Solar
Solar is by far the easiest to use, as you simply leave it in sunlight and it will charge. Handheld solar chargers work by converting sunlight into electricity and storing it inside of a battery that is embedded in the gadget. This battery then charges whatever gadget you connect. This is necessary to prevent over-charging or drainage due to changes
in sunlight.
There are a number of different handheld solar gadget chargers, with the most popular being the Solio charger. Available in different sizes and with numerous different tips, these solar chargers will be sufficient for charging just about any gadget you have.
The downside to solar is that it only works efficiently when the sun is out. It may take a couple days to fully charge a gadget, and the battery will eventually lose its ability to hold a charge. If you find yourself in an emergency situation where you need to use a GPS or cell phone immediately, solar chargers won't work. The solution is....
Hand Crank Chargers
A hand crank charger is most commonly seen on LED flashlights, which you crank for five minutes and then use for thirty minutes. This isn't ideal for constant charging, as you will be exhausting yourself when your energy could be better spent elsewhere. With that said, you can either purchase or make a hand crank charger to charge your cell phone or other gadgets immediately, or when the sun is not adequately available. Be sure that your hand crank has the correct voltage and amperage for your gadget, as you may not be able to charge it, or you may risk giving it too much power and frying it.
Published by Blair Mathis
Blair is a fulltime freelance writer who specializes in travel and technology writing. Having worked for both private and corporate clients, Blair has experience working to meet a wide range of requirements... View profile
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