I don't know if this has happened to a lot of people, but the battery in my 680 stopped working. I thought I would be able to use it without a battery since I never take it out of the car. Without constant power, the GPS takes a long time to acquire satellites. In more metropolitan areas I cannot get a signal at all. The MSN feature also requires constant power to get updates if you subscribe to that service. I found a replacement battery on eBay for $12. At that price I figured I would take... Read more →