Yes, I have that disabled. Since then I have seen it go longer than 5 hours. The longest I've seen is around 8. It will always eventually stop picking traffic up and have to be restarted though. Another annoying thing that I've noticed is that if I leave kismet running overnight, with it plugged into the charger, I'll go and check it the next day and my n800 will be off! At first I thought that when it was done charging, it would then run until it ran out of battery, since Im not sure if it will ever start charging again until someone pulls out the cable and sticks it back in. That would be a major charging flaw though, because it would mean you could never leave your n800 on for large amounts of time while plugged in.