The SwellSync monitor comes with an internal battery and it should run for hours on full charge. To charge, you can plug in the micro USB cable into the back of the unit while seated in or outside of the dock.
The SwellSync monitor will auto-sleeps after 3 minutes if there are no devices connected via Bluetooth or web browser.
When the unit is asleep, it will wake when it detects the flywheel spinning - so give your erg a tug before you are ready to pair.
To check the current status of the SwellSync monitor, look inside the charging opening for LED lights:
- Blue light means the unit is awake; no blue light means the unit is sleeping.
- Red light means the unit is recharging.