Surface Book 2 Plugged In but battery 1 and 2 not charging

Install all available Surface Book 2 firmware updates, then run the Surface Diagnostic Toolkit; if both batteries remain at 0%, Microsoft’s supported next step is hardware service.

1. Install the last available Surface Book 2 firmware

Since restarting and reinstalling the battery drivers did not help, do not repeat those steps.

1. Keep the Surface connected to power.
2. Open the Surface app.
3. Expand Help & support.
4. Select Check for updates, install everything offered by Windows Update, and restart when prompted.
5. Return to Windows Update until no further Surface firmware or driver updates are offered.

Surface Book 2 previously received firmware updates specifically addressing battery stability and battery reporting. Its driver and firmware servicing period has now ended, but previously released updates remain available.^1^

2. Test the charging hardware

The lightning symbol means Windows detects external power; it does not prove that the batteries can accept or retain a charge.

• Check the Surface Connect plug’s LED:
  • Solid white: proceed to battery diagnostics.
  • Off or flashing: unplug the charger from both the Surface and wall for at least 10 seconds, inspect and clean the connector with a dry lint-free cloth, reconnect it, and test another wall outlet.
• Flip the Surface Connect plug 180 degrees and reconnect it.
• If available, test with another known-good, correctly rated Surface power supply. If another charger works, service or replace the original charger; if it does not, service the Surface.^2^

Confirm the charger’s rating from its small-print label:

• Surface Book 2 15-inch: minimum 95 W, model 1798.
• 13-inch with NVIDIA GPU: minimum 95 W, model 1798.
• 13-inch without NVIDIA GPU: minimum 39 W, model 1800.^3^

“OEM” alone is not sufficient if the adapter is intended for a lower-wattage Surface model.

3. Check both batteries’ reported condition

1. Select Start and search for Surface Diagnostic Toolkit.
2. Install it from Microsoft Store if it is not present.
3. Run the toolkit and open Battery information.
4. Record the Designed capacity, Current capacity, and Wear level for each detected battery.

The newer Surface Repair Tool automatically checks compatibility; if it does not support this model, use the Surface Diagnostic Toolkit.^4^

Results indicating that either battery is not detected, has essentially no current/full-charge capacity, or still cannot charge after the firmware and charger checks require physical inspection rather than another battery-driver reinstall.

About the screen not detaching

This behavior is expected at 0%: both Surface Book batteries must be above 10% before the keyboard will release. A battery below that threshold causes the Detach key to show a brief red light instead of releasing the screen.^5^

Do not force the display off. Connector cleaning is not currently practical because Microsoft’s procedure requires detaching the display first.

If charging remains at 0%

Back up important files while the Surface still runs from its adapter, then create a Microsoft service order or use an authorized in-person repair provider. Microsoft lists self-repair, send-in service, and authorized-provider inspection as the available paths when a Surface still will not charge.^6^

Because the Surface Book 2 is outside its firmware servicing period, no future firmware fix should be expected for unresolved charging hardware.

References

1. Surface Book 2 update history | Microsoft Support
2. What to do if your Surface power supply doesn’t work
3. Surface charging requirements and power supplies for Surface Book | Microsoft Support
4. How to check the battery capacity of your Surface | Microsoft Support
5. Fix problems detaching or attaching your Surface Book keyboard | Microsoft Support
6. Surface battery won’t charge or Surface won’t run on battery | Microsoft Support