No, not battery vibrator. Brother Industries Ltd developed small vibration-powered generators that can replace AA and AAA batteries.
Think of a flashlight that can be shaken to generate power to keep the light on. Reminds me of those wind up flashlights.
The new generator will semi-permanently eliminate the need to replace batteries and contribute to reducing the amount of wastes," Brother Industries said.
The generator can be used for a device that does not always consume electricity and has small power consumption, such as a TV remote, or LED flashlight.