Charge your iPhone and other gadgets with a camp stove
The BioLite wood burning campstove converts heat to electricity and you can just use twigs so no need to carry fuel cells or oil.
It can boil water in 4.5 minutes and 20 minutes of charging an iPhone 4S (2G) provides 60 minutes of talk time. Charging times vary by device and by strength of fire.
Fire Power Output Peak: 3.4 kW (LO), 5.5 kW (HI)
USB Power Output Max continuous: 2W @5V, Peak: 4W @5V
Using BioLite’s patent-pending thermoelectric technology, BioLite Stoves convert heat to electricity that powers a fan to make the fire ultra-efficient.
It costs $129.00 and you can buy it here.