The ZeRound2/2HR has an advertised maximum battery life of 3 days. The standby time and battery life of the device varies depending on your settings and charge/discharge cycling.
There are many factors that could cause the device to report less than the advertised battery life.
There are specific Activity and System settings that can be adjusted to maximize the battery life on your device:
- Disabling Alarms/Reminders
- Disabling wrist flick mode
- Disabling wireless features such as WiFi and Bluetooth
- Lowering the backlight
- Disabling Alert and Key Tones
- Disabling Vibration Alerts
- Disabling notifications
- Charge the device fully