Just a moment...
cleantechnica.com

" CATL has thrown its hat into the ring with the Naxtra sodium-ion battery, with 175 Wh/kg and 10,000 lifetime cycles along with operation from -40°C to 70°C. CATL is planning a start-stop battery for trucks using the technology. It has the potential to replace lead-acid batteries. CATL has announced battery pricing at the cell level in volume at $19/kWh. "

  • DupaCycki@lemmy.worldEnglish
    4·
    5 hours ago

    A typical phone battery is rated for about 500 (you can massively improve this by not charging it beyond 80%).

    This 80% thing is incredibly simplified and not even always accurate. Personally I charge to about 95% and my phone batteries remain at 98-100% condition after 2 years of everyday use.

    Limiting yourself to 80% doesn’t really make sense. You’re losing 20% capacity instantly, instead of losing it slowly over a few years. To be fair, a lot of people treat their devices so poorly that they may hit the 80% in less than 12 months, so I guess there’s that.

    • spongebue@lemmy.worldEnglish
      2·
      3 hours ago

      I keep my car charged to 80% to help with battery degradation, and here’s why:

      • Most days, I don’t use more than 30% of my battery capacity (roughly 75 miles/120km). Even that’s high. I don’t care if that means I go from 100%->70% or 80%-50% when I’ll charge back up again overnight

      • It’s not a permanent setting! If I do go on a longer trip, I’ll bring it back up to 100% and not sweat it!

      From what I’ve heard, charging beyond 80% increases the degradation rate, meaning time spent at that level is an important part of the equation. If I keep my phone plugged in overnight and at my desk, I have a lot of time at full charge that I’m not really using, but if I know I’m flying that day or running errands all day I can pop it up to 100% and it will be a non-degraded 100%

      I’ve had my S20 far longer than my car and never did limit its charge. It’s fine for me, but the battery is sure showing its age.

    • khannie@lemmy.worldEnglish
      3·
      4 hours ago

      Yeah, a friend of mine made a similar argument and I hear it. Personally I’m always right beside a fast charger so it’s not an issue for me.

      My phone has an option to auto-stop charging at 80% so I use that. I will occasionally charge it to 100% but like maybe once a month. TBH if it had an option to stop at 90% I’d probably use that as a middle ground (my steam deck does and I use 90% with it). I got 5 years out of my last phone and I’m 3 years into the current one and hoping to get many more out of it.

      edit:

      Personally I charge to about 95% and my phone batteries remain at 98-100% condition after 2 years of everyday use.

      That’s a good reference point, cheers. Do you not find it a pain to monitor that though?

        • khannie@lemmy.worldEnglish
          1·
          3 hours ago

          OnePlus claim it’s not and a quick search does back that up. For the one specific to my phone they move a chunk of the work off the device (reducing heat on the phone) and onto the charger. It’ll still charge normally with any USB charger but it gets much hotter and is much slower compared to the OnePlus “warp” charge.