Android's Adaptive Battery is smart, but it's playing it safe by default. By diving into Developer Options and hidden settings, you can enable finer app restrictions that squeeze 20-30% more battery life on heavy-use days—without sacrificing the apps you actually care about.
These aren't basic tips like "lower your brightness." These are power-user tweaks that most Android users don't know exist.
Enable Developer Options
First, you need to unlock Developer Options (don't worry—it's safe and doesn't void anything):
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Open Settings
Go to Settings > About Phone.
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Find Build Number
Scroll down and find "Build Number" (might be under "Software Information" on Samsung).
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Tap 7 Times
Tap "Build Number" 7 times rapidly. You'll see a countdown, then "You are now a developer!"
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Access Developer Options
Go back to Settings. Developer Options now appears (usually under System or at the bottom of Settings).
Hidden Battery Tweaks
1. Background Process Limit
In Developer Options, find "Background process limit" and set it to "At most 4 processes" instead of "Standard limit." This prevents apps from running unnecessary background processes.
💡 Pro Tip
If you notice apps behaving strangely or missing notifications, bump this back up to "Standard limit" and use per-app restrictions instead.
2. App Standby Buckets
Android categorizes apps into standby buckets based on usage. In Developer Options, find "Standby apps" to see and manually adjust these categories:
- Active: App currently in use (no restrictions)
- Working set: Frequently used apps (minimal restrictions)
- Frequent: Regularly used (some restrictions)
- Rare: Infrequently used (heavy restrictions)
- Restricted: Almost never used (maximum restrictions)
Manually move rarely-used apps to "Rare" or "Restricted" to save significant battery.
3. Disable Mobile Data Always Active
In Developer Options, disable "Mobile data always active." This prevents your phone from maintaining both Wi-Fi and cellular connections simultaneously. Small impact, but adds up.
Per-App Battery Optimization
Beyond Developer Options, dig into per-app battery settings:
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Find Battery Usage
Settings > Battery > Battery Usage. Identify your top battery-draining apps.
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Open App Info
Tap on a battery-hungry app, then tap the app name to open its settings.
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Configure Restrictions
Look for "Battery" or "Battery optimization." Set to "Optimized" or "Restricted" for apps that don't need to run in the background.
Apps to Restrict:
- Shopping apps (Amazon, eBay)
- Games you're not actively playing
- Social media apps you check manually
- News apps
- Fitness apps (when not working out)
Apps to NOT Restrict:
- Messaging apps you need instant notifications from
- Email if you need real-time delivery
- Calendar/reminder apps
- Security/authentication apps
- Smart home control apps
Animation Scale Trick
In Developer Options, find these three settings and set each to 0.5x:
- Window animation scale
- Transition animation scale
- Animator duration scale
This makes your phone feel faster (animations complete quicker) AND saves a tiny bit of battery by reducing GPU work. It's a perception and performance win.
⚠️ Careful With These Settings
Don't set animations to "off" completely—some apps behave poorly without animations. 0.5x is the sweet spot for most users.
Scheduled Battery Modes
Most Android phones (especially Samsung, Pixel) offer scheduled battery saver modes:
- Settings > Battery > Battery Saver > Set a schedule
- Enable "Based on routine" if available—the phone learns when you typically need battery saver
- Or set a percentage threshold (e.g., 30%) to auto-enable
Advanced: ADB Battery Tweaks
For the truly adventurous, you can use ADB commands from a computer to tweak battery behavior further. This requires USB debugging enabled and ADB installed on your PC/Mac.
Example: Force an app into restricted standby bucket:
adb shell am set-standby-bucket com.example.app restricted
This is beyond most users' needs, but it's available if you want maximum control.
Conclusion
These hidden tweaks give you fine-grained control over Android's battery management that most users never access. Start with the per-app restrictions and standby bucket adjustments—they provide the biggest impact with the least risk.
Combined with basic habits (adaptive brightness, Wi-Fi over cellular, dark mode on OLED screens), you can easily get 20-30% more screen time from your device.