Design unique and novel mechanical power generation twisted battery
The rechargeable battery requires a charger to store energy. Without a charger, the rechargeable battery is basically a waste. And this design allows the battery itself to be powered, no need for a charger, which is obviously a lot easier.
Recharging the battery can be done by twisting the battery to convert the mechanical energy into electrical energy without the need for a charger or a new battery.
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