Hello there friends i just want to ask you're thoughts about my macbook its been more than 5 yrs from now since i bought my mcbook and i notice that my bluetooth is not working anymore and my charging is having a problem like what happen yesterday i charge it and whent it reach 100% it turns GREEN the light at the connector slot i didnt unplug it as i used to be for more than 5 yrs but now i notice that my battery drain and the light still GREEN, from 100 to 30% so i touch the connector cord and there you go it turns ORANGE again meaning its charging, WHAT HAPPEN HERE? why did it drain the battery which is still plug to the wall socket?