Hello,
I have a question regarding the new battery usage interface in iOS 26. As shown in the attached screenshot, the system displays battery usage per app as a percentage (%).
I’m curious about how this percentage is calculated. From what I can tell, it doesn’t seem to reflect the actual battery consumption per process, excluding the device’s base standby power. It rather appears to be calculated as a relative percentage based on total battery drain, possibly including system idle power.
Is there any way to understand or estimate the actual battery usage per app, excluding the device’s inherent standby power consumption?
Thank you.