The Hailie® sensor battery shows half-full when used for the first time.

A Hailie® sensor battery may display as half-full in the Hailie® app when using for the first time due to an old version of the Hailie® app.

Go to the Apple App Store or Google Play Store to update to the latest version of the Hailie® App.

The version installed on your mobile device is displayed at the bottom of the Log In screen.

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