I changed 12 Android phone settings to dramatically increase battery life (and why they work)
Briefly

The article discusses various ways to extend battery life on Android phones, sharing personal experiences along the way. Author Kerry Wan emphasizes that despite the advertised efficiency of settings like the always-on display, these features can drain more battery than expected. The article highlights 12 specific settings that can be modified for immediate improvements in battery life across different Android models, encouraging users to make these adjustments while noting that the process may vary between devices.
Turn off the always-on display, a major battery drainer on smartphones. Despite claims that it only uses 1-2% per hour, the reality is far worse.
There are 12 key settings on Android devices that can be adjusted to extend battery life significantly without sacrificing the quality of your smartphone experience.
Read at ZDNET
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