1. Use one plus diagnostic application. Search, download and install diagnostic applications in the App Store. After installation, open the application and view the battery loss status and other related diagnostic status information on the home page.
2. Use the engineering test mode. Open the dialing page of mobile phone, enter 4636 to enter the engineering test mode of Android, and directly view battery information, mobile phone information, usage statistics, WLAN information, etc. On the mobile phone, it includes information such as power level, power technology, battery status, battery temperature, battery voltage, etc.