Your laptop is plugged in but the battery percentage is stuck, says 0 percent available, or shows plugged in not charging. This applies to most Windows laptops and MacBooks. HP laptops also have HP-specific diagnostics, so use those when available.
Does This Affect You?
Charging problems are not always a bad battery. Loose connectors, weak chargers, debris in the port, driver glitches, power limits, battery-care settings, and software bugs can all produce the same message.
Check the Physical Connections
This quick check fixes many cases.
- Unplug the charger from the laptop and wall, wait 10 seconds, and reconnect both ends firmly.
- Inspect the laptop charging port with a flashlight. Look for lint, debris, bent pins, or damage. Use a soft brush or wooden/plastic toothpick, never metal, for light debris.
- Try a different wall outlet or power strip.
- If available, test with another charger that matches the same connector and wattage.
- Check the cable for fraying, sharp bends, or damage near the ends.
Rule Out a Software or Driver Glitch
The battery reading can get stuck even when hardware is okay.
- Restart the laptop while the charger is plugged in.
- On Windows, open Device Manager, expand Batteries, right-click Microsoft ACPI-Compliant Control Method Battery, choose Uninstall device, and restart.
- Open Settings > System > Power & battery and confirm Windows sees the battery.
- On Mac, click the battery menu or open Battery settings to see whether charging is paused because of optimized charging or battery health management.
- Install pending Windows, macOS, BIOS, or firmware updates that may include power-management fixes.
Check the Charger Power Output
A charger can be connected but too weak to charge under load.
- Confirm the charger wattage matches the laptop requirement. Phone chargers and low-wattage USB-C adapters may charge slowly or not at all while the laptop is running.
- If using a USB-C hub or dock, plug the charger directly into the laptop to test.
- If the power brick gets unusually hot while the battery does not gain charge, the adapter may be failing.
- For removable batteries, power down, remove the battery, inspect contacts for corrosion, and reseat it.
If the charger and connection are good, check battery health. On Windows, run powercfg /batteryreport from Command Prompt and compare Design Capacity with Full Charge Capacity. On Mac, check Battery Health. A large capacity loss, or a laptop that dies immediately when unplugged, usually means the battery needs replacement.
A battery that has stayed plugged in for months can sometimes report poorly calibrated percentages. Let it drain to around 10 to 20 percent, then charge uninterrupted to 100 percent once.
Sources
- Microsoft Support – Fix battery problems for Surface and Windows PCs (2025)
- Apple Support – If your Mac notebook does not charge (2025)
- Lenovo Support – Battery not charging troubleshooting (2024)