I have found out (accidentally) that if I plug my Garmin's USB charger cord into a computer that is not turned on, not only will it not charge it, it completely discharges it!
Sounds like a good idea. I'm going to give that a try.
Thank you for the suggestion. Plugging the Garmin into a "dead" machine did the trick although it still took a few days to drain it. Still that's faster than a couple weeks.
Glad it helped! I know how frustrating it can be to not be able to get your data off of your Garmin.