A few months ago I purchased a Teclast X98 Air 3G tablet.
The tablet worked fine and the huge battery power was a breeze to work with.
Always loaded to the full 100%, I could use the tablet for nearly 8 hours.

Until 2 weeks ago, when Windows 10 installed an update.
Now, the tablet will not load the battery more than 50%.
Nothing broken, but the Windows "Power Settings" menu gives only 1 option.
All the other options are gone.
There is an option to create a "New Power plan", but this option does not allow to change the battery charge level.

Can I get my old battery charge back?