I did battery diagnostics and found out that the info was false and it was charging. Also SOME TIMES IT EVEN SAYS PLugged in NOT CHARGING ! When My laptop Brand new. I try installing the power management software ACPI driver for my model : It is compatible and I need this driver because on the battery icon on system tray it shows the wrong estimated time before fulled charged for example when it is 23 % 3 mins till full charge.
Same thing here ! I have Lenovo Z50-75 that came with WIN10 64bit Home.