• cmnybo@discuss.tchncs.de
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    20 hours 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.

    • JustEnoughDucks@feddit.nl
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      6 hours 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.

    • Kairos@lemmy.today
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      19 hours ago

      Lead batteries are also cheap.

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

      • T156@lemmy.world
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        14 hours ago

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

      • cmnybo@discuss.tchncs.de
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        18 hours ago

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

      • stupidcasey@lemmy.world
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        17 hours 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. It’s a CP1500PFCLCD

        • queerlilhayseed@piefed.blahaj.zone
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          13 hours ago

          It makes sense to me to have low power chargers on a UPS. Once your power comes back online, it needs to deliver enough juice to power everything plugged into the UPS plus the battery charger. A fast charger would be more likely to trip a breaker.