So I probably already know the answer to this question myself: NO! But I'm going to ask anyway, mostly because I'm curious if anybody else has experienced something similar.
I had bought a Sound Devices 744t recently, it's second hand but through a shop, so it comes (luckily) with a warranty. I did some quick test recordings last Friday, and everything was happy and dandy. Then, last night, I decided to charge the battery with the supplied power supply plugged into the mains, the 744t switched on. After an hour or so I checked how it was going, happened to touch the device, to find out it was extremely hot. The 744t itself that is, not the adapter.
The 744t was inside a Petrol bag, maybe that made it a bit hotter, but one side of the bag was unzipped and completely left open, plus there was ample of space for airflow both to the top and the bottom of the recorder. I couldn't find any info in the manual about the recorder getting that hot when charging, no info online either.
Anyway everything still seemed kind of OK and when I checked this morning, the battery was fully charged and the recorder itself back to a normal temperature. However! When I then went out on a happy day trip full of sweet sweet recording opportunities, it turned out that the mic preamps didn't work anymore, the headphone amp wasn't playing back the test tone nor the recordings I'd done on Friday, and also the gain overload LED of the headphone amp was continuously in the red.
So yeah, something has fried, and I'm sending back the 744t. I called Sound Devices customer support and they told me to do just that. So there you go, I just answered my own question, can I now also give myself an upvote?
Anybody else experienced something like this?
PS - The 'funny' thing is that I'd decided to splash out on a 744t since my previous recorder (Tascam DR680) was rendered useless after the tip of my headphone plug had broken off inside the headphone amp, and couldn't be removed, not even after completely dismantling the recorder. Seems that The Audio Gods are having a go at me. I do hope they're having fun! :P