Another Problem that I and many of my friends who are using acre extensor 6700z.The problem is like this that when my battery has been used about 2 years know when I start the laptop on battery then the keyboard and the mouse doesn’t work and if laptop is ruing on AC then is fazes no problem.
This issue is faced by many of my friends using this laptop. Its solution is that as you can see in the picture to the device manager click on batteries and disable the Microsoft ACPI-Complaint Control Method Battery Properties.