TECH - Green products powered by self generated energy

a green battery pack that is run by solar energy as well as kinetic energy. All you need to do is to place the charged out battery pack in sun for a certain period of time on sunny days and the battery will juice up within no time. But in cloudy days it draws the charge from your movements, thereby converting kinetic energy into electrical energy and gets charged up again Wrist grip charging, exercise to reinstate life into your gadget
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