Short answer
Test whether the laptop runs on the charger alone with the battery removed, and whether the charger's own light behaves normally. Those two answers separate a cheap fix from an internal repair.
The usual causes
- A failed charger — the most common cause by a wide margin, especially where the cable meets the brick.
- A worn-out battery that no longer accepts a charge.
- A loose or damaged charge port, often from the cable being knocked or pulled.
- A charging circuit fault on the mainboard.
- Using an underpowered USB-C charger that runs the machine but can't charge it.
Battery safety
Checks you can do safely
- 1
Look at the charger's light
If the brick's light goes out when it's plugged into the laptop, the charger is being pulled down by a fault — or is failing itself.
- 2
Wiggle test at the port
With the charger connected, gently move the plug. If charging flickers on and off, suspect the port or the cable end.
- 3
Try a different outlet and a known-good charger
Match the voltage and wattage rating. An underspecified USB-C charger is a genuinely common cause of 'plugged in, not charging'.
- 4
Run without the battery
If the battery is removable, take it out and run on the charger alone. Working like that points at the battery; not working points at the charger, port or board.
- 5
Check the battery report
On Windows, run powercfg /batteryreport from a command prompt and compare full charge capacity against design capacity. A large gap means a worn battery.
What the results indicate
- Works with another charger — replace the charger and you're done.
- Runs on the charger but the battery never gains charge — battery replacement is the likely fix.
- Charging cuts in and out when the plug moves — charge port repair, which is soldering work on most modern laptops.
- No response from any charger — mainboard charging circuit, which needs testing rather than parts guessing.
When to bring it in
Charge port repair and mainboard work need the machine apart and a soldering station — it isn't a kitchen-table job. Bring it to the shop and we'll confirm which of the three it is before anything gets ordered.
The service that covers this
Laptop Repair
Cracked screens, dead charging ports, broken hinges and cases — full-service laptop hardware work.
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