Have you tried plugging your Edge into a power source using the short charger cable that came with your Garmin charger? I have one, and it is the non-standard cable of which you speak. So think all you have to do is buy the charger with the Edge and you're good. I'm a cautious person and never plug my Edge directly into a computer. I use a microSD card, put the card in a reader, and plug that into the computer. I plug the Edge into a charger, along with all my USB lights and devices, each with its own charger. I have a dedicated outlet with that stuff always plugged in. I've heard too many stories of scrambled files. Maybe those are from the earlier Edge products, but still.