Laptop adapters can look alike but behave very differently. Before replacing one, check the label on your old adapter or on the underside of the laptop.
1. Output voltage (V) must match
The voltage must be the same as the original — for example 19.5V. A different voltage can stop the laptop from charging or damage it.
2. Wattage (W) should be equal or higher
Wattage tells you how much power the adapter can supply. Use the same wattage as the original or higher (for example a 65W laptop can use a 65W or 90W adapter of the same voltage and pin). A lower-watt adapter may overheat or charge very slowly.
3. Connector (pin) size and type
Pins come in different outer and inner diameters (for example 4.5mm with a centre pin, or 7.4mm), and many newer laptops charge over USB-C. Match the exact connector.
Also check
- Some laptops need the adapter's "ID" signal to charge — a cheap adapter without it may show "not charging".
- Look for proper certification and a well-built cable.
Not sure which adapter fits? Send your laptop model or a photo of the old adapter's label to Parts Walla and we will suggest the correct one.
Need the part for this repair?
Search by your model number or ask our team.