Revoking certain app permissions significantly improved a phone's battery life. This change led to nearly doubling the device's usage time per charge.
Battery Optimization Strategies
Reducing background activity proved effective: many apps needlessly sync data and drain power. By restricting this feature for non-essential apps through app settings, unnecessary wake-ups decreased.
Adjustments to location services also helped. Switching from precise, always-on location to approximate access for most apps reduced GPS, Bluetooth, and sensor usage. Precise location was kept only for necessary applications like maps.
Lastly, Bluetooth and nearby-device scanning permissions were restricted. Even inactive Bluetooth can drain battery if apps are allowed to scan for devices. Limiting this feature to essential apps flattened battery usage trends.
Performance Metrics
Prior to these changes, the phone lost around 15% overnight and struggled to last a day. Post-adjustments, overnight battery drain dropped to about 5% and overall battery life extended to a day and a half, reducing the need for midday charging.
Core functions such as notifications and Wi-Fi remained enabled, ensuring device stability and functionality without compromising performance. Camera and microphone permissions were selectively managed.
Conclusion and Recommendations
Assessing and managing app permissions can greatly enhance a device's battery efficiency. Users should evaluate what apps can access to mitigate unnecessary battery consumption before assuming hardware upgrades are necessary.



