Android 16 could bring a color-coded battery icon that would make it easier to know when to charge your phone.

Instead of having a white background at all times, the new battery level icon we spotted in Android 16 has a vivid green background when the device is charging and a red background when it’s low ...

You can, at least, extend runtime using options like Android ... your battery drains when not optimized. Eventually, your phone will utilize this data to fine-tune how it expends a full battery.