this post was submitted on 23 Sep 2024
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Everyone knows that electric vehicles are supposed to be better for the planet than gas cars. That's the driving reason behind a global effort to transition toward batteries.

But what about the harms caused by mining for battery minerals? And coal-fired power plants for the electricity to charge the cars? And battery waste? Is it really true that EVs are better?

The answer is yes. But Americans are growing less convinced.

The net benefits of EVs have been frequently fact-checked, including by NPR. "No technology is perfect, but the electric vehicles are going to offer a significant benefit as compared to the internal combustion engine vehicles," Jessika Trancik, a professor at the Massachusetts Institute of Technology, told NPR this spring.

It's important to ask these questions about EVs' hidden costs, Trancik says. But they have been answered "exhaustively"


her word


and a widerange of organizations have confirmed that EVs still beat gas.

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[–] TheObviousSolution@lemm.ee 18 points 3 months ago* (last edited 3 months ago) (2 children)

Over the longterm, and they also require a lot less maintenance because they don't have to deal with mini-explosions from combustion generating excess heat and stress. The problem is in the battery, and the industry hasn't even scratched the surface for solutions.

I see trucks carrying butane tanks all the time, where are the trucks carrying EV battery replacements? There aren't because the industry wants to charge extra for fixed installation ones depending on capacity and charging capacity and there is absolutely no profit incentive that offsets other losses to standardize battery systems in a way they can be easily extensible or replaceable.

[–] pumpkinseedoil@sh.itjust.works 6 points 3 months ago (1 children)

I see trucks carrying butane tanks all the time

That's not the equivalent to battery replacements but to the power grid, which of course is yet another win for EV (since clearly distributing the energy source for vehicles over the power grid is safer and more environmentally friendly than needing huge trucks to carry it).

(I'd say battery replacements are closest to motor replacements in gas cars in terms of costs and effort. What about the environmental impact? -> That's why it's so costly. To mitigate environmental impact.)

[–] TheObviousSolution@lemm.ee -4 points 3 months ago (2 children)

Battery replacements really are not difficult, I'd seriously recommend not imagining obstacles where there are not.

Without special installations, charging takes several hours instead of a quicker battery swap (which you could take with you as extra weight). DC chargers cannot even be installed at how home due to their requirement. Swappable batteries are possible and would make EV cars adaptable to new and different battery technology, they are just not designed that way.

Some, like the XBus, talked about allowing it, and it is perfectly possible, it just isn't going to come out of traditional car manufacturers who had to be dragged to develop anything EV or manufacturers like Tesla who want to make range a subscription feature. Let's not even go into EV range extension trailer systems, which would be as effortless as swapping trailers.

[–] Zaderade@lemmy.world 9 points 3 months ago (1 children)

So, just so you know, the average EV battery weighs 1000lbs, and some all the way up to 2000lbs in something like the EV hummer. (Unnecessary I know). The cost to have a battery in an EV replaced currently sits around $5000 to $15000 off of warranty. So there are definitely obstacles. Along with letting the general public fry themselves trying to hook up a 400v battery. You're not dealing with AA batteries. Battery technology is far away from something able to swap out yourself with the ease you may be thinking of.

[–] bradorsomething@ttrpg.network 4 points 3 months ago (1 children)

This is already the present; we have power tools that already swap batteries on the fly. The problem is more complex as you add batteries and charge, but not insurmountable. I see the first application in truck fleets.

[–] TheObviousSolution@lemm.ee 3 points 3 months ago

The problem is that in those cases it is still a proprietary market.

[–] Kbobabob@lemmy.world 4 points 3 months ago (1 children)

Where are the trucks carrying the replacement petrol tanks for ICE cars?

[–] TheObviousSolution@lemm.ee 1 points 3 months ago* (last edited 3 months ago)

You can get them at Amazon: https://www.amazon.com/s?k=gas+tank

You aren't making a point if you are trying to equate the distribution network for gas, which is so ubiquitous that there is no need for the sort of trucks that distribute butane tanks to EV batteries, which require specialized facilities for fast charging, which also deteriorates batteries faster, or otherwise take half a day of charging. EV battery swapping bans already exist for things like scooter rentals.

There are already standarized sizes, voltages, and ports using in autocaravans which could be connected in series ideally through BMS to provide the voltages EV cars would need and would even be simpler through already prepped trailer systems. Four 96V batteries (can go up to six) in series connected safely through Andersen connectors would be enough for a basic EV car, that's less than 30kg LiFePO4 each, making it swappable on the spot, less dangerous than lithium, and open to a large market of providers.