The BB Priv is often accused for heating issues. And indeed IF it is used intensively, it WILL heat.
The peak I have in recorded history was 48.5°C eight months ago on 2017-08-13 (on MarshMallow)
This was while using for GPS in a car (aircon out of order) around noon a warm summer day.
Here a collage with more details, (click to enlarge)
The above images are crops from Gsam battery-monitor.
Note that the Priv has stopped charging when the temperature reached about 40°C. And this is quite clever, as both charging and discharging a battery generates heat, and this will -of course- add on to the heat generated by the electronics. It is obvious that the climb in temperature is decreased as it stops charging, and after a while it even falls.
So the BEST thing you can do if you know you are going to do intensive work (like using for sat-nav on a car-trip), is to charge it fully BEFORE starting, and preferably keep it plugged in, so it will have the electronics as the ‘only’ heat source.
I do recall that it got (even) hotter on Lollipop, but have not got any measurements that far back.
I got several posts on how to get a better battery stamina – and avoid heating without a good cause. E.g this
The nice graphs are from 3C Battery Monitor
I fell asleep once listening to a podcast on YouTube on my Nexus 4. I’m not sure why, but it got disconnected from WLAN and it fell back on cellular data, with rather poor coverage at that time, which made it generate a lot more heat. The phone was also sitting on my bed, on a fluffy blanket, and it had its screen on at 50% brightness. I was woke up by a smell similar to that of ironing clothes! o.O I’ve never seen a phone heating up to that point. I don’t know the exact temperature, my first reaction was to close everything and just let it cool down.
This happened a couple of years ago, and thankfully nothing got broken. Although this year a part of my touchscreen stopped working, and as a result I got a Xiaomi Mi A1, with which I’m very happy 🙂 But that’s another story.
Hi, Amazing that no thermal security circuit cut in and shut the phone down, or at the least throttled the cpu down, Amazing that it survived – and lucky it did not set the linen and then you on fire… 😮
There is a lot of energy stored in a battery, and we tend to forget how bad this can go when this is unleashed accidentally – and not a word on Samsung’s Note Oops.