Xiaomi shows off 80W wireless charging that can fill a battery in 19 minutes

midian182

Posts: 6,167   +51
Staff member
Something to look forward to: Xiaomi has long been one of the frontrunners when it comes to fast charging technology, and its new solution sounds quite spectacular: an 80W wireless charger. The Chinese giant claims it can juice a 4,000mAh battery up to 50 percent in just over eight minutes, while reaching 100 percent takes only 19 minutes.

Xiaomi already has an impressive resume when it comes to fast charging; the Mi 10 Ultra supports 120W wired fast charging along with 50W wireless fast charging, the latter of which can fully juice a 4,500mAh battery in 40 minutes.

Xiaomi’s latest innovation cuts its 50W wireless charging time by around half, and just a single minute of charging will fill a 4,000mAh battery to 10 percent. The company has shown this in action (top) using a modified Mi 10 Pro.

Xiaomi is increasing its wireless fast charging speeds at a rapid pace, having announced what it claimed was the world’s first 30W charging solution just last year in the Xiaomi Mi 9 Pro 5G.

The problem with such high-speed charging options, of course, is the concern over how they can affect the battery, potentially reducing its number of recharge cycles and maximum capacity. As noted by Android Authority, Oppo admitted that its 125W Flash Charge causes a battery capacity to fall to 80 percent after 800 full charge and discharge cycles.

No word on when we might see a Xiaomi phone supporting 80W wireless charging, but it could debut in next year’s Mi 11 series.

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VitalyT

Posts: 5,186   +4,307
TechSpot Elite
I guess it is ok, if you don't care about your electrical bills. This thing must be leaking a lot of electricity into nothing, due to low efficiency of the wireless charging.

A connected charger of 80W wouldn't even be able to charge a phone, it would set any phone battery on fire right away. That gives you an idea of how much electricity actually reach your phone's battery, like around 25%, as the result is comparable to a connected 20W charger.

b.t.w., I have a wireless charger, but after a while I stopped using it, because having to check every time that it is indeed charging, eventually started to bother me, and I went back to wired charging.
 
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hahahanoobs

Posts: 3,077   +1,231
I guess it is ok, if you don't care about your electrical bills. This thing must be leaking a lot of electricity into nothing, due to low efficiency of the wireless charging.

A connected charger of 80W wouldn't even be able to charge a phone, it would set any phone battery on fire right away. That gives you an idea of how much electricity actually reach your phone's battery, like less than 25%, as the result is comparable to a connected 20W charger.

b.t.w., I have a wireless charger, but after a while I stopped using it, because having to check every time that it is indeed charging, eventually started to bother me, and I went back to wired charging.
If Xiaomi's charger is as bad as you say, the charger you got must have been absolute dog doo doo. Maybe do better research next time.

I'd also like to see your real world data on all these ineficient and destructive wireless chargers everyone hates but manufacturers keep making. Thanks.
 
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lipe123

Posts: 942   +515
I guess it is ok, if you don't care about your electrical bills. This thing must be leaking a lot of electricity into nothing, due to low efficiency of the wireless charging.

A connected charger of 80W wouldn't even be able to charge a phone, it would set any phone battery on fire right away. That gives you an idea of how much electricity actually reach your phone's battery, like around 25%, as the result is comparable to a connected 20W charger.

b.t.w., I have a wireless charger, but after a while I stopped using it, because having to check every time that it is indeed charging, eventually started to bother me, and I went back to wired charging.
Bro.. uhm lets get real here for a second, a few years ago the smallest lightbulb was 60w and easily went to 120-200W if you wanted something bright, most of that energy was lost as heat.

Here you are going on about electricity bills for something that only runs for 20-30 minutes with 80-90% efficiency! I doubt it even works out to one cent for charging your phone.
smh.
electricity doesn't "leak" into nothing either! its a transformer and the only place it CAN go is into the coil on the phone's back.

You make fake news blush !
 

franticfrosty

Posts: 79   +84
Bro.. uhm lets get real here for a second, a few years ago the smallest lightbulb was 60w and easily went to 120-200W if you wanted something bright, most of that energy was lost as heat.

Here you are going on about electricity bills for something that only runs for 20-30 minutes with 80-90% efficiency! I doubt it even works out to one cent for charging your phone.
smh.
electricity doesn't "leak" into nothing either! its a transformer and the only place it CAN go is into the coil on the phone's back.

You make fake news blush !
I think he took the "wireless charging" quite literally as wireless charging, Where as its not exactly wireless, its still gotta make contact with something.

If batteries were replaceable easily and they cost like $50 I'd say we wouldn't care if it died after 600 charge cycles, as long as we got that fast af charge time like ohhh snap I forgot to charge my phone last night lets charge it for 5 min boom 50%. We'd be happy af if we could take back off snap it out replace as we really love fast charging tbh
 

p51d007

Posts: 2,562   +1,840
I'd be more concerned about running that much energy into the cells of a battery, and, if ONE of the cells impedance is just a fraction off, it would overcharge. Yeah, there are thermal fuses in case they get to hot, but I've seen them fail as well. Then BOOM!