If you're lost in the wild and your GPS and cell phone don't have a charge, a solar charger could power up your electronic devices and help to lead you to safety. Solar chargers convert the sun's rays to 12V electricity and can be used for a number of electronic devices, including cell phones, GPS receivers, lanterns, handheld radios and other portable electronics.
Solar chargers store energy in internal rechargeable batteries. You can charge the batteries during the day, and then transfer the energy to recharge your electronic devices at night. Most solar chargers are weatherproof, lightweight and pocket-sized, and can even work in low-to-moderate light conditions. These chargers power devices at the same rate as if they were plugged into a wall electrical outlet.