• MinnesotaGoddam
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    1 day ago

    now you’ve got me wondering how many of those i’d need to wire up a new ebike battery.

    • dai
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      15 hours ago

      I’ve got around 100+ cells so far, wanting to replace the lead acid batteries in an oldschool dell rackmount ups in my rack. Bit more involved than I’d hoped, but the batteries are so easy to obtain. The risk of burning the house down and killing my family currently outweighs the cool fufo factor, for now.

      Biggest issue is the differing sizes and shapes depending on the device. Lots are approx 16500 but you get the odball square or some tiny thing that’s half useless.

    • Zedd_Prophecy
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      1 day ago

      That would be a cool ass project … Make sure you use a steel box for when it catches fire. I’d totally do it just for fun.

      • MinnesotaGoddam
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        22 hours ago

        nah, let’s do tungsten and make the box a heatsink. also heavier as fuck.

    • Axolotl@feddit.it
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      1 day ago

      The problemis that they are all different so recharging it safely is quite a challange

      • Tar_Alcaran@sh.itjust.works
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        16 hours ago

        Nah, you just need one controller per type. There are probably some more common types you could focus on.

        I miss the times when you could just scavenge 18650s out of anything from laptops to ebikes. I built a home battery system out of those.

      • MinnesotaGoddam
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        1 day ago

        okay, i’ll wire two together and try it. dammit. okay let’s try three. i wish there was some kind of math or numbers…