A lighter that can be recharged with a solar panel? Sounds like the perfect survival tool. The UST Brands TekFire Fuel-Free Lighter is powered by a lithium-ion battery so the lighter does not require any fuel. It uses a high-voltage arc to start fire and can be recharged using a USB cable connected to a portable battery. Pretty handy considering there is a potentially limitless amount of energy you can get from the Sun as long a you have a solar panel. No need to worry about running out of fuel.