i got same problem in my laptop . it was also doesn't work with out battery> but now its work perfect . the solution is for my case maybe doesn't work for you guys im not sure 1-remove the battery and charger 2- press and hold the power button for around 30 sec 3- I tried to use different charger and plug it without battery and its work perfect now without in sudden shutdown so i guess we can summaries the solution by check the following : 1- the battery 2- the charger 3- driver (reinstall) 4-fan and cooling ( clean or change it) 5- check for any app or program that you install before the problem occur>... good luck guys and i hope that will be helpful for allof you regards