I have the doorbell powered from 24V transformer (30VA).
I noticed it gets noticeably warm after short time, so I measured what’s the power consumption.
DoorBell is pulling around 0.7-0.8 Amp (in AC mode) when doing nothing. I measured it using good quality clamp meter.
Config is optimal battery power, no movement detection.
Is this power consumption normal?
That does sound a bit high, especially if it’s just sitting idle with no motion detection and set to battery optimization mode. That’s around 17–19 watts and feels more than most doorbells usually pull. That said, without knowing which Eufy model you’ve got, it’s hard to say for sure. Some models like the dual cam or 2K wired versions naturally draw more power, even when nothing’s going on.
Also, if you’ve got a wired chime in the mix, that could definitely be adding to the power draw. Mechanical chimes in particular can create extra load or keep pulling small amounts of power depending on how they’re wired. Some setups need a chime adapter or bypass to handle that properly.
A 24V/30VA transformer will get warm in AC mode since it’s actively powering the doorbell and keeping the battery topped up. As long as it’s not scorching hot and everything’s working fine, it’s probably within spec.
A typical 2K video doorbell (such as models from brands like Ring, Eufy, or Arlo) consumes a relatively small amount of electric current, usually in the range of about 0.2 to 0.5 amps at low voltage (commonly 16–24 volts AC) when wired, which translates to roughly 3 to 10 watts during normal operation; however, power usage can temporarily increase during active events like recording video, streaming live footage, or using night vision, while battery-powered versions manage consumption more efficiently by staying in low-power standby mode most of the time and only drawing higher current when motion is detected or someone presses the bell, which can also be analyzed or estimated using a maths solver for more precise calculations.
UK Salary Calculate UK is an easy-to-use online tool that helps users estimate their earnings, deductions, and take-home pay across the United Kingdom. It works as a reliable UK Income Tax Calculator 2026, allowing individuals to quickly understand how much tax and National Insurance they need to pay.