40%
Lower brightness. Less drain.
Bring higher manual brightness down to 40%.
Your screen needn’t stay so bright.
Auto brightness and lower levels stay unchanged
A small tool, made for Android
Save battery.
Start simple.
Dim the screen. Let it rest sooner.
Small settings for everyday battery life.
- Pay once
- No ads
- No subscriptions
A softer screenManual brightness: 40%
Let your screen rest30-second screen timeout
Simple settings. Just enough.
No root neededNo forced app closuresYou choose what changesSimple battery savings
Small changes.
Smarter battery use.
Everyday screen settings,
in one clear, controlled adjustment.
30sec
Put it down. Let the screen rest.
Shorten longer screen timeouts to 30 seconds.
Less time with an idle screen left on.
Timeouts of 30 seconds or less stay unchanged
Changed your mind? Restore your settings.
See every change and keep your original settings saved. Restore your previous brightness and screen timeout with one tap.
Allow “Modify system settings” before your first adjustment. Battery savings vary by device and usage.
An easier everyday view
Your battery.
At a glance.
No complicated menus. No distractions.
Battery, settings, reminders. Just three screens.
Unavailable device readings are clearly marked.
A notification at your target. Charging does not stop automatically.
Review your changes, then decide what to keep.
Current app UI (Chinese) · Battery readings shown for demonstration
Before you get started
A few answers,
before you start.
A small tool, with clear expectations.
Support & feedback:
[email protected]
Do I need root or a complicated setup?
No root is needed. Follow the app’s instructions to allow “Modify system settings” the first time, then choose the settings you want to adjust. For charging reminders, allow notifications and enable reminders in the app.
Does it close other apps or stop charging?
No. Optimization only changes the brightness and screen timeout you select. Charging reminders send a notification when your target is reached. You decide when to unplug.
Why haven’t I received a charging reminder?
Check that notifications and the “Charging reminders” notification category are enabled. The reminder screen has a link to notification settings. A persistent notification appears while monitoring is active. Open the app once after restarting your phone to resume monitoring. Some devices may also restrict background activity.
Can I restore my original settings?
Yes. The app saves the brightness and timeout from before your first adjustment. Use Restore on the optimization screen. Restore before clearing app data or uninstalling, so you don’t lose your saved settings.
Which phones are supported? Do I need an account?
Android 7.0 and later. No account is needed. Readings such as temperature and current depend on what your device provides. Battery Assistant currently focuses on Android.
Battery Assistant
Less fuss.
More peace of mind.
A lovely interface. A few useful tools. Simple as that.
Google Play · Coming soon
Android 7.0+ · Pay once
No ads. No subscriptions.