Laptop Battery Not Charging When Plugged In? 12 Fixes That Work

If your laptop shows "Plugged in, not charging", stops charging at 60% or 80%, or the percentage doesn't move at all, the cause is usually one of four things: a battery-saving charge limit that's switched on, the charger or port, a driver or firmware glitch, or a worn-out battery. Work through the fixes below in order; the first ones are free and take a minute.

Quick diagnosis

Symptom	Most likely cause	Go to
Always stops at around 55–60% or 80%	Battery charge limit / conservation mode is on	Fix 1
No charging icon at all, charger light off	Charger, cable, outlet or port	Fixes 2–3
"Plugged in, not charging" at a random %	Driver, firmware or wrong charger wattage	Fixes 3–7
Charges, but drains very fast or dies at 20–30%	Worn battery	Fix 9
Only works on the charger; dies when unplugged	Battery failed	Fix 10
Laptop very hot while charging	Heat protection pausing charging	Fix 8

Fix 1: Check for a charge limit (the most common "problem")

Most laptop makers include a setting that stops charging below 100% to make the battery last longer. If yours is stuck at the same percentage every time, this is almost certainly why. It's not a fault.

Brand	Where to find it
Lenovo	Lenovo Vantage → Device → Power → Conservation Mode (IdeaPad/Legion) or Battery Charge Threshold (ThinkPad)
ASUS	MyASUS → Customization → Power & Performance → Battery Health Charging (Full capacity / Balanced / Maximum lifespan)
Dell	Dell Optimizer or Dell Power Manager → Battery settings (e.g. Primarily AC use, Adaptive), or in the BIOS
HP	BIOS → Battery Health Manager, or HP's battery app on newer models
Acer	Acer Care Center → Battery charge limit (80%), on supported models
Microsoft Surface	Surface app → Smart charging, or UEFI → Battery limit
MacBook	System Settings → Battery → Battery Health info → Optimized Battery Charging (holds at 80% for a while)

Turn the limit off if you need a full charge today, or leave it on if the laptop stays plugged in most of the time; that's exactly what it's designed for.

Fix 2: Rule out the outlet, cable and charger

1. Plug straight into a wall socket instead of a power strip.
2. Reseat both ends of the charger, including the mains cable on the power brick.
3. Check for a charger light, frayed cable or a hot spot along the cable.
4. Try a known-good charger with the same wattage. If that works, replace your charger.

Fix 3: Check the port and the wattage

• USB-C laptops: try another USB-C port (not all of them accept power) and a charger that matches your laptop's original wattage. A 20–30 W phone charger may show "plugged in, not charging" or "slow charger".
• Dell and HP: a non-original or damaged charger can trigger "AC adapter type cannot be determined" and stop charging.
• Look inside the port for lint or a loose connector. See our guide to fixing a broken laptop charger port.

Fix 4: Do a power reset

1. Shut down and unplug the charger and all accessories.
2. If the battery is removable, take it out.
3. Hold the power button for 15–30 seconds to drain leftover power.
4. Reconnect the battery and charger and start the laptop.

Some laptops have a tiny pinhole battery reset button on the bottom, and some Lenovo and Dell models have a battery-disconnect option in the BIOS. Your manual will say.

Fix 5: Reinstall the battery driver (Windows)

1. Right-click Start → Device Manager → expand Batteries.
2. Right-click Microsoft ACPI-Compliant Control Method Battery → Uninstall device. Don't touch the AC Adapter entry.
3. Shut down, unplug, then plug in and restart. Windows reinstalls the driver automatically.

Fix 6: Update BIOS and power drivers

Charging is controlled by the laptop's firmware. Install BIOS, chipset and power-management updates from the maker's support app (Lenovo Vantage, MyASUS, Dell SupportAssist, HP Support Assistant) or website. Keep the charger connected while a BIOS update runs.

Fix 7: Check Windows power settings

In Windows 11, Settings → System → Power & battery: make sure Battery saver isn't set to stay on and check for an "Energy saver" note. In Control Panel → Power Options → Change plan settings → Change advanced power settings → Battery, the critical-battery action should be Hibernate or Shut down only on battery, not when plugged in.

Fix 8: Let it cool down

Batteries stop charging when they're too hot to protect themselves. Use the laptop on a hard surface, clean dust from the vents, and close heavy apps or games while charging. If it's often very hot, see our guide on why a laptop fan gets loud.

Fix 9: Check battery health

Windows: open Command Prompt as administrator, run powercfg /batteryreport, and open the battery-report.html file it creates (in your user folder). Compare Design capacity with Full charge capacity:

Full charge vs design capacity	What it means
80% or more	Healthy
60–80%	Worn: shorter runtime, still usable
Under 60%	Plan a replacement

Mac: System Settings → Battery → info icon next to Battery Health. "Service Recommended" means it should be replaced. A lithium-ion cell slowly loses capacity with every charge cycle, so this happens to every laptop eventually.

Fix 10: Replace the battery

If the battery is badly worn or the laptop dies as soon as you unplug it, replace the battery. Buy the exact part number printed on the old battery or listed by the manufacturer, ideally an original or a reputable brand. If the battery is swollen (the case bulges, the trackpad lifts or the lid won't close), stop using the laptop on battery and get it replaced promptly; don't puncture or press on it. MacBook owners can check our guide to MacBook Pro battery replacement cost.

Fix 11: Calibrate the battery reading

If the percentage jumps around (for example drops from 40% to 5%), the battery gauge may be off. Charge to 100%, use the laptop until it shuts down on its own, then charge to 100% again without interruption. Do this rarely; it's for the reading, not the battery itself.

Fix 12: Get a repair

If a known-good charger and a new battery don't help, the fault is likely the charging circuit on the motherboard. Use the manufacturer's service if under warranty, or a repair shop.

Brand-specific notes

• HP: run HP PC Hardware Diagnostics (press F2 at startup) → Component tests → Battery.
• Dell: run ePSA/SupportAssist diagnostics (F12 at startup → Diagnostics), and check the BIOS battery screen for charging mode.
• Lenovo: check Conservation Mode first; on many IdeaPads it stops at around 60–80%.
• MacBook: reset the SMC on Intel Macs (Apple silicon Macs only need a restart).

Make your battery last longer

• Keep it between about 20% and 80% day to day; use the charge limit if you're usually plugged in.
• Avoid heat: don't charge on a bed or in a hot car.
• Use the original or a matching-wattage charger.
• For long-term storage, leave it at around 50%.

FAQ

Why does my laptop say plugged in, not charging?

Usually a charge limit is on, the charger wattage is too low, or the battery driver or firmware needs resetting. A worn battery or a faulty charging circuit are less common causes.

Why does my laptop stop charging at 80%?

A battery-protection setting such as Lenovo Conservation Mode, ASUS Battery Health Charging or macOS Optimized Battery Charging is on. Turn it off in the maker's app if you need 100%.

Is it bad to leave a laptop plugged in all the time?

Not with a charge limit on. Without one, keeping a battery at 100% and warm wears it faster.

Can I use my laptop without the battery?

Many laptops with removable batteries run on the charger alone; most modern laptops have internal batteries and need them installed.

Related guides

• Laptop Won't Hold Charge Unless Plugged In: What to Do
• Laptop Charger Port Broken? How to Diagnose and Fix It Safely
• How to Charge Laptop Battery Without Charger? 5 Best Ways
• How Much Does a MacBook Pro Battery Replacement Cost?
• Is It Bad to Use a Phone While Charging? Safety Insights Revealed