The Xiaomi Mi 10 Ultra is the first smartphone equipped with Qualcomm’s insanely fast charging. Qualcomm has confirmed that the device supports its 100W+ Quick Charge 5 tech. The information was confirmed via Twitter.
The Xiaomi Mi 10 Ultra is the world’s first handset which supports Qualcomm’s new, insanely fast charging
Qualcomm had announced Quick Charge 5 last month, and Xiaomi has the honor to be the first to feature such tech. This technology supports charging speeds of over 100W, and the Mi 10 Ultra goes up to 120W.
The Quick Charge 5’s charging protocol is based on the existing USB Power Deliver Programmable Power Supply (USB PD-PPS), and Qualcomm’s new SMB1396 and SMB1398 PMICs support 2S battery systems.
This basically allows for doubling the voltage while charging, for the same current. Therefore, the company manages to double the charging speed as well.
Just to give you an idea as to how fast this charging is. A smartphone with a 4,500mAh battery can reach a 50-percent charge, from 0-percent, in just five minutes.
Qualcomm also claims that this charging will not destroy the battery. The company says that this tech is using its new Battery Saver algorithm, and the new Qualcomm Smart Identification of Adapter Capabilities technology. Therefore it supports “unparalleled efficiency”.
Xiaomi claims that the Mi 10 Ultra can be charged from 0 to 100-percent in only 23 minutes. The company converts two high-voltage currents of 20V/3A, into two low-voltage currents of 10V/6A, and then converting that to 10V/12A. That is finally split among both 2,250mAh batteries which are connected in the phone.
The company says that its collaboration with Qualcomm enabled 98.5-percent conversion efficiency with this charging system.
Xiaomi went into even more detail on its official Weibo page
Xiaomi went into even more detail when it comes to this charging. It says that the Mi 10 Ultra’s “butterfly double string battery” design is contrasted against traditional side-by-side dual-cell battery designs, which allows for a larger battery capacity without taking up more volume.
These battery cells also have a “low internal resistance tab design”, claims the company. That will reduce the resistance and temperature by 36-percent, and 4.8°C, says Xiaomi.
The graphene material, which is included at the positive electrode, is considerably more conductive than traditional carbon materials. The thicker and lower impedance “dual FPC connection” between the battery and motherboard reduces energy loss and heat generation.
The “Battery Sense” voltage monitoring technology, on the other hand, detects the true voltage of the battery cell in order to avoid errors caused by the battery protection circuit.
To top it all off, Xiaomi said that the Mi 10 Ultra will lose only 10-percent of its total battery capacity over 800 full charge-discharge cycles.