Is it normal for StopWatt to feel warm after a few hours?

Mine does the same thing and it’s been plugged in for months now. Warm casing never seemed to bother it and the light stays green. I figure any device pulling power from an outlet will generate a bit of heat, that’s just how it goes.

Mine warms up too if it’s been running most of the day. I just checked mine now after having it on since morning and it’s the same, just a bit warm. Doesn’t seem to affect the green light or anything. I think it’s just how it works.

I noticed the same thing around the end of my first week with it. The casing gets noticeably warm but it’s been running fine for a couple months now. I figure if it ever gets actually hot to the touch that’s when I’d start paying attention.

Mine runs warm too but honestly I’d be more curious if it stayed completely cool.

Warm casing is pretty standard for anything that sits between the outlet and your load for hours at a time. I wouldn’t call it a red flag on its own.

What I’d watch for is whether it gets *hot* after heavy use, like when the AC or a big appliance kicks on. That would make me look at the outlet and the device more closely. But a consistent warmth after it’s been running all day? Mine does that too, and it’s been doing its thing for a while now without any drama.

The way I see it, these things are doing a bit of work internally to smooth out the power, and that work creates heat. If it were totally cold all the time, I’d actually wonder if it was doing anything at all. As long as the green light stays steady and it doesn’t start smelling like burnt plastic or get too hot to hold, I’d let it run.

I also made sure mine wasn’t plugged in somewhere with poor airflow or daisy-chained behind a bunch of other adapters. That’s the only time I’d start to care about the heat. Give it a feel on a cooler morning and compare it to how it feels at night after the TV and everything else has been on. If the difference seems reasonable, it’s probably fine.

Mine barely gets warm at all, honestly. I’ve had it plugged in since spring and I only really noticed any heat when I first got it and checked on it daily. After that initial week or two, it just sort of settled in and stays pretty much room temp whenever I happen to touch it.

If it’s just slightly warm after hours of continuous use, that doesn’t really stand out as a problem to me. Most things that sit between the outlet and your home’s wiring will generate a bit of heat just from doing their job. I’d only start asking questions if it ever gets hot enough that you can’t comfortably leave your hand on it.