We picked up this guy, and immediately fell in love with the quality and the multiple functions of this gadget charger. The flashlight on the front features 3 super high power LED lights, easily producing at least 50 Lumen.
The onboard AM/FM radio is LOUD, and it maintains a high fidelity.
Crank your phone back to life! It will charge all the major phone types, at a rate of about 1.5 % increase in battery life per minute.
We've had people reporting some issues charging the iPhone 5, cranking at the right speed seems to be finicky to get the right voltage.
And it has a fun alert siren function, great for keeping kids busy!
Very compact and perfect for emergencies the CB-50 Hand Crank USB Phone Charger, AM/FM radio, & Flashlight
Hand Crank USB Phone Charger, AM/FM radio, & Flashlight
Using hand-powered generators is pretty simple our CB-50 with built-in hand-powered generator can be commonly used on camping trips and includes a radio and a light that can be used for signaling if you need help and a radio for weather. You don't have to worry about connecting the generator to anything because it all works internally.
Hand crank generators date back at least to the 1960s. Military units used special hand generators that could fold up into a backpack. With a soldier turning the crank, the generator could be used to power electronic equipment while in the field, far from any available power source.
Mechanics of Hand-powered Generators
The mechanics of hand-powered generators are not too complicated. They work like other generators, except the initial energy is provided by your arm rather than from steam by burning coal or a flowing river. A generator is basically an electric motor working in reverse. Both are based on principles of magnetism discovered by physicist Michael Faraday.
Faraday discovered in 1831 that passing a conductive wire through a magnetic field produced an electric current in the wire. By spinning a coil of wire around a magnet, he found that he could create a steady current. Thus, he could convert energy used to spin the coil into electrical energy. When you turn the crank on the side of the generator, the coils move around the magnet and generate current.
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