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DickFiasco@sh.itjust.works to Lemmy Shitpost@lemmy.world · 22 hours ago

Milliamp-hours per hour

sh.itjust.works

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Milliamp-hours per hour

sh.itjust.works

DickFiasco@sh.itjust.works to Lemmy Shitpost@lemmy.world · 22 hours ago
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  • AItoothbrush@lemmy.zip
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    12 hours ago

    Wouldnt that just translate back to it drawing 510ma of current? If you use 510mah in an hour that means you are drawing 510ma of current. That also means for all day battery life you would need a 8000mah battery at least which would make quite the chunky watch lol.

    • ftbd@feddit.org
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      9 hours ago

      Yeah, this seems like a metric specifically chosen s.t. it makes intuitive sense to the average person AND it has a nice physical interpretation. Similar to how EU efficiency labels show power draw in W as kWh per 1000h of use

      • Cort@lemmy.world
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        6 hours ago

        Similar to how EU efficiency labels show power draw in W as kWh per 1000h of use

        That sounds nice for appliances that run intermittently like refrigerators

  • Viking_Hippie@lemmy.dbzer0.com
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    16 hours ago

    How many MPG per gallon does it get per mile, though?

  • lividweasel@lemmy.world
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    19 hours ago

    “Honey, can you come down to the bank? I need you to put in your PIN number at the ATM machine, as ASAP as possible!”

    • ChaoticNeutralCzech@feddit.org
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      15 hours ago

      No, there’s no “per” in mAh.

      • oerpi@discuss.tchncs.de
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        15 hours ago

        Of course there is, miliAmp per(e) hour,duh.

        • ChaoticNeutralCzech@feddit.org
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          15 hours ago

          You got me there. Congrats.

  • zeropointone@lemmy.world
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    22 hours ago

    It’s funny and painful at the same time. Like having sex with a BDSM clown.

    • adarza@lemmy.ca
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      22 hours ago

      except there’s no ‘safe word’ when you’re dealing with the anal carnage from verizon.

      • zeropointone@lemmy.world
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        22 hours ago

        There is. It’s “Worcestershiresauce sauce”.

        • SpaceNoodle@lemmy.world
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          21 hours ago

          No, the safeword is “0.002 cents”

          • zeropointone@lemmy.world
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            12 hours ago

            That’s the safe safeword.

  • xia@lemmy.sdf.org
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    20 hours ago

    Give 'em a break, I’m sure it’s just their first error with units. (Procedes to google “verizon dollars and cents”)

    • Zachariah@lemmy.world
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      21 hours ago

      their

      • xia@lemmy.sdf.org
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        20 hours ago

        Thanks.

  • themaninblack@lemmy.world
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    17 hours ago

    So this is 510 mA per hour, I guess. That or it just draws 510 mA continuously

    • Naich@lemmings.world
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      15 hours ago

      510mA per hour is nonsensical because A is an instantaneous measurement. 510 mAh/h is 510 mA. I guess you need a backpack to carry the battery around if you want the watch to last all day.

    • Nikls94@lemmy.world
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      15 hours ago

      The battery has the storage capacity to pass 510 mA in an hour. If you discharge at half the capacity of 255 mAh (0.5C) it will be empty after 2 hours.

      If it was to draw 51 mAh (0.1C) it would last 10 hours.

      But if it would draw 1020 mAh (2C) it would only last 30 minutes

      • themaninblack@lemmy.world
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        8 hours ago

        This is the winning response I think.

    • ChaoticNeutralCzech@feddit.org
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      15 hours ago

      Not really, it makes sense to give a max current. If a car’s top speed is listed as 200 km per hour, it does not mean that it goes this fast continuously.

      • themaninblack@lemmy.world
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        15 hours ago

        I get this is a battery but the units don’t make sense unless it’s going at 100% all the time

        • ChaoticNeutralCzech@feddit.org
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          15 hours ago

          Really? I have a camera that is rated “3.7 V, 2 A” but only draws that amount from the battery when the flash capacitor is recharging. Yes, the normal current draw would be more helpful, and in case of a watch, the standby current.

          This may be the charging current but it would be pretty unusual to pick a value slightly above what legacy USB can deliver (500 mA).

          • Quatlicopatlix@feddit.org
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            9 hours ago

            The max rating is important so your powersupply/battery can be sized accordingly. No powersupply can provide a abitrary current at their rated voltage.

  • paequ2@lemmy.today
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    22 hours ago

    Cursed units: https://www.youtube.com/watch?v=kkfIXUjkYqE

    • TropicalDingdong@lemmy.world
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      21 hours ago

      Furlongs per fortnight.

      And an IRL one I encountered, and some one straight facedly expected me to do scientific research in this unit: The Miner’s Inch.

      • Ilovethebomb@sh.itjust.works
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        20 hours ago

        Acre-feet as a unit of volume is one I’ve heard before.

        Absolutely cursed unit.

        • bear@lemmy.blahaj.zone
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          19 hours ago

          Seems like a useful unit for measuring irrigation water.

          • TropicalDingdong@lemmy.world
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            19 hours ago

            Its usually on the purchasing side, and yeah, from that perspective it makes sense, especially in deficit irrigation scenarios.

            I take far less issue with acre feet than I do with the miner’s inch.

          • lectricleopard@lemmy.world
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            19 hours ago

            Or manure.

            • TropicalDingdong@lemmy.world
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              19 hours ago

              Or bullshit.

      • outhouseperilous@lemmy.dbzer0.com
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        16 hours ago

        Furlongs per fortnite, but its talking about the file size of the uncompiled source code of the current version.

  • hoshikarakitaridia@lemmy.world
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    11 hours ago

    mA / h / h => mAh / h2

    That’s one hell of a measurement unit.

    Edith: apparently I’m an idiot

    • Revan343@lemmy.ca
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      18 hours ago

      mAh ≠ mA/h

      • hoshikarakitaridia@lemmy.world
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        11 hours ago

        So it would be

        mAh / h => mA

        Then?

    • themaninblack@lemmy.world
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      17 hours ago

      deleted by creator

  • Kairos@lemmy.today
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    20 hours ago

    Bros time traveling

  • warm@kbin.earth
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    21 hours ago

    deleted by creator

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