MacBook Pro shuts down randomly

I own a MacBook pro 13 really 2015. Yesterday and today it shut down for no reason while was just browsing on the internet. Tried to start it and it didn't start after many attempts. I run apple diagnostics (start+D) and i have it shows i need to replace battery soon (ptt002). My battery cycles are 652. I run diagnostics with etrecheck and my battery seems fine but it found a cleanmymac3 plist file which i immediately deleted cause i know its trash. I also deleted kaspersky internet security. I only use my mac for browsing and multimedia (music, videos). Any other ideas why it shuts down?