Hymini Wind Powered Charger

Hymini Wind Powered Charger

Recharge your gadgets with the new Hymini wind-powered charger

wind | shopping

A range of excellent Solar powered gadget chargers have come onto the market in the last few years including Freeloader, Solio, and PowerMonkey Explorer.

Hymini Hybrid Wind and Solar Charger

Hymini is a handheld device which uses wind power to generate electricity. A PV solar panel (available separately) can simply be plugged in to make this a hybrid system.


Generated electricity* is used to charge an internal 1200mA/h lithium ion polymer rechargeable battery. Mobile phones, mp3 players, digital cameras, and any other 5 Volt device can be recharged from this portable power bank.
* The Hymini can also be recharged from the mains electricity supply (via an adapter).

Hymini weighs just 100 grams and is 134 x 88 x 33mm in size.

Wind Power

As you can tell by looking at this photograph of this handheld device, the wind turbine is very small. From the calculation of wind power we know that the power output of a wind generator is proportional to the area swept by the rotor, and proportional to the cube of the wind speed.

Therefore, in order to generate any useful electricity with a wind turbine of this size, high wind speeds are essential. Internal battery charging starts when the wind speed reaches 5mph, but it is recommended that the Hymini is fitted to a bicycle, car, or even on the arm while jogging in order to increase the speed at which the air hits the turbine.

The maximum charging wind speed is 40mph - no extra power will be converted above that speed. Peak power output for the turbine is 1 Watt.


The manufacturers (MINIWIZ Sustainable Energy Dev. Ltd.) claim that if Hymini is mounted on a bicycle or jogger for one hour, enough electricity will be generated to provide 15 minutes of mobile phone talk time, or to take 50 digital photographs.

The Hymini internal battery can output 5 Volts DC at a current of 200-850mA. With a full internal battery, an iPod can be charged in one hour via the Hymini USB charging connection.

More Hymini Information

Click here to visit the official Hymini website (with very annoying background music!), and click here to read the 12 page Hymini Instruction Manual (PDF) online.

Note that the Hymini Warranty is valid for just 60 days.

Article Last Modified: 08:11, 13th Oct 2007

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