Last year Xiaomi introduced a 100W fast charging system that would let you plug in a smartphone with a 4,000 mAh battery and take it from 0 to 100 percent capacity in just 17 minutes.

Now the company is showing off an 80W fast charging system that can do the same thing in 19 minutes… but this time without wires.

Xiaomi says you can drop a phone on a charging cradle and get a 50-percent charge in 8 minutes. Or if the phone is entirely dead and you just need enough juice to make a quick phone call, you can get a 10-percent charge in just one minute.

There’s no word on when you’ll be able to buy a phone with this technology. But we’re now at a point where there’s little difference in charging speed between the top wired and wireless chargers.

I’m still not a huge fan of wireless charging because it’s less efficient, which means that you’re wasting a little more energy every time you place your phone, watch, or other gadget on a charging cradle or stand than you would if you just plugged it in. But the difference for most smartphone users will probably add up to pennies a year.

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  1. Wireless charging is convenient if you have a large charging pad where you can put your phone anywhere on it. Although, I had a smallish circular pad and I had to make sure my phone is lined up properly which made it just as cumbersome as plugging in a cable.

    Also, it made my phone and thus the battery much hotter while charging it slower. That extra heat definitely doesn’t help the life span of the battery.

  2. I dislike worked charging because as you say, it’s less efficient, plus it’s worse for your battery.

    Still, I actually have to say I never want to go back to a phone without wireless charging. I still prefer a wired solution but earlier this year I dropped my phone and the USB C port basically died (leaving it connected to a quick charge charger for over an hour only garnered me less than five percent battery.

    If my phone didn’t have wireless charging I would have had to send it in for repairs (hard to do in the middle of the pandemic, even more so as it’s imported) and I really couldn’t be without my phone. I could have also opted for buying a new one but I don’t like to rush large purchases.

    But I need my phone for work which would have meant looking for an interim solution.

    Wireless charging spared me all that. It’s still not super convenient (it’s harder to use your phone while charging wirelessly than while wired and it spend like half the day on the charging dock but I can still work and it’s given me the chance to look into getting a new one without rushing it.

    1. Agree, the best thing about wireless charging is reduced wear on the charge port which is significant with people tripping over cables etc.

      1. Must totally fry the battery though. I’d love to see how it the Pepsi challenge done on two of these phones, one solely charged at 80w wirelessly and the other by cable and see how both fair after 6 months.

        1. Not really sure where you’re getting this idea from. Watt for Watt, and at the same charge temps, wireless is no more detrimental to a battery then wired is. It is certainly a waste of energy when it comes to efficiency though.

          1. More heat perhaps on the battery.

            Is there a standard which rates the efficiency level of wireless chargers? I have a faint impression of 65% efficiency, with 35% being lost to… heat? radiation? If so, it’s hard to imagine wireless charging being legal in the EU for example.