Brother unveiled its all-new battery technology that is powered by vibration. The new batteries will come with a small generator of the same size, which is used to generate power. The battery and the small generator are connected via a thin wire.
Available in AA and AAA sizes, you can find an electromagnetic induction generator and an electric double layer capacitor with a capacitance of about 500mF inside these batteries. No words yet on when will Brother bring this new kind of battery to consumers.