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Trek launches its first throttle-controlled electric moped, fits two riders (electrek.co)
submitted 3 years ago by [M] to c/micromobility@lemmy.world
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[–] 2 points 3 years ago* (1 child)

One thing that I forsee helping in the future is having 18650/21700 batteries be interchangeable like normal AA batteries are.

If devices had sufficiently smart BMS modules then we could stick any batteries into them without any added fire risk and they could simply alert us when one was bad and needed to be replaced. Also with regards to fire risk there are mitigations that should be standard (like what tesla does).

If there were no "batteries included" and they were easy to add it would cut the cost and the e-waste by a ton.

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  • [–] 3 points 3 years ago (1 child)

    New battery tech in the next 5 years is hopefully going to make lithium ion obsolete. Fingers crossed.

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  • [–] 2 points 3 years ago* (2 children)

    I've been hearing that my whole life and it hasn't actually improved much in the last 20. But yeah it would be great if you're right.

    But smart BMS with easily user-replaceable batteries is tech we could use today. Furthermore you can buy packs like that off aliexpress right now.

    Also, wanting to reuse batteries from an old device after upgrading will always be a problem.

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  • [–] 4 points 3 years ago

    Bro, a lot of shit was still using NiMh batteries in 2003. I know a lot of the advancements haven't been very sexy, but charge discharge cycle count, energy density, rapid charging, high wattage discharge, these are all important. I'm going to stay hopeful.

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  • [–] 1 point 3 years ago (2 children)

    The sodium 18650s are available on Alibaba for a few weeks :)

    And for re-use my "extra" batteries are all interchangeable or able to be put to use elsewhere when the bike isn't in use. ( I've been considering an inverter for power outages).

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  • [–] 2 points 3 years ago (1 child)

    Btw what are sodium 18650s? A new safer version?

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  • [–] 2 points 3 years ago (1 child)

    Cheaper ( like 1/3? ), last longer ( more discharge /charge cycles ), can safely drain to 0.

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  • [–] 1 point 3 years ago

    I mean you personally may be able to reuse them, but most people just throw their old escooter (or whatever) away when they get a new one, or at best resell it or donate it.

    Image how cheap a new ebike could be if you only had to swap the batteries from your old one

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