Laptop Power Supply Replacement Q

  1. TV2
    Posts : 2,023
    W10 Pro 20H2

    Laptop Power Supply Replacement Q

    I want to be sure my advice is correct.

    When replacing a modern laptop power supply, is it important that the voltage and the amperage of the new supply match the old supply exactly?

    She's got a replacement that is 4.74 amps and the original is 2.37. (for both the voltage is 19)
      My Computers

  2. Posts : 809

    Voltage must match. Amperage of the new supply can be higher.

    The amperage rating on the supply is the maximum it can output. So if the laptop pulls 2A the supply will only output 2A regardless of the maximum rating.
      My Computer

  3. TV2
    Posts : 2,023
    W10 Pro 20H2
    Thread Starter

    Thanks for info.
      My Computers


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