Question about Garmin GPSMAP 276C GPS Receiver

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Gps 276C doesn't charge fully

My 276C never indicates a full charge, either on mains or battery. It is 4 months old. I have completely discharged and recharged it at least 5 times. The battery graphic shows "charge completed" when the blue colour is about 90% to 95% across the battery.
Not a practical problem so far, The GPS the is otherwise a great piece of equipment.
Thanks for any advice.

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  • Simhec Feb 01, 2008

    Same problem here. The 276c shows "Charge Complete" but the battery indicator below does not even go beyond the letter g (30%)

  • Anonymous Apr 18, 2008

    I also show a "Complete Charge" but actually have only 15% battery life remaining. Unit is 3 months old....... Trying to find a fix at this time......


  • mcooke808 Jul 27, 2008

    My 276C is also nearly new and after 2 weeks good use the battery indicator only shows half charge and about 5 hours instead of around 9 hours at the start. I intend to send back to retailer.



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Garmin has updates for this issue on the website but it doesn't fix all the units. Mine for example still does the whole "charge complete" thing when showing 1/2 a battery. The funny thing is I let it drain and the unit stays on for about 10 hours after it says the battery is dead. Garmin is working on a new fix and they said it should be up in about a week.

Posted on Aug 13, 2008

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Something is not right. I suggest you return it to the retailer for warranty repair.


Posted on Jan 30, 2008


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i can assume your device uses a Lithium-ion battery. When dealing with these batteries it is best to charge them often. If you charge the GPS to full then let the batteries go all the way down before recharging you are hurting the life of your batteries as well as the amount of time you can get at a full charge. 80% depth-of-discharge is recommended. Also the batteries age even when not in use, so if it is old get a new one.

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