Grazing through EBay I found this little gadget and at less than a fiver was too tempted! It fits into the dashboard styling rather well and gives reassurance that Bette Bumble's battery is doing well, tells me how warm my knees are and has a USB outlet as well. If it made tea and toast it would be perfect! NEW Car Cigarette Lighter Digital Voltmeter 2.1A Thermometer USB Charger LED First photo is with ignition on. Second with engine running. I Love a good gadget!!!