Hi don’t worry, happy to see some interest. I actually have three kind of UPS at home (I own a lot of computers in my studio and I need protection for each of them) which last year replaced two older models. Unfortunately my experience with UPS is that you can also replace the batteries by yourself (did it a lot of times) but they’re going to give you problems. e. g. last year I changed the batteries on two of them, the first time I had an electric shock they both did not keep my PC alive, so I changed them both. I regularly change them because in either way they will not last more than 3 years.
Keep in mind that some data I’ve collected could differ also because the smart plugs are not that precise on measurement.
Also I discovered that pre-heating the bed before launching the actual print (and now I have 4 AMS units connected and connected an additional series of LEDs around my top riser, connected a BLLED unit and a chamber heater, all things that have risen power consumption) by getting to steps of temperature avoids the alarm being triggered. I first set 30°C and wait it to arrive at that temperature, then I set 40°C and wait for it to reach the new goal, after that I simply put the destination temperature even 100°C when printing ASA
On cold mornings when I do that operation is beeps for the first 5/6 seconds when moving to 19°C/22°C to 30°C but then stops.
So I imagine - but I’m not good as you are in electric calculations, I just report what the tools I have are telling me - that the peak raising the alarm is the initial one and doing this way lowers the absorption curve.