Eufy 11+ 3 years old. Goes to charging station, green light on charging station goes off and blue light on vac starts pulsing or breathing, starts issuing one beep every 15 seconds for a couple of minutes then it stops beeping, blue breathing light stops and goes black and green light on charging station stays off. Why is it beeping and why does the blue light go black?
Eufy 11+ Blue Breathing Light Beeps every 15 seconds for a couple of minutes and then stops charging
You could open the battery case and unplug the battery for 20 sec and plug it again.
May be that helps.
After 3 years of usage the battery could be in bad condition too.
You could replace it.