Solar computer bag absorbs solar energy through the solar energy battery board and then turns solar energy into electric energy, which will be stored in the accumulator cell....

Solar bag absorbs solar energy through solar panel and then turns solar energy into electric energy, which will be stored in the storage battery. It can charge different....

Everyone knows electric torch ( flashlight) , you can use it when there is not electricity or when there is darkness, but what would you do when the batteries are used up. So why....