The same guy built an e-bike using disposable vapes last year.

  • Iced Raktajino@startrek.website
    link
    fedilink
    arrow-up
    18
    ·
    edit-2
    6 days ago

    That guy’s got some brass ones, lol.

    I’ve upcycled disposable vape batteries for lots of projects, but never anything that draws significant amounts of current. Usually powering ESP8266/ESP32 projects that draw a couple hundred mAh at most.

    While I’m all for keeping thing out of the landfill, I would be absolutely terrified to put that many questionable quality lithium batteries into an array let alone try to draw any substantial amperage from them.

    • GlitchyDigiBun@lemmy.world
      link
      fedilink
      English
      arrow-up
      11
      ·
      edit-2
      6 days ago

      If you’re not pulling 120v AC from a 4.2v parallel lipo bank, are you even living life to it’s fullest?

    • e8d79@discuss.tchncs.deOP
      link
      fedilink
      arrow-up
      10
      ·
      6 days ago

      They put fuses on every single cell, another one between both halves of the setup, and monitor everything using a BMS. I wont claim that this thing is as safe as a commercially available product but treating this as if it where outrageously dangerous is misrepresenting things as well.

      • Iced Raktajino@startrek.website
        link
        fedilink
        arrow-up
        7
        ·
        edit-2
        6 days ago

        Yeah, I didn’t watch this video b/c I’m at work, but I have seen his ebike video so I’m assuming the construction is similarly well thought out.

        It’s just that all the fuses and BMSs can’t protect against a dodgy cell that decides to self-immolate. For cheap, disposable devices that are only meant to be charged 5-10 times or less and then thrown away, I’m super wary of the batteries that are chosen for those. Have seen too many things burst into flames and even expensive well cared-for devices turn into spicy pillows.

      • Onomatopoeia@lemmy.cafe
        link
        fedilink
        English
        arrow-up
        2
        ·
        6 days ago

        Good things to do, but it still only takes on poor quality cell to go up in flames and the rest will quickly follow.

        Still very interesting.