• @[email protected]
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        84 months ago

        they have, although some do take AA or AAA batteries but its very uncommon. some especially carbon monixide dectectors have internal batteries that require replacement.

        • @[email protected]
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          74 months ago

          We just bought new smoke detectors and they take AA, I bought a 9v just out of assumption and got home and was blown away

          • GladiusB
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            -34 months ago

            9v are just two AAs wrapped together. So not surprised.

            • @[email protected]
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              34 months ago

              Eh not quite. AA are 1.5v so two would only be 3v.

              You might be thinking of the big 6v lantern batteries. They’re usually 4 x 1.5v cells together.

              • GladiusB
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                14 months ago

                I thought I watched some YouTube video where they linked them and it worked. But who knows how accurate the numbers were. I guess not since you know.

    • @bitchkat
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      44 months ago

      Get the ones with the built in 10 year battery. Smoke and CO2 combo.

    • @A_Very_Big_Fan
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      4 months ago

      Unrelated but a few days ago I found out you’re not supposed to stick two 9v’s together when I burnt the shit outta my fingertips :3

      • @BradleyUffner
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        34 months ago

        Yeah… That’s basically creating a short circuit. Don’t do that.