When a laptop stops charging, the first instinct is often to order a replacement charger. That may eventually be the answer, but a short, careful diagnosis can save you from buying the wrong part or overlooking a simple fix. Work through the checks in order, from the wall outlet to the laptop itself, and note what changes at each step. A clear pattern usually points to the cause.
Check the Charger, Cable, and Outlet
If your charger has a small indicator light, note whether it is on, dim, or off when plugged in. A light that never comes on in any outlet suggests a problem with the charger or cable, while a light that works in one outlet but not another points to the outlet itself. If you can safely borrow a compatible charger from the same laptop model, testing with it can narrow the cause quickly. Use only a charger that matches your laptop model and its original specifications.
Inspect the charging port on the laptop with a torch, looking for dust, lint, or bent parts. Dust can sometimes be removed gently with a dry, soft brush or a short burst of compressed air held upright, following the product guidance. Do not insert metal objects into the port, and do not force a plug that does not fit smoothly. If the port feels loose or damaged, that is a repair question rather than a charger question, and a qualified technician can assess it safely.
Check Battery and Software Clues
Next, look at what the laptop itself reports. With the charger connected, check the battery icon and system settings for a charging message. Some laptops show whether the charger is recognised, whether the battery is charging, or whether charging has paused. If the laptop runs normally on mains power but the battery percentage never rises, the battery itself may need attention. If it only runs on battery and shuts down when the charger is connected, note that difference, because it helps a technician diagnose the fault.
Decide What to Do Next
By now you should have a short list of observations: whether the charger light works, whether another outlet or charger changes anything, whether the port looks clean and firm, and what the system reports. If a known-good compatible charger fixes the problem, you have a strong case for replacing the charger with the correct model. If nothing changes, or if you see damage, swelling, heat, or a strange smell, unplug the laptop, stop using it, and seek a qualified technician. Do not continue charging a device that shows those warning signs.
For other step-by-step fixes you can work through at home, see How to Troubleshoot Slow Wi-Fi, Room by Room and How to Fix a Second Monitor That Is Not Detected on Your Laptop. Both guides follow the same careful approach of checking one thing at a time before replacing anything.