CES 2014: Saucepan 'can charge up smartphone'
9 January 2014 Last updated at 11:32 GMT
The Power Pot is a saucepan that can charge a smartphone.
Using the heat from a normal stove, or even a natural fire, it charges in roughly the same time as a full charge from a normal charger, say its makers.
Caleb Light demonstrated the technology to the BBC's Dave Lee.