My netbooks power cube (tiny power brick for laptops) gets scorchingly hot, I mean hot to the touch where it can nearly burn you! Putting your foot on it with sock, you can easily feel the heat. How could I mount a Big heatsink on the casing of the charger, as I dont want to open it. I figured just using a pipe clamp on it to hold it somewhat snug. Any other ideas?
Taking a temp reading with a thermocouple, I am getting 39C or 102F. Cool, yet this is measuring the plastic case, and it has NO air holes. Imagine the inside.
It being that hot isn't unusual at all like blueroom says. Every power supply maker has different specs. Apparently you'rs doesn't mind the pack being a good heater. I've seen some that only get mildly warm to the touch as well.
It would take 30 seconds to get a third degree burn from 130F degrees, and 10 minutes at 120F degrees. If you hug your power brick for the several minutes required to get a serious burn you deserve it =) Incidental contact can not produce a first degree burn.