What wattage charger does my MacBook need?
MacBook Air is ~30–35W; MacBook Pro models need 67W to 140W depending on size. Match or exceed the original wattage.
Modern MacBooks charge over USB-C Power Delivery, and newer models add MagSafe 3 while still accepting USB-C. Match the wattage to your model — MacBook Air around 30–35W, MacBook Pro 67W and up. Older MacBooks used MagSafe 1/2 (different connectors).
These MacBook chargers list wattage and connector. A lower-wattage charger charges slowly and may not keep up under load.

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MacBook Air is ~30–35W; MacBook Pro models need 67W to 140W depending on size. Match or exceed the original wattage.
Read the original adapter’s label. It shows output like “19.5V 3.34A” — multiply volts by amps to get watts (here ~65W). Buy the same wattage or higher, never lower, and keep the same voltage and pin type.
Yes, if the voltage and connector match. A 90W charger on a laptop that came with 65W is safe — the laptop only draws what it needs. A lower-wattage charger is the one to avoid.
Older laptops use a round barrel pin in a specific diameter. Newer thin laptops charge over USB-C Power Delivery. They are not interchangeable; check which port your laptop uses and the required PD wattage for Type-C.
Often yes, especially if the laptop runs only while plugged in or charges intermittently. It can also be the battery or DC jack. See our diagnosis guide and test with a known-good charger of the correct rating.
Cable inclusion is noted on each product page. Warranty terms and COD eligibility are shown there too.