To see what percentage your scale’s battery is, the scale must be connected via Bluetooth to Acaia’s Brewmaster app.
Navigate to the “Settings” menu option and make sure “Auto-Connect” is enabled (see image below). With this on, the app will connect to your scale. After switching Auto-Connect on, navigate to the "Remote Scale" section to initiate the automatic connection. You can also tap "Select an Acaia Scale" right above Auto-Connect to manually select a scale.
The battery level will now be shown in “Settings” as shown below. This may take a moment to display.
Recent Firmware Updates
We recently updated the ability to more easily view the battery status on both the Pearl Model S and the Lunar scales.
You can find these firmware updates through the Acaia Updater app, which is available on both the Apple App Store and Google Play Store.
Pearl Model S: when the scale is off, press and hold the Power button until the battery icon and percentage are shown on the display. It will show after ‘Settings’ appears.
Lunar: when the scale is off, press and hold the Power button until ‘Batt’ is shown on the display. It will show after 'SET' appears. The scale will display battery power, e.g. ‘Batt 90’ referring to 90% battery.