This pattern (battery always at 0% and instant shutdown on unplug, despite apparently normal capacity numbers) matches the failure scenarios where Surface can no longer run on battery and requires hardware service rather than further software troubleshooting.
From the official guidance for Surface battery issues:
- When a Surface turns off as soon as it is unplugged, or
- Windows shows battery problems that are not resolved by driver removal/reinstall, updates, and diagnostics,
the next step is to move to service/repair options.
Relevant points from the documentation:
- The general battery troubleshooting article covers cases where:
- "Surface turns off when you unplug it" and
- "Plugged in, charging (won't run on battery)".
- The Surface diagnostic and service guides for devices with battery issues recommend:
- Running SDT battery tests (already done in this case).
- If SDT passes but the device behavior is still abnormal (cannot run on battery, stuck at 0%), escalating to Microsoft Support for hardware inspection and potential battery or power subsystem replacement.
- The general Surface support guidance for non‑responsive or non‑recoverable issues explicitly states that if the documented solutions do not resolve the problem, service and support options are available, including:
- Sending the device to Microsoft for repair.
- Using in‑person service centers where available.
- Self‑repair only if technically experienced and with the correct parts and service guides.
Given:
- Battery report shows a sudden "Battery changed" event followed by permanent 0% reporting.
- SDT reports normal battery function but the system cannot operate off AC power at all.
- All standard software and firmware troubleshooting steps have been completed.
This aligns with a hardware‑level fault (battery pack, battery controller, or power circuitry) rather than a fixable Windows/driver issue. The documented next step is to initiate a service request:
- Go to the Surface device service page (for example, via "How to get service or repair for Surface").
- Check warranty status and create a service order.
- If preferred and available, use an in‑person service center for hardware inspection.
- If technically experienced and comfortable with self‑repair, use the official Surface service guides and parts catalog for Surface Laptop Studio to perform a battery/power module replacement, following all safety notes.
In summary: this scenario typically requires hardware repair or replacement of the battery/power assembly. Further software changes are not indicated once the documented steps and SDT diagnostics have been completed and the device still cannot run on battery.
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