Brother Industry LTD released a new battery concept that can be charged via a manual vibration. The battery is actually a mini sized generator that could convert movement into a power (kinetic) and then it can charge other battery through a thin wire.
Brother’s Vibration-Powered Batteries is available in both AA and AAA size, where inside of the battery you can find a mini electromagnetic induction generator and an electric double layer capacitor with capacitance of 500mF.
I guess the generator is capable of recharge batteries’ from Brother Industry that has the insertion for the thin wire. Unless they can find ways to recharging other branded battery, people pay double on the mini generator and compatible rechargeable battery.