Today Xiaomi Mi CC9 Pro announced the characteristics of charging life: 5260mAh large battery + 30W speed flash charging.
Xiaomi said that the Xiaomi Mi CC9 Pro is equipped with a 30W flash charging. This is the first time that Xiaomi has adopted a new charging architecture. Although the power does not seem to be large, it can be filled with a large battery of 5260mAh in 65 minutes.
We know that any mobile phone can’t consistently complete the entire charging process with the peak power of the charging head. In the normal state of normal temperature, the initial stage of charging can be fully inputted with high efficiency, but as time advances, power will drop, eventually entering the constant voltage charging phase, and the current will drop to a very low trickle charge level.
Simply put, mobile phone charging is similar to long-distance running. In the beginning, I was full of energy, started at full speed, and relaxed halfway through the speed of 100 meters. In the latter part of the physical strength began to have problems, the speed gradually declined, and rushed through the endpoint in the jogging state.
In order to extend the high-power charging time, the Xiaomi Mi CC9 Pro has the latest and most efficient charging Charger-BQ25970 in the “plug-in” industry. The ultra-high conversion rate of 97% greatly reduces heat loss and can maintain a longer current output.
On the other hand, the Xiaomi Mi CC9 Pro joins Battery Sense, which increases the detection loop in the battery’s internal cells and directly detects the real-time voltage of the battery’s internal cells. The reason for this is that the fast charge strategy has a direct relationship with the cell voltage. By adding Battery Sense, the true voltage of the cell can be measured most accurately and directly, and the error caused by the impedance of the battery protection circuit can be avoided, and the current can be high. Power input is longer, which is more energy.
In summary, the Xiaomi Mi CC9 Pro can be used to charge the battery with a 6A high current for nearly 15 minutes, and the firepower is fully extended.