What do all the Ember Mug light colors actually mean?

May 5, 2026
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See if you've ever wondered what the LED on your Ember mean. While it's been years since I last looked it up myself, here's what I found:
Flashing red = charging
Solid red = low battery
Solid green = fully charged
Flashing white = bringing mug to temp
Solid white = reached temp
Flashing yellow = after successful reset
Flashing blue = Bluetooth pairing mode
Any other color = user selected in an app
The yellow one I always forget, most people never reset there mug. The white and green are easily confused, the green is just for dock charging, white for the mug. Im curious if anyone else noticed other colors, firmware issue perhaps?


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This is mostly correct but for Travel Mug 2 the LED are different. Solid white pulses when actively heating vs just maintain temperature. The green on the charging dock is actualy a very pale green that some people see as white, the reason for much of the green/white confusion. I’ve had three of these over the years and the second generation is much easier to read than the original.