TROUBLESHOOTING GUIDE

Why is my laptop not charging?

A laptop that will not charge can have a simple charger problem, a worn battery, a damaged charging port, a USB-C power-delivery issue or a motherboard power fault. The useful first step is to separate “no power at all” from “runs on the charger but the battery will not charge.”

Laptop charging & power diagnosis All Help Guides

What the symptom can mean

Possibility 1A failed or under-powered AC adapter can look exactly like a laptop fault.

Possibility 2A worn battery may run for only minutes, stay at one percentage, or refuse to charge beyond a certain level.

Possibility 3A loose DC jack or damaged USB-C port can create intermittent charging.

Possibility 4Some USB-C systems have power-delivery controller or motherboard faults even when the port looks normal.

Possibility 5Battery-protection settings can intentionally stop charging around 80% on some models.

When to stop DIY troubleshooting

Stop using the charger if you smell burning, see sparks, notice melted plastic, or the battery is swollen. A swollen lithium battery should not be pressed, punctured or repeatedly charged.

When professional diagnosis makes sense

If the simple checks do not identify the cause, diagnosis can prevent unnecessary parts replacement. Laptop Clinic serves NDG and Greater Montréal. Describe the symptom and what happened before it started; you do not need to know the technical name of the fault.

Useful details before a diagnosis

Note the exact computer model, when the problem started, and any recent change such as an update, drop, liquid spill, new part or new charger. If the problem is intermittent, a short video or photo of the error can help. For storage-related problems, always mention whether the files are important before any reinstall, reset, initialization or formatting attempt.