Battery Circle APK for Android

Experience precise battery feedback with Battery Circle, created by Adrian Ulrich to display exact battery percentage in the Android status bar. The app listens for Android battery broadcasts and updates a circular indicator, showing 1% increments and offering black and white theme options for visibility. It supports legacy and modern devices, including Motorola models with specialized 1% reporting, and installs with a small footprint. Ideal for users who need clear, accurate battery reporting without continuous background processes.

The app shows exact percentages in a circular icon and supports 1% increments, black and white status-bar themes, and a "circle only" visual. It scales to HDPI and low-resolution screens, and includes a Motorola-specific 1% reporting fix. The installer is very small, roughly 1.2 MB, making the tool appropriate for devices with limited storage. Its codebase is open-source under GPLv2, enabling inspection and contribution.

Battery Circle delivers pixel-precise battery readouts in the status bar

It minimizes runtime impact by relying on OS battery broadcasts

Rather than polling the system or keeping active background services, the app updates only when the Android OS emits a battery broadcast, which the developer designed to avoid extra power use. This architecture provides near-zero runtime overhead and makes the indicator suitable for older handsets, since the tool supports very old Android builds alongside current versions without imposing continuous CPU or network activity.

Safety is conservative: the app complements the system without replacing core icons

It adds a separate circular indicator to the status bar and leaves the device's default battery icon intact, so it does not rewrite system UI elements. The developer limits permission requests and relies on broadcast listening instead of persistent services, a combination that reduces attack surface. The GPLv2 codebase further provides transparency for anyone wanting to audit behavior on a production device.

Most users can operate the app with default settings, while options remain minimal

The interface exposes a small set of choices: theme (black or white), an outlined font option, and a circle-only display. Default configuration presents the indicator immediately, so non-technical users do not need to change settings. Advanced users can benefit from the Motorola 1% step support and open-source code, but no deep configuration is required to get precise readings on legacy hardware.

Practical choice for resource-constrained devices, with limited customization

Given its broadcast-based update method and minimal installer footprint, the app suits owners of legacy and resource-constrained devices who need precise status-bar feedback. One limitation is the intentionally small option set, which may not satisfy users seeking extensive visual customization or widget integration. This approach reduces potential battery overhead while preserving standard UI elements.