Sidewinder Cell Phone Charger: Provides Unlimited Emergency Cell Phone Power
By Arie on May 28, 2007 in Cellphones
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The Sidewinder Cell Phone Charger has a similar function with Brookstone Quick Charge , even you will get more advantages, because there is no battery required to run it and can provide power without limit.
The Sidewinder is an ideal emergency standby power source, especially for those who want to have the lowest tech solution to powering their cell phones. The weighs is just only 2.5 ounces and comes with a Nokia main cable and 4 adaptor tips. It works with different types of phones (Samsung, Motorola, Audiovox, Nokia, Sony/Ericsson, and Kyocera).
How it works:
Turning the crank handle at a speed of about two revolutions per secondwith two minute charge gives you more than six minutes of talk time and even more standby time. Keep charging and talk indefinitely. The SideWindergenerates power that is used to recharge your cell-phone battery.
You don’t need to turn at exactly two revolutions per second. Somewhat faster or slower is perfectly fine - the unit is voltage regulated to keep the voltage reasonably stable even if the generator speed varies.
At 1.5 revs per second, the unit was giving out about 5V of power, and at 2 revs per second, it was giving out close to its full rated 6.2V. Turning the handle faster did not create any appreciable increase in voltage. Most regular chargers tend to provide between 4.5V-6V, so this output voltage is completely satisfactory.
The output voltage was also safely steady and did not have any dangerous transients or ‘noise’ apparent. Some other similar units have less control circuitry inside and can potentially damage or even destroy your cell phone.
The unit delivers up to 330 mA when being cranked at two turns per second. Not all of this current flows into your battery though, and current output is closely proportional to cranking speed.
Most regular chargers are rated at between 450-800 mA, so the Sidewinder would seem to be capable of delivering at least half the rate of charge of a regular charger.
Product Package ($22.46)
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