I assume I am like a lot of folks and have been leaving my car plugged in and charging more than usual without using it much. IE it is plugged in for several days at a time between uses. Twice in the last month it has displayed a steady red light. There is no indication on the displays inside that anything is wrong other that it is plugged in. If I unplug it and plug it back in all is good the blue light is displayed. Anyone else encounter this?