Magic Battery Mini 4.2.1 -

: Automatically adds or removes devices from the view as they connect or disconnect.

is a lightweight utility designed for macOS that monitors the battery levels of connected Bluetooth input devices. While version 4.2.1 is an older release—succeeded by current versions such as 4.2.5 and higher—the app generally receives positive marks for its simplicity, though users should note strict limitations on device support. Key Features & Performance Magic Battery Mini 4.2.1

: Displays battery info in a small, floating window or via a Notification Center widget rather than cluttering the menu bar. : Automatically adds or removes devices from the

The app is available for download on the Apple App Store and developer Sascha Simon's website . If you'd like, I can: Compare this "Mini" version to the app. Key Features & Performance : Displays battery info

Check if your specific is on the supported list. Help you find free alternatives for battery monitoring. Magic Battery Mini - App Store

In the version 4.2 series, updates primarily focused on and fixing potential crashes that occurred during long periods of continuous operation. If you are using this specific version, ensuring your macOS is compatible is vital, as later updates (like 5.0.0) were required for the latest system stability.