Every now and then I am forced to remove the device from my truck and charge it inside my house; the device consumes more power than the internal charger can replace while being used. It can operate without any [B]Low Battery[/B] warning for quite some time, but eventually I begin to get that [B]Low Battery[/B] message when I engage the ignition. It works just fine for a good amount of time after that starts happening, but then it gets stuck on the GARMIN logo screen, not having enough power to do more than that. Then it gets uplugged and charged in the house again, to begin the irritating "dance" all over again. [I]Wash, rinse, repeat, ad nauseum[/I].