Dell Vastro 14 Sleeps when I use android studio or visual studio

Hy I have Dell Vastro 14 
It sleeps when GPU load increases. I don't know what the problem is it some times hibernates or sleeps. But when I use without battery but the charger plugged in It works fine. 
Please help IF anyone from the Community knows the issue
I have tried changing registry options troubleshooters and also tried to disable sleep through Command Prompt but It still worries and I am extremely frustrated due to this