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Garmin 620 reverse charging all of a sudden - but only on computer
Former Member
My 620 all of a sudden started reverse charging. But only when it's plugged into my computer (which is where I always charge it). If I unplug it, and use the same chords, but plug it into my external power bank, it charges just fine. Any ideas? I don't like to keep draining my spare power bank and having to recharge it every night (the power bank charges fine using the computer btw).
