If you have been paying attention to the Chinese mobile phone market in the past few years, you will notice the rapid development of fast charging technology, and it feels like a new fast-charging champion will appear every few months. This month, the upcoming Mi 11T Pro will support 120W fast charging. Xiaomi has not revealed the charging time of the 11T Pro. However, the Mi 10 Ultra, which was only sold in China last year, also supports 120W fast charging. It only takes 23 minutes to fully charge
A common reaction from users to such fast charging technologies is that they will definitely have a negative impact on battery life, or there must be safety issues or both. In response, The Verge interviewed Xiaomi’s head of international communications and global spokesperson Daniel Desjarlais (Daniel Desjarlais) to talk about the company’s efforts in fast charging technology and what people outside of China should have about 11T Pro expect.
First, how does it work? “It’s like having two different inlets to refuel your car, and two separate fuel tanks,” Daniel said of Xiaomi’s dual-cell battery design, which works in contrast to other high-power fast-charging solutions. similar.
Regarding the issue of life, Daniel said that you can expect the same life as other more traditional mobile phone batteries. He said: “This is something we really, really do a lot of testing. Generally speaking, for the kind of battery we tested A battery with a charge level, after 800 charging cycles, still has 80% of the battery capacity. Some people may think that it loses a lot of 20%, but this is basically the standard for all charging technologies. 800 cycles, for most people, It’s about two years. So it’s very reliable.”
As a comparison, Apple claims that the iPhone’s lithium-ion battery “can maintain 80% of its original capacity during 500 complete charging cycles.” If Xiaomi’s test data is accurate, its battery life should be in line with normal performance.
When asked whether using a slower charger would further improve battery health, Daniel said: “There is a relatively small difference between the two. Of course, the best case is that if you want to charge overnight, use the slower Chargers, and use fast chargers in more hurried situations.”
As for safety issues, Daniel said that the test has been very thorough, including third parties, and the device itself contains 34 different battery protection functions. “Generally speaking, this is part of the reason why this technology is now being introduced to the global market,” he said. “We want to make sure that we comply with all regulations, but we also want to make sure that it is extremely safe for everyone.”
However, is there really no harm in such a charging system? For example, can mobile phones that use more traditional charging methods be thinner or can accommodate larger batteries? According to Daniel, there are no negative effects. However, the actual charger is larger than the average.
Xiaomi believes that its fast charging technology will continue to exist, and there may still be room for improvement. For example, earlier this year, the company demonstrated a 200W fast-charging prototype system that was filled with a 4000mAh battery in 8 minutes. To this Daniel only said, “Whether this (in commercial products) appears, you will have to wait and see,” on the grounds that further safety and performance tests are needed. His answer to Xiaomi’s air-to-air charging technology is roughly the same, he said: “This is a wonderful concept, and this is something we are continuing to study.”
For fast charging, the question is whether users in the global market of Xiaomi will regard it as a big selling point. Daniel said, “Maybe some people think that fast charging is irrelevant, but there are also many people who think it is a great added value. You won’t really realize how good it is for your daily life until you have to rush out to catch a taxi within 5 minutes and your phone’s battery is about to run out.” The international conference of Xiaomi 11T Pro and 11T series will be held on September 15.