The k40 fast charge does not need to be opened manually, as long as the 15w charger and data cable can be used to achieve fast charging.
1. First of all, open the Redmi mobile phone Settings, click [power saving and battery] to enter.
2. Then, click [Fast Charge Acceleration] inside the battery to enter.
3. Finally, turn on the [default fast charge acceleration] function to turn on fast charge. I hope my answer can help you
Under normal circumstances, the red rice K40 this mobile phone can only support the maximum 33 watts of mobile phone charging this mobile phone does not need to manually set the mobile phone fast charge, you only need to use the hand official original mobile phone charger, and then you can reach 33 watts of mobile phone fast charging speed to charge, use. You don't have to open it yourself.
k40 fast charge does not need to be opened manually, as long as the original charger and data cable can be used to achieve fast charging.
The Redmi K40 is equipped with a 4520mAh battery that supports 33W wired fast charge and does not support wireless charging.
This charging rate is barely passed compared with other friends, but it can also well meet the user's moderate use.
This is only the standard version of the K40 series, and the large cup will support faster speed flash charging.
No need to open, the original 33W charger charging, about 45-50 minutes full.
K40 fast charge is mainly the original charger can be inserted.