Home / Technology / Xiaomi’s 200 W phone charger goes from 0-100% in 8 minutes

Xiaomi’s 200 W phone charger goes from 0-100% in 8 minutes



Xiaomi's charging demonstration.  There is a wattmeter to the left.
Enlarge / Xiaomi’s charging demonstration. There is a wattmeter on the left.

Xiaomi

Xiaomi has just unveiled a new high-end brand for charging smartphones: a 200 W charging system. The company demos “Xiaomi HyperCharge”

; in a new Twitter video this weekend, saying that the new technology can rocket a phone from empty to full in eight minutes. It’s about as long as a trip to the gas station.

These fast charging systems do not provide a continuous charging speed, but Xiaomi was nice enough to connect the new charger to a power consumer monitor so we can see what happens. The phone is charged to 10 percent in just 44 seconds, and then quickly ramps up to 200 W. The phone achieves 50 percent charge in a ridiculous three minutes. Then the phone slowly ramps down the power, drops to 150 W and turns 75 percent charge in five and a half minutes. Finally, the system ramps down to 40 W on its way to full charge in eight minutes.

Behaviors like this – carefully recharging the battery during the last part of the charging cycle – are meant to protect the life of the battery, and this is part of the reason why there is no evidence that fast charging degrades the battery faster than normal charging.

Xiaomi is not the only company pushing for faster charging speeds. Qualcomm announced 100W charging technology last year (but for some reason the reception of this feature has been very poor), and Oppo is up to 125 W. Xiaomi’s best commercial phones hit 120 W. All these systems use proprietary chargers right now, but with USB-C which recently added support for 240 W power supply, maybe we can all agree on a standard? Please?

Xiaomi’s 200 W charging demo used a “custom” Mi 11 Pro. There is no word on the commercialization of 200 W charging yet, but Xiaomi’s 120 W charging came to a commercial phone the same year it was demoed.




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