Enter the phone settings, click on the battery, and check the battery health (beta) and battery consumption. Among them, the battery health can view the maximum capacity and peak performance capacity; Battery consumption: You can check the percentage of power consumption of various applications you have used in the past 24 hours and the past 7 days.
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Apple's mobile phone itself does not have the function of checking battery life and battery cycle times. You can view it with the help of "battery life", and the app store searches for "battery life" to download and install it.
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Open "Battery Life" and click "Raw Data" to view the battery charge, battery capacity and battery voltage.
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Click "Available Time" to view the available time of 3G call, Internet access, 4G call, Internet access, wifi access, video playback, standby time, etc.
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Click "Loss Level" to view the battery loss, which is displayed as a percentage.
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Click "History" and "Chart" to view past battery test results.