I don't have that model, but my 801's will ground out sometimes if they are screwed on to tight. That would make the battery hot, but on a pt an error would come up on the usb device. The post above is correct by saying at 5v, it's gonna be hot. If it's a problem for you try another style atty. Or maybe a drip tip. The stainless steel one I have on my screw driver seems to always be cold to the touch. Hope this helps.