Can I Use a Higher Wattage Power Supply With My Laptop?

⚛️ The voltage and polarity of the power supply must match. Amps and watts have some flexibility.

Using a higher wattage power supply
You can safely use a power supply rated for higher output wattage as long as the output voltage matches and the polarity of the connector is correct. You should also make sure that the input specification for the power supply — what it expects from your wall socket — is also correct.

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Chapters
0:00 Higher wattage power supply
1:08 Swapping power supplies
2:08 The rules
4:00 Input versus output
7:20 On plugs, sockets, and polarity
9:30 Output voltage must match
9:45 Amps or watts must be the same or more
11:20 What if watts or amps are less?
13:20 In short...

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