Originally Posted by
Bacciagalupe
The problem is exclusively with the 500.
I actually tested my 500 and 810. The 810 can run when attached to power, the 500 does not. The cable that ships with Garmin units is a standard micro USB. The issue is strictly with the pinouts on the 500.
And here's the experience of a guy who did RAW/RAAM, and saw the same issues with just the 500:
https://forums.garmin.com/showthread...harger&p=95222
Fortunately, it is now fairly easy to work around it, if you're willing to buy the modified cable from Gomadic. So, you do have the option of using a battery pack if you like.
Ah, good as I've used an external battery pack with my 510 and reg USB cable, and had zero issues. I thought maybe I was missing something, lol.