hey , i got my new early 2015 macbook pro , i installed win 7 via boot camp , everything was fine till day before yesterday when it auto shut down ( battery was 10% remaining ) and thn didnt turned on , i took help from this fourm and removed the back cover unplug the battery from the board for a minute and connected it to the wall outlet , it turned on , and thn i replug the battery , it started working again fine but today the battery was 60 % and it shut down again itself two times and i had to do the same process again ,can any one help me out whats wrong it my MBP ?