Xiaomi, more specifically its Redmi brand, has shown during the Mobile World Congress its new fast charging technology, which is capable of reaching 300W and therefore charge 100% of a smartphone with a 4,100 mAh battery in just 5 minutes. It is, so far, the fastest charge in the world, surpassing even Realme and its announced 240W.
The 300W of Xiaomi’s new fast charging technology has been tested on a modified Redmi Note 12 Pro+ with a 4100 mAh battery (the actual capacity of this smartphone is 5000 mAh), and the results have yielded the following figures. In less than a minute, the smartphone can reach 20% battery. 50%, in exactly 2 minutes and 12 seconds. 100% battery is completed in just 5 minutes. The 210W that Redmi presented a few months ago, on the other hand, reached the full charge of a higher capacity battery (4300 mAh) in 9 minutes.
Xiaomi also states that the battery materials have been slightly modified to allow this charging speed to be achieved without significantly affecting its useful life. For example, some areas where graphite was used have been replaced by carbon, allowing to reduce the thickness of the electrodes by 35%. The battery also has a higher charging power density, as well as thin materials on the cells that help dissipate heat.
Xiaomi, on the other hand, claims that up to 50 security-related functions have been added to control, among other parameters, the voltage, current, or temperature of the integrated charging chips.
Xiaomi surpasses Realme and its 240W charging
Xiaomi’s new 300W charging technology far exceeds what Realme has included in the Realme GT Neo 5 in China, and what it is going to include in the Realme GT 3 that they will announce during the Mobile World Congress in 2023. Realme’s, specifically, is capable of reaching 20% in 80 seconds; 50%, in 4 minutes; and full charge takes about 10 minutes on a 4,600 mAh battery.
We must take into account, yes, that the Xiaomi charge is not yet marketed, while the Realme charge is. The battery of the Realme model, in addition, is somewhat larger than that of the Redmi Note 12 Pro that Xiaomi has used in its demonstration. In any case, the announcement of this type of news in terms of loading speed is always very good news, we just have to wait for it to hit the market.