Charging the GPSMAP 276CBefore using the unit, you might need to charge the battery in theGPSMAP 276C. Plug the unit into an external power source tocharge. 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 connectoron the back of the unit. See the image on page 1 forconnector location.2. Align the notches and push the plug into the connector untilfully seated.3. Plug the 12 Volt adapter into an available AC outlet, orcigarette lighter receptacle if you have a cigarette lighteradapter. Use care when routing the cable; be certain that itdoes not interfere with vehicle operation.The unit begins charging as soon as external power is applied.Placing the unit in Charge Mode charges the unit more quickly thanwhen the unit is turned on and reduces draw on the vessel or vehiclebattery.Information About Charge ModeApplying external power to the GPSMAP 276C automatically turnson the unit for full operation. If the battery is present and needs to becharged, the external power source charges the battery while the unitis in use.If you do not want to use the unit, but you would like to charge thebattery, you can put the unit into Charge Mode. Connect the unit toan external power supply. Press and hold the POWER key. Insteadof completely turning off, the unit now goes into Charge Mode.Charge ModeNOTE: While in Charge Mode, the unit draws a small amount ofcurrent from the vessel or vehicle battery. To avoid dischargingthe vehicle’s battery, disconnect the external power cable fromthe GPSMAP 276C when not in use for several days.After using the unit a lot, you might notice that the lithium-ionbattery in the unit is not holding a charge any more. This is commonfor lithium-ion batteries. Contact Garmin or your Garmin dealer toorder a battery pack replacement if you are experiencing chargingissues with your battery.2 GPSMAP 276C Owner’s ManualGETTING STARTED > C HARGING THE GPSMAP 276C
