Can brushed motors run underwater?

I know that brushless motors can run underwater, but can brushed motors do so for extended periods of time? This is assuming the brushed motor has no sensors or internal circuitry.

5 Answers

  • DIEGO.
    Lv 7
    4 weeks ago

    this is a good question!

  • 1 month ago

    Yes but the water will reduce the output. You’ll also have a corrosion problem down the road. Salt water will be even worse. If you can, sealing the motor with something like a petroleum jelly will give some protection.

  • 1 month ago


    In a brushed motor, you have the conducting parts ("brushes") in direct contact with the water. Electrolysis will ensue - unless the water is sufficiently conductive to give you a straight short across the brushes.

  • Dze
    Lv 7
    1 month ago

    yes but generally not for 'long' periods of time water promotes corrosion .. it wont hurt them to be exposed to water if maintenance is kept up ...

  • What do you think of the answers? You can sign in to give your opinion on the answer.
  • 1 month ago

    And you have to wait for a month

Still have questions? Get answers by asking now.