Voltaic Systems VSY1001 Solar Backpack Voltaic Systems Says: The Voltaic solar backpack is a mobile solar power generator designed to charge virtually all handheld electronics. Voltaic bags also use 600D fabric made from recycled PET (soda pop bottles). Recycled PET fabric is lightweight, extremely durable, UV and water resistant. Most importantly, it uses significantly less energy to produce than nylon. …
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