The "plugged in, not charging" message is almost always one of three things: a faulty charger or cable, a battery driver glitch, or genuine battery degradation.

1. Confirm the charger is delivering power

The charger has an LED on the brick. Unplug from the laptop, plug into the wall — LED should light up. If it doesn't:

  • Try a different outlet
  • Try a different cable (the wall side and the laptop side both fail)
  • Borrow an identical charger from a colleague and try it

If the LED stays dark on a known-good outlet, the charger is dead — that's a quick ticket for a replacement.

2. Check the charge port for damage

Look into the port with a phone flashlight. The center pin (on barrel chargers) or the connector pins (on USB-C) should be straight and clean. Bent pins, dust, or a loose feeling means the port may need service.

A common pattern: the laptop only charges when you push the cable in at a specific angle. That's a worn port — schedule a service before it stops working entirely.

3. Reset the battery driver

Windows occasionally loses track of the battery state. To reset:

  1. Open Device Manager
  2. Expand Batteries
  3. Right-click Microsoft ACPI-Compliant Control Method Battery → Uninstall device
  4. Restart the laptop — Windows reinstalls it automatically

This is harmless and fixes ghost "not charging" messages.

4. Check battery health

Windows can show you the battery's actual state of health:

  1. Open Command Prompt as administrator
  2. Run: powercfg /batteryreport
  3. Open the HTML file it produces (path is shown in the output)

The Design Capacity vs. Full Charge Capacity ratio tells you how degraded the battery is. Under 70% means it's reaching end of life and should be replaced.

5. Try a different charger wattage

If your charger is under-spec (e.g. a 45W charger for a laptop that needs 65W or 90W), Windows may show "plugged in, slow charging" or refuse to charge under heavy load. Check the wattage on the brick — should match what your model needs.

USB-C laptops are especially picky about this. A phone charger plugged into a laptop USB-C port will sometimes maintain battery without charging.

6. When to ticket

Open a ticket with the battery report attached if:

  • The charger LED is fine, port looks clean, and the laptop still refuses to charge
  • Full Charge Capacity is below 70% of Design
  • The laptop runs only when plugged in (battery is dead, won't hold charge)

The tech will quote a battery replacement or escalate to vendor warranty if it's still covered.