If you think realme’s 240w charging solution that’s available in the GT Neo5 and the upcoming GT3, Redmi is pushing the boundaries further by demonstrating a 300w wired charging solution.
You read that right: 300w wired charging ON A SMARTPHONE.
Making it absurd beyond the charging speed is that Redmi claims that its 300w charging solution can fully top up a 4100mAh battery in just five minutes–or around two songs.
To demonstrate this crazy feat, Redmi shared a video, where they are using a modified Redmi Note 12 Discovery Edition–the one that has 210w charging–that uses a 4100mAh battery (instead of a 4300mAh cell) in a controlled environment. In the video, the modified Redmi Note 12 discovery managed to reach 50% in a little over two minutes, and 100% in around 5 minutes.
If you closely at the video, you’d notice that the charging speed does not really reach 300w–it peaks at around 290w for a few seconds (around the 60-65% battery mark) before dropping to around 65w as it reaches 100%. Realisitically, Xiaomi’s bleeding edge tech is 290w–300w is the theoretical value, and does not factor in the need to cap out for safety reasons.
We’re still wondering how Redmi managed to reach 290w via USB-C despite current USB-PD standards being limited to 240w, but Redmi mentions that it is using Double GaN technology for the power adapter that’s paired with “more than 50 safety mechanisms”. It remains to be seen if Redmi will actually release a device with 300w charging in the future–especially since 120w charging is already more than enough for mid-range to flagship phones.