How to Fix a Laptop That Is Plugged In but Not Charging

2026-10-14 · LuxuriousComputers

Your laptop is plugged into the charger, the power light may even be on, but the battery percentage is not going up — or Windows shows "Plugged in, not charging" next to the battery icon. The laptop might run on AC power but refuse to charge the battery, or it might not recognize the charger at all. This problem has several distinct causes, from a simple settings issue to a failing battery.

Check the physical connection first

Before troubleshooting software, rule out the obvious hardware causes:

• Check both ends of the charger. Make sure the plug is firmly seated in the laptop's charging port and the AC adapter brick is fully connected to both the wall cable and the DC cable. A loose connection at any point can cause intermittent or no charging
• Try a different outlet. Plug the charger into a different wall outlet to rule out a dead outlet or a tripped circuit. Avoid power strips with faulty surge protectors — plug directly into the wall to test
• Inspect the cable and connector. Look for frayed cables, bent pins (on barrel-style connectors), debris in the USB-C port, or burn marks on either the plug or the port. A damaged cable may deliver enough power to run the laptop but not enough to charge the battery simultaneously
• Check the charger LED. Most laptop chargers have a small LED light that indicates they are receiving power. If the LED is off, the charger itself may be dead. If it turns off when you plug it into the laptop, the laptop may have a short circuit in the charging port

Remove the battery (if removable)

If your laptop has a removable battery (common on older business laptops and some modern budget laptops):

1. Shut down the laptop and unplug the charger
2. Remove the battery
3. Hold the power button for 30 seconds to drain residual charge from the motherboard
4. Plug in the charger without the battery and turn on the laptop. If it runs on AC power alone, the charger works
5. Shut down, reinsert the battery, plug in the charger, and turn on. The battery may now begin charging — the power drain reset can clear a stuck charging state

Most modern laptops have internal batteries that are not user-removable. For these, skip to the software troubleshooting steps below.

Check Windows battery settings

Battery charge limit

Many laptop manufacturers include software that limits the battery charge to 80 percent or some other threshold to extend battery lifespan. When this is enabled, the battery will show "Plugged in, not charging" once it reaches the limit — this is intentional, not a problem.

• Lenovo: Lenovo Vantage app, Battery settings, Conservation Mode (caps at 60 percent) or Charge Threshold setting
• Dell: Dell Power Manager, Battery Information, Custom charge. Primarily Start Charging and Stop Charging thresholds
• HP: HP Support Assistant, Battery, Battery Health Manager. Some HP laptops have Adaptive Battery Optimizer that limits charging
• ASUS: MyASUS app, Battery Health Charging, set to Maximum Lifespan Mode (caps at 60 percent) or Balanced Mode (caps at 80 percent). Switch to Full Capacity Mode to charge to 100 percent
• Microsoft Surface: Surface app, Battery Smart Charging. When enabled, limits to 80 percent

If you need a full charge, temporarily disable the charge limiter. The battery will charge to 100 percent normally.

Windows battery driver

The Microsoft ACPI-Compliant Control Method Battery driver manages communication between Windows and the battery. If this driver is corrupted, Windows may not recognize the battery's charging state correctly:

1. Open Device Manager (right-click Start, Device Manager)
2. Expand Batteries
3. Right-click Microsoft ACPI-Compliant Control Method Battery and select Uninstall device
4. Also uninstall Microsoft AC Adapter if listed
5. Restart the laptop with the charger plugged in. Windows will reinstall both drivers automatically on boot

After restarting, check if the battery begins charging. This fix resolves many cases where the battery is physically fine but Windows has lost the ability to communicate with it correctly.

Wrong or underpowered charger

Using the wrong charger can cause "plugged in, not charging" even though the laptop receives some power:

• Wattage too low: A 45W charger plugged into a laptop that requires 65W or more may power the laptop but not have enough spare wattage to charge the battery at the same time. The laptop prioritizes running over charging. Check the bottom of your laptop or its documentation for the required wattage, and check the label on your charger for its output wattage
• USB-C chargers: USB-C charging is not universal across all USB-C ports. Some USB-C ports on laptops support charging (marked with a battery icon or a lightning bolt) while others are data-only. Also, not all USB-C chargers support USB Power Delivery (PD), which many laptops require. A phone charger rated at 20W will not charge a laptop that needs 65W PD
• Third-party chargers: Some Dell and Lenovo laptops display a warning and refuse to charge (or charge slowly) when a non-original charger is detected. The laptop identifies the charger through a chip in the power connector. A genuine replacement charger from the manufacturer resolves this

BIOS and firmware update

Laptop manufacturers occasionally release BIOS updates that fix battery charging bugs. A firmware issue can cause the charging circuit to behave incorrectly even when the battery and charger are both fine:

1. Go to your laptop manufacturer's support website (Dell, HP, Lenovo, ASUS, etc.)
2. Enter your laptop model or serial number
3. Look for BIOS/UEFI firmware updates and any battery or power management firmware updates
4. Download and install according to the manufacturer's instructions. Make sure the laptop is plugged into AC power during the update — a BIOS update that loses power mid-flash can brick the laptop

Battery health

Lithium-ion batteries degrade over time and with charge cycles. A battery that has degraded significantly may refuse to charge, charge only partially, or lose charge much faster than when new.

Check battery health on Windows

1. Open Command Prompt as administrator
2. Run powercfg /batteryreport
3. Open the generated report (usually at C:\Users\YourName\battery-report.html)
4. Compare Design Capacity to Full Charge Capacity. If Full Charge Capacity is less than 50 to 60 percent of Design Capacity, the battery is significantly degraded

A degraded battery may show erratic charging behavior: jumping from 20 to 80 percent suddenly, dropping rapidly under load, or showing "plugged in, not charging" when it gets close to full because the cells cannot hold more charge. If the battery health is poor, replacement is the fix.

Reset the EC (Embedded Controller)

The Embedded Controller is a chip on the motherboard that manages power, charging, and battery communication independently from the CPU and Windows. If the EC gets into a stuck state, it can block charging even when everything else is fine:

• For laptops with removable batteries: Remove the battery, unplug the charger, hold the power button for 30 seconds. This drains the EC and forces a reset
• For laptops with internal batteries: Shut down completely (not sleep or hibernate). Unplug the charger. Hold the power button for 30 to 60 seconds. Some manufacturers have a specific EC reset procedure — for example, Lenovo ThinkPads have a pinhole reset button on the bottom of the laptop

Charging port damage

If the charging connector feels loose, wobbles, or only charges when held at a specific angle, the charging port is physically damaged. Common causes are tripping over the power cable (which yanks the connector), repeatedly plugging in at an angle, and general wear from years of daily use. A damaged charging port requires physical repair — soldering a new port to the motherboard or replacing the daughter board that holds the port, depending on the laptop model.

Battery charging help in Marion

If your laptop shows plugged in but not charging and the steps above have not resolved it, LuxuriousComputers Repair in Marion can test the charger output, battery health, charging port, and EC to identify the exact cause and get your laptop charging again.