Laptop says “plugged in, not charging”: why, and how to fix it
The charger is in, the laptop runs fine, but the battery icon says plugged in, not charging, or it sits at 60% or 80% and never goes higher. Often that's deliberate; sometimes the laptop isn't getting enough power; occasionally the battery is worn out.
1. It stops at the same percentage every time: a charge limit
Lithium-ion batteries wear fastest when kept full and warm, and laptops that live on a desk sit at 100% all day. So most makers offer a setting that stops charging early, and some turn it on by default. While it's active, Windows shows plugged in, not charging once the limit is reached. Exact names and levels vary by model and change between versions, but typical ones are:
| Maker | Where to look | Typical limit |
|---|---|---|
| Lenovo | Lenovo Vantage: Conservation mode or charge threshold | around 55–80% |
| ASUS | MyASUS: Battery Health Charging | 60% or 80% |
| Dell | Dell Power Manager or BIOS: primary charge setting | custom or adaptive |
| HP | BIOS or HP app: battery care / adaptive optimiser | often around 80% |
| Microsoft Surface | Surface app or UEFI: battery limit / smart charging | 50% or 80% |
| Mac | System Settings, Battery: Optimized Battery Charging | holds at 80% until needed |
If you need a full battery for a trip, switch the limit off the day before, then back on. Leaving it on is better for the battery's life.
2. The charger can't supply enough power
A laptop that is busy can use most of what a small charger provides, leaving nothing over for the battery. That's common with USB-C, where any charger fits: a 20 W phone charger or a 30 W tablet charger in a 65 W laptop will often just slow the drain, and Windows may warn about a slow charger. Use the original charger, or one rated for at least the same wattage (printed on the brick, e.g. 65 W). The same goes for power banks: check the bank's USB-C port supports laptop power (usually 45–100 W PD). The power bank calculator shows how much of a laptop battery a given bank can refill.
3. The USB-C port or cable
- On many laptops only one or two USB-C ports accept charging. Look for a small charging or lightning-bolt symbol, or try each port.
- Standard USB-C cables carry up to 60 W. A laptop charger above 60 W needs a cable rated 5 A (100 W) or 240 W, or it will charge slower.
- Docks and monitors that “charge over USB-C” often supply less power than the laptop wants. Test with the charger plugged straight into the laptop.
- Barrel-plug chargers have a centre pin that can bend. Check it and the cable for kinks near the plug.
4. Heat (and cold)
Batteries pause charging when too warm, and a laptop running games or video exports on a soft surface gets warm fast. Put it on a hard surface with the vents clear and let it cool. A laptop left in a freezing car will also wait before charging; let it warm to room temperature first.
5. Windows: reset the battery driver
Windows talks to the battery through a standard driver, and it sometimes gets stuck reporting the wrong state. This fix is safe and often works:
- Right-click Start and open Device Manager.
- Expand Batteries.
- Right-click Microsoft ACPI-Compliant Control Method Battery and choose Uninstall device. (Leave the AC adapter entry alone.)
- Restart the laptop. Windows reinstalls the driver automatically.
Updating the BIOS or firmware from the maker's support site can also fix charging bugs. If the laptop has a removable battery, shut down, unplug the charger, remove the battery, hold the power button for 15–30 seconds, then reconnect everything. Many sealed laptops have their own “battery reset” or power-reset procedure in the manual.
6. The battery is worn out
Every battery loses capacity with use. On Windows, open Command Prompt and run powercfg /batteryreport. It saves a page showing design capacity and full charge capacity: if the second is far below the first, the battery is worn. On a Mac, System Settings, Battery, then the info button next to Battery Health shows its condition, and System Information shows the cycle count. A battery that has dropped to a fraction of its design capacity, or that the laptop flags as needing service, needs replacing rather than fixing.
Stop and get it checked if the trackpad or keyboard is lifting, the case won't sit flat or the bottom bulges. Those are signs of a swollen battery, which shouldn't be charged.
Related
USB-C charger says slow charger · Touchpad raised or stiff (swollen battery sign) · Laptop overheating · Power bank won't charge my phone (or is slow) · Phone gets hot while charging · Power bank mAh vs Wh · Is it bad to charge a phone in the cold? · Why phones drain fast in the car or on the train · USB-C cables explained: which one charges a laptop · Why phones stop at 80% overnight · Earbuds or case not charging · Interactive: why phones and computers get hot
Questions
Why does my laptop say plugged in, not charging?
Usually a battery charge limit has been reached, the charger isn't powerful enough, the cable or USB-C port isn't suitable, or the battery is too warm. If it always stops at the same percentage, it's a charge limit.
Why does my laptop stop charging at 80%?
A battery-saving setting such as Lenovo Conservation mode, ASUS Battery Health Charging, a Surface or HP battery limit, or Mac Optimized Battery Charging is holding it there to slow battery wear. Turn it off in the maker's app if you need a full charge.
Can I charge a laptop with a phone charger?
If the laptop charges over USB-C it may accept one, but a 20-30 W phone charger often isn't enough to run and charge a laptop at the same time. Use a charger with at least the original wattage.
How do I check my laptop battery health on Windows?
Run powercfg /batteryreport in Command Prompt and open the report it saves. Compare full charge capacity with design capacity.
Does uninstalling the battery driver in Windows delete anything?
No. Uninstalling Microsoft ACPI-Compliant Control Method Battery and restarting makes Windows reinstall the same driver, which often clears a stuck charging status.
Published · updated .