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ott

ott@sh.itjust.works
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The vast majority of cell phones use a single-cell Li-Ion battery, so their capacities can be directly compared using mAh. Laptops almost always contain multi-cell Li-Ion batteries, so their capacity cannot be directly compared using mAh (e.g. a 4S battery rated for 2500mAh has more energy than a 3S battery rated for 3000mAh).

So why don’t we use Wh for phones too? Simply because manufacturers would rather advertise a battery size of five thousand mAh (wow, so much capacity!) instead of 19 Wh.

The same issue happens with portable USB battery packs - they’re all advertised in mAh even though they use a wide variety of chemistries and cell configurations internally. What manufacturers do is take the total Wh of the pack and convert it back to the equivalent mAh of a single-cell Li-Ion. It’s annoying, and I really wish they would just use Wh directly.

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Can someone explain to me why they might have gone with this strange pricing model instead of the very simple revenue sharing model that Epic uses?

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idk why, but I dug around YouTube for an hour or so to try and find that alarm for you. I stumbled across one that’s so close to your description, though it’s from a BlackBerry, not a Samsung:

https://youtu.be/bOBaJHw36Dc

Is this the one?

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The main problem with lithium ion battery fires is that the reaction is self-oxidizing, so you can’t put it out by just smothering it. You actually need to cool them down enough so that they don’t re-ignite. Plus, once they’re damaged, even if you do cool them down enough they’re much more likely to short and re-ignite themselves again anyway.

Consider the “fire triangle” - fire needs three things: fuel, oxygen, and heat. With, for example, gasoline fires you can take away either oxygen OR heat to extinguish them, but with lithium-ion battery fires you have to take away the heat to extinguish them.

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“Based” is typically used to describe someone who says/does something without caring if they’ll be judged for it. Most commonly, it’s shorthand for “That’s a controversial opinion and you are bold for saying it, but I agree with you.” It turns the previous sentence into an adjective, which is a little weird but it makes sense eventually.

So if I had to choose a single word as a synonym, I would say “Bold”.

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I’m probably going to end up back on Reddit to some extent, but I think Lemmy will stay in my rotation of stuff I open when I’m bored. Or until they inevitably kill old.reddit.com, then I’ll be outta there for good…

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