It is possible that the internal battery has discharged, and is unable to recharge due to a blown fuse inside the cigar lighter plug or a blown fuse in the car's fuse block for the cigar lighter outlet.
- Unscrew and remove the silver or black, round end piece.
- Remove the fuse (glass and sliver cylinder) and replace with a new fuse.
- Ensure that the silver tip is placed in the end piece. Screw on the end piece.
Consult your car's owner's manual for locating the fuse block in the car. Both fuses must be good.
If you're unable to power up the c500 outside of the car (running on internal battery) your c550's internal battery may no longer be able to accept a charge. This will require a battery replacement - or use with a cigar adapter only. You may have to return the GPS to Garmin for a battery replacement - but there are some third party battery providers for some Garmin GPS units. If one is available for the c550, you may save enough money to make going the third party route worthwhile.
Please rate this replay if helpful - good luck!
You can download / view a copy of your c550 manual
here.
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