Hand-crank charging battery----Creative products----Cool Products Network

This is an environmentally friendly rechargeable battery. When the battery runs out of power, just open the handle and turn it clockwise to charge the battery. Only continuous shaking for 20 minutes can restore the exhausted battery to full vitality. There is also a small light prompt below the battery handle. If the small light shows yellow, it means that the battery is not fully charged and needs to be charged.