Originally Posted by
IndianaShawn
I use this..........
http://www.energizerpowerpacks.com/us/products/xp8000/
It powers my GPS for about 14 hours.
I had bought the Charging kit a few years ago and it included this USB adapter. This is the tricky part. When you plug it in to the computer, it goes into a computer mode as if you are updating it or loading waypoints via the Garmin software. If you use this little 90 degree adapter first then it goes into a regular mode as if you plugged it into your cigerette lighter 12 volt power supply. I don't understand the complete reason for this but it is needed for the bicycle setup. Plus it gives me a good angle to plug it in. I have looked for the same kit and I don't even know if its offered anymore. Again, I don't understand why.
UPDATE: I found the kit with the adapter.........here ya go............
http://www.scosche.com/consumer-tech/product/2170
That's strange. From the pic that right angle connector looks either like a male (small) and female (large) mini USB connector. Maybe I am wrong? Also if we just look at a car cigarette lighter charger like all GPS units have, all it does is provide power but with a mini USB connector and more importantly the GPS still works. If we duplicate that with an external battery pack with a mini USB output it should do the same, I'll hasten to add that I am not an electronics guru, nor do I want to fry the GPS. There's no harm in getting an external battery pack and trying it out
if I can use my Car GPS then I can save $650 for the Edge800... in any case I'll check out the Scosche product as well. Thanks