66W rechargeable battery, actually less than 40W, what is this? My personal understanding is: first, the actual charging power, can not reach the maximum power; Second, Mate 40 pro mobile phone has just been released, system upgrade optimization (including battery management) is a process, and there should be a better charging speed in the later period, which is also found in my previous tests
In terms of fast charge, Huawei has always had its own insistence, and the new 66W fast charge will continue to use charge pump technology, which can output up to 11V and 6A power. With fast charging speed, heating and battery capacity, life and other comprehensive considerations, will not blindly pursue high power. So it is safe and can be used with confidence
Safety, manufacturers of genuine products have quality assurance.