• Novi@sh.itjust.worksEnglish
    0·
    5 months ago

    Voltage. AA and AAA are 1.5 volts. A 9volt has essentially 6 AAAA batteries in them ran together in series to provide 9-volts. It’s a common standard, and has the snap terminals which is good for things that are moving around instead of a spring loaded compartment.

    • john89@lemmy.caOPEnglish
      0·
      5 months ago

      Thank you for your answer.

      Is there some advantage to having 9 volts instead of 1.5?

      • 9point6@lemmy.worldEnglish
        0·
        5 months ago

        Some of the components typically used (e.g. op-amps) in audio gear like active pickups & pedals typically need at least 5-10V to work.

        If you used AA for those scenarios you’re either going to need a load of batteries or you’re gonna have a short battery life.

        9V batteries are just a better fit for the use case basically and mean things like active pickups & pedals can be kept small