I noticed for some time that the tablet was constantly losing charge in Windows 10. The following helped:
- I went to Control Panel->All Control Panel Items->Power Options>Edit Plan Settings->Change Advanced Power Options.
- Select Intel Dynamic Platform and Thermal Framework Settings.
- Change everything to “2 level”.
- Adjust brightness down to 75%.
- In the Intel HD Graphics Control Panel, I switch resolution down to 1280×800, aspect scaled.
Now it charges very slowly, but at least it’s not losing charge.