Xiaomi's Hyper Charge can charge a phone in 8 minutes

Xiaomi recently demoed a high-wattage "hyper charge" that used a 200 watt wired charger to refill a 4000mAh battery in under ten minutes. The setup used a new prototype gallium-nitride based charger, and a graphene enhanced battery, so don't expect to see this tech in smartphones for a little while.

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