Battery Limit is Enabled on Surface Book 2 but only works for battery
BS limits power usage when your battery gets low. BL prevents the battery from charging fully if you have the SB plugged in for a long time (was named kiosk mode in some
How to Enable or Disable Battery Limit in Surface devices
Enable or Disable Battery Limit in Surface Pro 3 You can turn on Battery Limit on On Surface Pro 3, via Kiosk Mode. This mode was initially meant for scenarios where the device needs to run