My Twizy only charge up to 94% it has been plugged in for 32 hrs. When I try to start, I hear three beeps and the display looks like on the image. If I put on the headlights the whole system shuts down, when I start again, everything thing seems normal but the clock had been reset. Is this a hardware fault or can it be problems with the 12v battery? It is rather cold in Sweden - 4 to - 10 Celsius the last days.