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Xiaomi introduces 30W wireless fast charging (with 40W on the way)

Battery technology has’t advanced much in recent years, which means that if you want to make a smartphone with longer battery life you have a few options: stuff a huge battery inside, use energy-efficient components, or advise customers not to turn their phones on (you can get days of standby time this way!)

Or… you could just make it easy to charge a phone quickly. It’s easier to deal with a phone that doesn’t get all-day battery life if you can just plug it in or plop it on a charging pad for a few minutes at a time.

Companies have demonstrated fast charging technology that can top off a 4,000 mAh battery in as little as 13 minutes, using 120 watt fast charging. But what about wireless?…

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