Over the past few years, there has been a rapid development of mobile phone charging tech. A few years ago, we only had 27W fast charging max. However, by 2020, the charging power of mobile phones jumped to 65W. As of 2021, we already have 125W fast charging which slowly increased to 200W – 210W. Now, the industry is trying to take a huge leap to 300W super fast charging. Redmi unveiled a modified Redmi Note 12 Pro+ a month ago. This device is able to handle a 300W fairy second charge and could be fully charged in only 5 minutes. According to recent reports, a mass-produced model could be launched in the second part of the year. However, Redmi is not alone in the development of fast-charging tech.
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Oppo 300W fast charging tech
Another Chinese brand, Oppo, is also working on similar tech. There are reports that Oppo has also developed equivalent technologies and that the 300W level of rapid charging has no limits in terms of brand. A new report from @DCS, a popular Weibo tech blogger reveals that the Oga system has special 2220 / 2230 mAh 15C system high-rate batteries. The equivalent capacity should be 4600 mAh and this should be ready for 300W-level rapid charging.
Nevertheless, using a high-rate battery alone will not enable 300W high-power rapid charging. The entire link, such as chargers, mobile phones or devices, and charging designs, needs optimization and improvement. In order to further minimize volume, the 300W charging chip design must use the most recent GaN (gallium nitride) tech. Without this, it will be difficult to control the volume of the charging head and the mobile phone. The 300W battery capacity is still smaller than the more known 100W fast charging + 5000 mAh battery, and the battery life will be somewhat lower. But the charging time is way shorter, therefore there are trade-offs to be made.