1. Take Huawei P40 as an example, click Ann Bunny to enter, as shown in the following figure:
2. After entering, click Function Test, as shown in the figure below:
3. Enter the function test and battery loss test, as shown in the following figure:
4. Enter the battery loss test interface and insert the mobile phone charger, which needs to be continuously charged for more than 10 minutes, as shown in the following figure:
5. After continuous charging for a period of time, unplug the charger, you can see the battery health, design capacity and expected capacity, and you can also see the capacity loss of the battery, as shown in the following figure: