High power consumption of Ring Alarm base station

I plugged our Ring Alarm base station into a power meter and was surprised to discover it drawing 124 watts of power, steady for several minutes. No sensors doing anything. Battery was fully charged so it shouldn't have been drawing extra. It's normally plugged in 24x7. That's more energy that our refrigerator draws. Why so much? Anyone else measured the power consumption of theirs? Is it similar?