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Batteries That Recharge When Shaken Unveiled by Brother Industries

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Brother Industries Ltd recently developed a small generator that allows you to recharge it simply by shaking it. According to the company, the “vibration-powered generating battery” can replace AA and AAA batteries for devices like remote control or flashlights, that have an energy consumption of about 100 mW.

Due to its reduced dimensions, the new gadget is designed to fit inside a battery-shaped case. Beside the generator situated inside the case, there is also a capacitor that has a capacitance of about 500 mF. Brother Industries has created two different prototypes. At the first one, the capacitor and generator are fit into a single battery-size case and at the second prototype the capacitor and generator each have their own battery-size case. This way, the capacitor’s voltage is greater.

To recharge the unit, the entire device containing it (such as a flashlight or remote control) can be shaken. The company said it could cut down on the amount of batteries used in electronics that don’t use so much power. “The new generator will semi-permanently eliminate the need to replace batteries and contribute to reducing the amount of wastes,” Brother Industries said.

The vibration-powered generating battery will be displayed for the first time at the Techno-Frontier 2010 exhibition later this week . The demonstration will include using the generator in a remote control for lighting equipment, an LED flashlight and a TV remote control.

[Source: Physorg]

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