Despite its tiny size, the battery manages to achieve a 200-watt-hour-per-liter energy density, which is comparable to that of larger, conventional lithium-ion batteries.
    • @stoy@lemmy.zipEnglish
      0•9 months ago

      If the mars rovers can function on a fraction of a watt, then I don’t know why my phone can’t…

      • @scarabic@lemmy.worldEnglish
        3•9 months ago

        If the mars rovers can function on a fraction of a watt,

        It doesn’t?

        Perseverance’s power system works essentially like a nuclear battery. …The power system will reliably produce about 110 watts …The MMRTG also charges two lithium-ion batteries, … Perseverance’s power demand can reach 900 watts during science activities.

        Source: NASA

        • @stoy@lemmy.zipEnglish
          2•9 months ago

          Yeah, see!

          An RTG could power my phone!

          Sigh, let me spell my point out for you…

          What I mean is that I can absolutely believe that a solid state battery could power the next gen smart watch, I doubt it will.

          Just as an RTG could power my phone, but I doubt that it will be powered by it.

        • @WhiteOakBayou@lemmy.worldEnglish
          1•9 months ago

          To give some perspective on this, I’ve lived for the last three months in a camper with a DC fridge. 1350 watt battery. The rtg at 110w/hr would keep my battery charged. 50 watt tv, 72 watt fridge, 24 watt starlink plus lights and waterpump. It would be just enough for me to live on I’d say.