Totes Lock De-Icer with Built-in Flashlight While everyone is shivering and chipping away at the ice, you're warm and on the road in seconds! This pocket-sized de-icer is battery powered to deliver instant heat to the lock probe. Simply slide the probe out, insert it into the frozen lock and push the "on" button. In just a few seconds you can unlock your car and go! There's even a built-in light for those dark parking lots and comes with a sturdy key ring.