Dear all, I need your advice. I think my battery have already died. I'm not sure 100% but if I put out charge, my surface suddenly turn off and cannot turn on except put in charge. When I check battery by Surface_Tweak_Tool. Information is 83% charged for battery. However, when I put out charge, it turn off. So does my battery die ? Just by this machine 3 months and I've never thought I have to face with this problem. So now how I can contact with Microsoft support to ask about my situation ? Thank you in advance.