Funny. I am facing the identical problem mentioned by Shaleen. Battery suddenly going from 60% or 50% to 0% and phone switching off after a few screen flickerings. When the phone is switched on it shows 1%. Battery shows a slight bulge. My Note is just 1 year and 10 days old and I suspect the battery has reached the end of its life. I use the phone extensively for everything. Wifi always on. Bluetooth on while driving. Lots of internet, Whatsapp, browsing, messaging, etc. I only hope it’s not some other problem. I plan to buy a battery within a day or two and I suppose it should solve the problem. I keep it on charge whenever I am not using. Also, phone will be on charging in the car too when I am driving.