• Xavienth@lemmygrad.ml
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    1 year ago

    smart phones that never need to be charged

    Well with an average consumption of maybe half a Watt over the course of a day, you would need 5000 of these to power your phone given they put out 100 microWatts.

    • ComradeSalad@lemmygrad.ml
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      1 year ago

      The average telephone uses 4.5-11 watts of energy a day. 0.5 is barely anything, flip phones maybe used that much 20 years ago.

      • Xavienth@lemmygrad.ml
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        1 year ago

        You’re conflating Watt-hours and Watts. Watts are a measure of power, which is energy consumption per unit time. Watt-hour is power multiplied by time, the time cancels and so it’s a measure of energy. 0.5 Watts for an entire day adds up to 12 Watt-hours in a day, which is a reasonable estimate for a phone battery.

        • ComradeSalad@lemmygrad.ml
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          1 year ago

          My bad! You’re right!

          I always hated electrical engineering and it was by far my worst subject. Sorry for not being very knowledgeable with it, thanks for the correction!

    • 201dberg@lemmygrad.ml
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      1 year ago

      Didn’t they say in the article they had plans to release a 1watt battery in 2025? I’ll be honest, I’m not good with electricity. lol

      • RedClouds@lemmygrad.ml
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        1 year ago

        They did, but from the sounds of it I’m guessing they’re just gonna be a physically bigger one. This is a very very small battery, but produces very little energy. But easy enough to just slap a few of them together.

        Unfortunately, it doesn’t change the power density or anything like that.

        This specific technology will never be in charge of running a smartphone or anything like that. But maybe a tweak or innovation on these radioactive batteries could get them to be a few watts and you could get a super low-powered cell phone device that could be used in emergencies only and last for like 50 years.