Rechargeable batteries were supposed to keep trash out of landfills. Instead they replaced old garbage with new. Consumers throw away billions of battery chargers every year; cellphone chargers alone account for almost 100,000 tons of trash annually. And as discarded chargers sit in landfills, they bleed toxins like mercury and lead. That cycle is about to end. Wireless charging will soon be compatible with many of today’s mobile devices, providing a universal, more eco-friendly way to power up.
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