make sure you set your maximum battery temperature limit to 30 degrees instead of 40 degrees. this has been found by our testing community to be a safer option.
i was crunching for years with android phones and kindle tablets... i thought i was invincible maybe... but now i have 2 swollen batteries from BOINC. even trying to take a picture while BOINC is on can make it overload... crunch with caution. <3
Thanks for the tip @peppernrino I'll apply this now and add this to the french guide. s/o