‘It’s simple to start a fire by connecting a standard paperclip to a car jump starting battery pack and turning it on. The high current 12 volt electricity quickly vaporizes the paper clip and ignites the kindling. My dad and I came up with this technique at a picnic at Lake Cleveland after we realized we did not bring any other (easy) fire starting options. It will work even if the battery pack is not fully charged. It will also work with different conductive materials or even a car battery directly; it will just take a little experimentation.’
Please observe all safety precautions. And only use in an emergency.