( ), that the unit is charging ( ), or that an external power source is in use ( ). Using Charge Mode If you want to charge the battery when you are not using the unit, you can put the unit into Charge Mode. To put the GPSMAP 276C in Charge Mode: 1. Connect the GPSMAP 276C to an external power supply. 2. Press and hold the POWER key. Instead of completely turning off, the GPSMAP 276C goes into Charge Mode. Note: While in Charge Mode, the GPSMAP 276C draws a small amount of current from the vessel/vehicle battery. To avoid discharging the vehicle's battery, disconnect the external power cable from the unit when not in use for several days. Over time, you might notice that the lithium-ion battery in the unit is not holding a charge any more. This is common for lithium-ion batteries. Contact Garmin or your Garmin dealer to order a battery pack replacement if you are experiencing battery charging issues. GPSMAP 276C Owner's Manual