• cmnybo@discuss.tchncs.de
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    25 days ago

    I thought they would have been pushing for sodium ion batteries instead. Lead acid batteries are a bad choice for anything that needs to be cycled frequently.

    • Chozo@fedia.io
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      25 days ago

      They’re a also bad choice for e-bikes because they’re heavy as hell. I had an e-bike a while back that had two lead acid batteries, and they were about 15 lbs each. The added weight made it almost impossible to go uphill with the motor, so you’d have to pedal a much heavier bike up hills. Not a good experience at all.

  • Jeena@piefed.jeena.net
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    25 days ago

    I mean there are quite many fires in China started by those e-bikes but I thought it was because of bad quality.

    • rumba@lemmy.zip
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      25 days ago

      There are chemistries that are less volatile But they’re less energy dense as well.

      The biggest problem I see on most of the Chinese stuff is a lack of safety in the battery packs. They’re just mass-producing cells and shoving them together, It wouldn’t be very expensive to put a small battery management system on every cell. Watch each cell for voltage and temperature. Have them shut down when they’re out of safety margins

      • Ajen@sh.itjust.works
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        24 days ago

        That doesn’t explain why the new bikes have older technology than the bikes they’re urging people to trade in.

        • Nytarsha@lemmy.sdf.org
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          24 days ago

          It’s in the article:

          Over the last decade or so, China has seen a shift from older AGM batteries, which are heavy and bulky, toward lighter and longer-lasting lithium-ion batteries.

          However, safety concerns regarding rare yet dangerous lithium-ion battery fires have put a pause on that proliferation. The government instituted new safety standards for lithium-ion batteries in e-bikes last year, but there’s also been a major pushback toward AGM batteries for the domestic market.

        • Pyr_Pressure@lemmy.ca
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          24 days ago

          Because new items can still use old technologies if it makes more sense to do so?

          A 2025 vehicle with a manual radio sold for $30,000 might still sell better than a 2020 vehicle with a touchscreen dash for $25,000

    • BigDanishGuy@sh.itjust.works
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      24 days ago

      Yeah, they should have just gone to the frontier of technology with carbon-air cells. It’s weird, right? I thought China was a first mover in tech.