Today and before have encountered unexpected shutdown. My laptop have a new battery, because the old one died, but this also happened to me with this.
I see that this happen to me when the system use 100% of the CPU using the turbo boost.
This are my specs:
I tried to use the indicator-cpufreq
to set the system on battery saver but this gave a very bad performance and the conservative mode does not limit the maximum of the CPU.
Also this does not happen to me on Windows 10 but I saw that windows limit to 60% the performance when its on battery.
And it does not be overheating because I played video games recently on windows without problems.
What can i do to limit the performance or to not have that shutdowns? Thanks.