When I went to turn it on next; it showed no sign of life. No chime; nothing. However, after leaving it for around 10 hours unplugged, I could turn it on, yet the fans were STILL going mad and it said "No battery recognised".
I left the MacBook again for another 10 hours, yet this time, it was flawless for about 5 mins until I searched 'Facebook' on google and then it shut down again.
It's a 1 year old MacBook which had a 80% battery health last time I opened it using CoconutBattery.
From this day forward it hasn't turned on. Any ideas?