Battery Bar for Android

Battery Bar draws a thin line across the top of your Android screen – above the status bar – that shows your battery level in real time. The color and length of the bar change as your battery drains, giving you an at-a-glance reading without opening any app or pulling down the notification shade.

The bar shows the full width of the screen at 100% and shrinks proportionally as the battery drains. Three color zones – green for good, yellow for warning, and red for critical – make the current level obvious at a distance.

Features

• Thin color bar above the Android status bar showing real-time battery level.
• Three configurable color zones – good, warning, and critical – each with its own custom color.
• Adjustable bar thickness: hairline, thin, medium, or thick.
• Adjustable opacity so the bar blends into any wallpaper or screen.
• Spoken low-battery warnings at up to four configurable percentage thresholds.
• Customizable warning message with the % placeholder replaced by the current battery level.
• Spoken announcement when the battery reaches 100% and charging is complete.
• Charging indicator: the bar pulses when plugged in, with distinct signals for standard, fast, and super-fast charging.
• Per-app exclusion list to hide the bar over specific apps.
• Home screen widget showing battery percentage and estimated time remaining or charging status.
• Starts automatically when the phone boots.

Pricing

Free. Battery Bar is free to download and use. No subscription, no in-app purchases, no ads.

Designed to stay out of the way

Battery Bar occupies only a few pixels at the very top of the screen. It never overlaps the status bar icons, never intercepts touches, and never shows a persistent notification. You can adjust its thickness from a fine hairline to a medium stripe, and dial the opacity down so it is barely visible on bright screens.

Spoken warnings

Battery Bar can read aloud a spoken warning when your battery reaches a threshold you set. You can configure the message and the percentage level for each of four warnings. A separate announcement plays when the battery is fully charged, so you know when to unplug.

Home screen widget

Add the Battery Bar widget to any home screen. It shows your current battery percentage and either the estimated time remaining or the charging status – Charging, Fast charging, or Super fast charging – updated continuously while the service is running.

About the App

Built by Data Automation Professionals – the team behind several Microsoft Office tools and Android apps. Battery Bar is a native Kotlin app that uses Android's foreground service and overlay APIs to draw above the system status bar. It requires the Display over other apps permission to function.