Xiaomi ha presentato il suo nuovo sistema di “iper ricarica” a 200 watt: lo smartphone arriva al 100% della carica in appena 8 minuti
Veronica Nicosia Giornalista scientifico
Laureata in astrofisica, giornalista scientifico e content editor SEO, scrive di tecnologia per magazine online e carta stampata. Nel 2020 approda a Libero Tecnologia
Passare da 0 a 100% di batteria in soli 8 minuti: sono questi i tempi che ha fatto segnare Xiaomi con la sua iper ricarica a 200W. The process, obtained through the connection between the charger connected to the power outlet and the smartphone via cable, has also shown a remarkable speed even declined in wireless mode.
To bring under the spotlight the speed of charging of the new system developed by Xiaomi was a video, published on the company’s Twitter profile. If for Xiaomi it is not the first time that it has recorded record charging times, it is not the only one to have demonstrated in recent years to know how to do with these technologies. In 2020 Oppo, another exponent of Chinese telephony, had shown off the ability to recharge a 4000mAh battery in 20 minutes using well 125W. A big step forward for the manufacturer that has implemented the proprietary protocol called VOOC, although it failed to break the milestone reached by Xiaomi that, already the previous year, had exceeded that level with an even faster methodology at “only” 100W.
Hypercharging at 200W, Xiaomi’s experiment
In the demonstration taken from the film, Xiaomi used a modified Mi 11 Pro smartphone, with 4000mAh accumulator. Using increased speed playback, the images show how in 8 minutes the device manages to reach full electricity availability with wired hypercharging, reaching instead the same percentage wirelessly at 120W in 15 minutes.
It is correct to note that fast charging systems, such as Xiaomi’s, use proprietary technologies, applied and operating exclusively through original chargers and cables made by the manufacturer. In addition, not all implementations of this type materialize in such a way as to be implemented on the devices actually on the market.
In fact, if two years ago Xiaomi had managed to achieve a charging system at 100W from 0 to 100% on a 4000mAh battery in 17 minutes, the technology has not been replicated – for example – on Mi 10 Ultra on sale since last year, which, stopped at 23 minutes at 120W (albeit with a larger accumulator that reaches 4500mAh).
200W and EPR charging, how standards change
While for a long time now it has been Power Delivery via USB that allows for full-bodied energy transfers, today the technical limit of available devices stops at 100W with most hovering around 65-75 Watts. With the introduction of ultra-fast charging systems, in addition to Xiaomi’s proprietary one, the rules of the game are changing, with tools and hardware able to support certain methodologies.
These powers will arrive, according to the USB-IF (the consortium that establishes the technical specifications of USB devices) with the Extended Power Range (EPR) standard at 240W. To support this protocol, the USB-IF has already announced the need for new cables and chargers, with specific requirements able to manage these levels and useful icons to identify them compared to the traditional ones currently in the stores, always with C type connector but 2.1.
The same is valid for smartphones and not only: to avoid possible damages, it is necessary that there is a compatibility on the whole line, device included. So here is the importance of clear and unmistakable indications and specific tools, in order to avoid later bad surprises from cutting-edge technologies, such as Xiaomi’s and EPR’s, that aim to improve the user experience.