Comment on New nickel-iron battery charges in seconds, survives 12,000 cycles

stupidcasey@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

• Dindonmasker@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

  UPS batteries are something i don’t understand either. Why have they not changed with all the new tech we have now? Is it just still made of the best chemicals for their use and to then be recycled or something?

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  • cmnybo@discuss.tchncs.de ⁨3⁩ ⁨weeks⁩ ago

    UPS batteries need to be fully charged all the time. Lead acid batteries like to be fully charged. Lithium batteries need to be stored around 50% charge to have a long lifetime.

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    • LodeMike@lemmy.today ⁨3⁩ ⁨weeks⁩ ago

      Lead batteries are also cheap.

      And mine take ~30 minutes to charge. This person may want to replace their batteries.

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      • cmnybo@discuss.tchncs.de ⁨3⁩ ⁨weeks⁩ ago

        Charge time depends on the UPS. The cheap consumer grade ones usually have a float charger that takes forever.

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      • T156@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        They’re also trustworthy, reliable technology. Why change what isn’t broken?

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      • stupidcasey@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        It’s brand new, I’m reading directly from the instructions, if it only takes 30min to change they should say that and it’s not by design.

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    • JustEnoughDucks@feddit.nl ⁨2⁩ ⁨weeks⁩ ago

      This is theoretically something sodium batteries would be good at right?

      Aren’t they not as sensitive to storage voltages? They are almost a perfect lead-acid replacement. Plus a UPS is a great usecase because it doesn’t matter if it is 33% bigger to achieve the same capacity.

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  • NotMyOldRedditName@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    There are newer LFP portable batteries with <10ms UPS switch times that charge quickly and have much longer battery life’s, and LFP cells don’t degrade the same when kept at 100% like other types, although you should still cycle them a few times a year.

    Bluetti makes some, the elite series has their latest UPS features. The non elite are slower and noisier.

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  • frongt@lemmy.zip ⁨2⁩ ⁨weeks⁩ ago

    Yes, lead acid is very reliable and very recyclable.

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  • weew@lemmy.ca ⁨2⁩ ⁨weeks⁩ ago

    Many portable batteries (i.e. campsite batteries) have a UPS mode and can be used that way. Much more expensive though.

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  • hark@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Maybe sodium ion will be a suitable replacement.

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