Have trouble keeping your smartphone charged? A new eco-friendly battery that juices up your phone on the go could be the answer, said John Brownlee at Fast Company. The Mini Power comes in the form of tiny cardboard capsules containing small batteries that break off from a perforated sheet, allowing users to choose how much battery time they need. Disposable smartphone batteries "tend to be environmentally unfriendly," thanks to their plastic casings, but Mini Powers "eschew the plastic" for biodegradable cardboard.
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