Recent comments in /f/explainlikeimfive

myislanduniverse t1_j25x21c wrote

While you're entirely correct, the component you've listed is also an example of one intended to last the "life of the car." People in this thread don't mean something different when they say "life of the car" when they're taking about the battery vs the engine. You can keep both vehicles running for much longer by replacing components that have exceeded their serviceable life.

But an EV battery is intended to last the factory "life of the vehicle" in the same ways (and this could be tautological).

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maveric_gamer t1_j25wvef wrote

So I think that this has mostly been said across the replies thus far but to compile things in one place:

First there is the question of terminology - a "loan shark" is a term used primarily to describe a criminal moneylender who's running a scam - they'll lend you money, but then any money you pay back will go towards absurdly high interest rates, and not pay down the loan balance; and if you fail to pay, they get violent (or have "associates" who get violent on their behalf).

However, because humans love hyperbole, the term "loan shark" may be used to describe payday loan lenders - essentially the last legal resort for people who need cash - the idea is that if you borrow money from them, you don't need a credit check or anything like that, and they give you some high-ish percentage in a lump sum of what you would get on your next payday, in return for your next paycheck in its entirety (ex: if you make $500 per paycheck, you might get anywhere from $450-480 from a payday lender) - the problem comes up when you can't pay your whole paycheck to them on time, and they let you pay it off over a longer term. The way these usually end up structured, you could pay thousands or tens of thousands in little $15 payments over years for that $450 you borrowed, if you don't quickly pay off the principle. And if you default on this loan, a lot of places tend to employ debt collectors who are a bit less keen to follow the law than you'd hope, and will make it seem, at least, like they might actually commit violence or do something within the law to make your life miserable.

The reasons that this is bad are many, but the main one is that if you are in a situation where you need this type of loan, it is almost certainly because you need some other sort of help instead, but the money issue looks like the biggest issue. Even if it is a strict money issue, this is a bandaid on a bullet wound and you need financial planning help.

The fact is that even the legal companies are predatory - the real money in payday lending is in those absurd APRs, and knowing that most people feel an obligation to pay their debts even if those terms are grossly unfair; people tend to not know their rights, tend to be pretty bad at math that involves percentages, and all of this helps to rig the game in their favor.

Now, the very tiny "but" - for the people who have absolutely no other option, this can be the lesser of two really shitty outcomes. And this is one thing I think people get wrong talking about them - people aren't stupid, they know it's a bad deal most of the time, but it's a less punishing option than defaulting on a credit card or car note or something else like that.

But by and large, if you have any other option, you should take it over a payday loan. Borrow from friends and family, see if you can take out a personal loan from the bank, ask for an advance from your job, angle for a raise, take on a part time second job for a while to pay off any of the above and even things out, skip a few meals. These will all hurt much less in the long run than the giant barbed financial probe that are these predatory loans.

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maveric_gamer t1_j25w8p1 wrote

That's bad, but it's not really a spiral if you do things like keep a job and make sure that your monthly payments for everything are lower than your income each month. The problem with a lot of these loans is that they're structured to almost never pay off the principle of the loan, and the interest keeps compounding.

The really bad legal examples IMO are student loans - they're huge loans that even if you get your degree you're not likely to be able to afford a payment that would pay them off in a reasonable time, and so that's why you end up with stories like "I borrowed $30,000 to go to college, and after 10 years of $500/month payments, I now only owe $47,000" (I'm making up numbers for the quote but real examples exist for this)

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Ball-Realistic t1_j25u6rh wrote

Internal Intelligence is used to keep domestic threats at bay - could be a separatist movement, domestic terror plots or anything that happens internally that can destabilise the govt.

External intelligence is to keep the country safer from external threats like another country or factions posing as a threat to the country’s citizens or monitoring the global events ans Happenings and assessing if they are in tandem with the country’s international interests.

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mynewaccount4567 t1_j25qpge wrote

One point to make is that even with a modular battery design you probably wouldn’t want to make short term battery changes to save weight for less range of not needed. The batteries are a lot of the cars weight and a lot of systems in the car are designed for a specific weight. It would be a lot harder to design a suspension system that could handle the weight range of everything from a 40 mile battery with single rider commuter to 350 mile battery with a family of five and luggage in the trunk.

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permalink_save t1_j25jzkx wrote

I mean, it's not like the timing chain belt and we throw the car away, things are generally serviceable and if it's a choice of 2k to fix it vs 20k to get a new one, not just cars but things in general, why wouldn't you just fix it? People are way too eager to get a new car when theirs starts fucking up but look at other countries driving cars with like 300k miles on them that we traded as "end of their life" at 120k. We're just being wasteful at that point.

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Kimorin t1_j25iray wrote

adding on to the other great answers here, packs are made with cells, thousands of cells, arranged in modules... usually the modules are wired in parallel with series connection within the module... to reach the voltage and amperage needed...

you can absolutely swap out modules or even cells if you want, but the cost of doing so is pretty high, usually its easier and cheaper to just swap out whole pack due to the labor cost involved... the swapped out pack can be disassembled at factory and remanufactured into refurbished packs with all the checks and validations needed.

swapping out individual modules and cells comes with the issue of cell imbalance... have you heard of people telling you to not mix new and old batteries in your TV remote? kinda the same thing here but on a larger scale... mixing in new cells with older cells could cause voltage imbalances between the cells due to new cells being able to discharge/charge faster than older cells and also take in or output more power than older cells. this could cause problems, like aging the other modules faster than it would otherwise and/or cause decrease in range.

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greatvaluemeeseeks t1_j25e83m wrote

A few companies do this with Prius batteries and sell them as refurbished batteries. The cells aren't too hard to disassemble and a dead cell is pretty easy to isolate. A refurbished battery is much cheaper than a brand new one from Toyota, but the batteries don't last very long before another cell eventually dies since they probably have 150k+ miles on them and Toyota, in my opinion, provided inadequate cooling for them and should have told consumers the battery's cooling system required regular maintenance.

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TheRunningMD OP t1_j25cv92 wrote

I think you are the exception. Some places might have very light rainfall during summer, some places not a drop, but usually most rain is in the colder months.

I honestly haven’t looked at statistics, but I’ve traveled a lot and from my experience unless you are close to the equator where it rains year round (like Hawaii), cold months have way more precipitation.

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keeltheone t1_j25cd2q wrote

>In most places it rains mostly in winter, a little bit in fall and spring and no rain in summer.

Is this actually true?

I've lived in Michigan, US most of my life and we definitely have rain in summer, spring, fall and rain, sleet, hail and snow during winter.

My mind is blown that this might be the exception rather than the rule for "most places" (I do understand that some places rarely experience snow, and some are deserts, rain forests, etc.)

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LochFarquar t1_j25bpkz wrote

Most precipitation comes as part of large weather patterns that move over thousands of miles (although this is less true in hot, humid places that create enough of their own moisture for localized storms). Generally storms start as big masses of warm, wet air over an ocean and then blow across land. Seasonal weather patterns will affect which times of year a particular location gets more of these warm, wet air masses bringing large amounts of rain.

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