Windows Services to Disable

Connected User Experiences and Telemetry
SysMain (Previous called PreFetch)

Task Scheduler Microsoft Windows App Experiences (Disable all 4 Tasks)
Task Scheduler Microsoft Windows Customer Experience Improvement Program (Disable both the tasks)

Enable S3 Sleep

Modern PCs use S0 sleep (Which sometimes drains battery when its in sleep mode)

powercfg /a
 
reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0 /f

The powercfg command should show that S3 sleep is supported on device On some devices in the BIOS there will be option to enable this feature