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---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- In the past two years, various fast charging technologies have emerged, and the charging power of mobile phones has reached 120W. The charging power of the mobile phone is limited by factors such as battery and fast charging protocol. The charging power of the USB-C port was only 100W, and the magic modification protocol of mobile phone manufacturers such as Xiaomi , vivo reached 120W. On May 25th, USB-IF just announced that the USB-C 2.1 revision will increase the interface power to 240W.
USB-IF also puts forward new requirements for charging devices. All EPR cables should be clearly identified as EPR cable identification items, and they need to support 5A 50V current and voltage. Therefore, charging device manufacturers must change their product designs to meet the latest requirements.
Xiao Lei believes that the 240W charging power of USB-Ch should be the first to be used on laptops. Today's gaming laptops have extremely high power requirements. Take Lenovo Saver R7000P as an example. The previous generation R7 4800H+RTX 2060 power adapter has reached 230W, and this generation R7 5800H+RTX 3060 power adapter has a power of up to 300W.
Since the USB-C port previously only supported the 100W PD protocol, many gaming laptops are compatible with this protocol and also have to be equipped with independent power supply interfaces, which undoubtedly increases the cost. Of course, for high-end full-blood gaming laptops, 240W is still not enough, but for mid-range gaming laptops and non-full-blood RTX 30 gaming laptops, the USB-C port is completely enough.
For mobile phone manufacturers, this is also good news that can save costs. There is no need to modify the interface protocol anymore. You only need to work hard on the battery to continue to upgrade the charging power.
In recent years, the mobile phone industry has been too fierce in terms of charging power. In 2011, Samsung released the world's first mobile phone Galaxy Note that supports 5W charging, and in 2019, OPPO released the world's first mobile phone Reno Ace that supports 65W charging, which took 8 years in the middle. However, it only took more than a year to upgrade from 65W to 120W.
Now, mobile phone manufacturers still have not stopped competing in charging. At the beginning of this year, there was a leak that Xiaomi is testing the 120W-180W fast charging technology and is expected to see results by the end of this year. Although some consumers believe that fast charging is of little significance, and 30 minutes of filling is enough, how many people can refuse the temptation to fill the battery for 15 minutes, 10 minutes, or even 5 minutes.
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