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Joined 2 years ago
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Cake day: June 11th, 2023

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  • Quite. Unfortunately, most devices that use modern batteries have the battery sealed inside with an onboard charging system, such that when the battery wears out, the device becomes e-waste. There are many standard, or semistandard sizes of cylindrical lithium-ion cells, and devices could be designed for field-replaceable versions, but the only product category where it’s common is high-performance flashlights.

    Even in common consumer form factors, there have been improvements. Here’s a test of one of the best alkaline AAs. Note how the capacity drops as the load increases - by a factor of about six at 3 Amps. Contrast the Eneloop NiMH rechargeable, which has less capacity under light load, but barely loses any at 3 Amps and can handle 10 Amps while retaining most of its capacity.

    The best Li-ions in a form factor similar to AA, called 14500 have even better performance with over 5 Watt-hours of energy, but devices have to be designed for them since the voltage is much higher; putting one in most devices designed for AA will result in damage, if not fire.


  • We know reddit used bots at the beginning to generate activity to make the site look popular.

    That’s not quite it. The founders made a few of throwaway accounts and posted a bunch of links that exemplified what they wanted people to post. It was fake activity, but I’m pretty sure it wasn’t automated. It was maybe 50 posts and I don’t think it was a bad thing to do.






  • Zak@lemmy.worldtoAsklemmy@lemmy.mlDo you believe in free will?
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    3 days ago

    Yes. I could talk about quantum indeterminacy as a scientific argument for it, but fundamentally, I believe in it because I want to[1]. I don’t like the idea of being a deterministic machine with a fate I can’t influence with active choices. It’s not provable either way with the current state of science, so I choose to believe my preferred option is the correct one.

    [1] Of course such a statement presumes free will. I think I want to, anyway.



  • It is not impolite to say something like “I’m married, and even if I wasn’t, you’re underage. We are not dating, and we are not going to date.”

    She’s being very inappropriate in this situation. That isn’t really meant to be a harsh judgment of her because she’s a kid and kids shouldn’t be expected to how to behave yet, especially when they’re very new to experiencing feelings of sexual or romantic attraction. Shutting her down firmly (but without any cruelty) will help her learn.




  • From what i understand, this works because there are multiple batteries charging at the same time?

    That shouldn’t make a big difference in charge speed because it doesn’t change the ratio between capacity and input power. The difference is likely the silicon anode batteries Krudler mentioned; they’re not as easily damaged by fast charge rates as the graphite anodes used in most Li-ion batteries.