Burren
Ahn'Qiraj Raider
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Obviously it isn’t. But other cars of similar speed don’t experience brake fade because they have awesome brakes.How is brake fade some uniquely Tesla issue?
Obviously it isn’t. But other cars of similar speed don’t experience brake fade because they have awesome brakes.How is brake fade some uniquely Tesla issue?
The idea of swapping sounds cool, but adds a good bit of complexity/cost to BOM and manufacturing.Ahh I see what you are saying, but yeah it looks like 25-85% (well i think its 20-80% on teslas?) is the sweet spot for getting the most cycles while also getting the most capacity over time. Every example where they charge the battery to 100% kills the battery's capacity super fast so I don't think the "topping off" is recommended for any batteries? They also do not recommend using high voltage chargers like superchargers, lol.
Obviously in a perfect world you would only use 10% of your car's battery to drive 24 miles a day or 20 minutes total, starting at 75% and driving it to 65%, and then slow trickle charge it for the other 23 hours back up to 75% and then stopping. That is the optimal conditions for owning an EV.
Which is one of the reasons why EVs are so fucking gay.
Now if Elon would have went with the Nio solution that china is using instead of superchargers then I could see them being viable. instead of stopping to supercharge your car (or worse regular charge for many many hours) you pull into an automated garage that just swaps the battery for you. You pay a subscription which gives you x amount of battery swaps per month, subscription level depending on how much you drive. You can of course charge the battery yourself if you like but there's no need to (most places in china you dont have a garage so can't really charge at home) You don't actually own the battery you are basically renting it. The automated battery swap takes 3 minutes and you dont even have to get out of your car, it's like going through an automated car wash.
They also claim to have broke 1k km on a single charge on their batteries, which is like 621 miles.
All the problems from the battery, life cycles, having to charge them, etc all those burdens are moved from the car owner to the OEM instead.
There were studies a few years ago, not directly from manufacturers, that stress tested the various batteries and charge rates, but I don't remember where they were from anymore.
Here is the closest I could find right now, showing the lower you discharge the battery before recharging, the shorter the overall battery life. With an inverse effect of charging it from 80-100 also decreasing battery life. Still, repeated cycles of 50% - 100% last longer than 25% - 100%, even if that doesn't give the most optimal battery life/power:
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Now if Elon would have went with the Nio solution that china is using instead of superchargers then I could see them being viable. instead of stopping to supercharge your car (or worse regular charge for many many hours) you pull into an automated garage that just swaps the battery for you. You pay a subscription which gives you x amount of battery swaps per month, subscription level depending on how much you drive. You can of course charge the battery yourself if you like but there's no need to (most places in china you dont have a garage so can't really charge at home) You don't actually own the battery you are basically renting it. The automated battery swap takes 3 minutes and you dont even have to get out of your car, it's like going through an automated car wash.
They also claim to have broke 1k km on a single charge on their batteries, which is like 621 miles.
All the problems from the battery, life cycles, having to charge them, etc all those burdens are moved from the car owner to the OEM instead.
I'd guess most people are charging closer to 3 times per week.This is the reason hybrids are far worse for battery longevity than full EVs, the small battery gets run down 100-0 twice a day for many typical commutes where a full EV with far more range only does a single 80-20% cycle.
90% capacity remaining after 3000 cycles is a nothingburger. For a EV typical use case (charge at home 5 days a week) that's 11.5 years. If you go hybrid and charge at home, charge at office 5 days a week you hit that 90% after 1000 cycles which is only 2 years of twice a day charging.
Battery swap tech just moves the problem to whoever is renting you the battery. Just like leasing a car won't make the maintenance/depreciation cost go away, you just pay for it indirectly.
Yeah and this is where they fucked up.Tesla was doing this back in 2013, but scrapped the idea.
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Tesla shuts down battery swap program in favor of Superchargers, for now
Tesla’s battery swap station near the Harris Ranch Supercharger station in Coalinga, CA seems to have been shut down, at least for now. What started out as a company vision to recharge Tesla vehicles in the same amount of time, if not quicker, as refueling a gas vehicle, turned into a pilot...www.teslarati.com
It's an interesting concept, but it has some trade-offs that they didn't find worth pursuing. I know, personally, I wouldn't be a huge fan of permanently having a car payment, which is Nio's model with the battery subscription. Tesla tried to get around that where your vehicle's battery was set aside and you swapped it back when you returned from your trip or you paid some fee to keep the newly swapped battery. Another trade off is the pack has to be standalone. Most OEMs, Tesla included, are now making the pack a stressed member in the frame for weight savings. You could still come up with a way to swap things, but it's a lot trickier since now you're potentially bolting seats, trim, harnesses, etc directly to the battery. All the extra mass from a standalone pack adds extra cost and reduces range. Most people are pretty rarely doing long road trips, so, the swapping isn't going to be a common enough occurrence to justify the concept vs the alternatives.
Are people worried that much about the batteries? That's the toughest part of the car. Its everything else that will wear out.I honestly feel like this whole battery degradation thing is overblown. I've owned Tesla for years now, and the amount of battery loss is negligible, like 10-20 miles from new.
Tesla states that battery degradation after 200,000 miles is about 12-15%, depending on model. Think about that.....how many cars have you driven 200,000 miles? Let's say the range on a Tesla is 200 miles, to make the math easy.....well, after driving 200k miles, which would probably take you close to a decade, your range would still be around 170 miles. Still a completely usable car for every day driving.
Here's a link to a Tesla that's over 400,000 miles on it's original battery:
This Tesla Model S Has 430,000 Miles On The Original Battery And Motors
Are people worried that much about the batteries? That's the toughest part of the car. Its everything else that will wear out.
I've had Teslas and driven them mostly exclusively since 2016... zero battery issues of any kind. My first Model S my oldest son is now driving... it has like 95k miles and still charges to ~220 miles of range where brand new it was 256 or something.Are people worried that much about the batteries? That's the toughest part of the car. Its everything else that will wear out.
Power units...second hand...are cheap, too. Second hand low mile Plaids are a steal. Someone on a budget could grab one, put a stout brake system in it and have on hell of a car for less than the price of a new base model 5L Mustang.I was just going by the past 2 pages on this thread with people discussing about batteries, battery life, and how to optimize battery life. When I feel like there is no need to worry about optimization since the battery lasts a long time anyways.
As far as everything else wearing out.....isn't that true of any car? At least with EVs you don't have oil components, probably a lot less rubber tubing, etc. There are significantly fewer components in an EV compared to an ICE, which means fewer parts that will need repair/replacing in the future. The one thing that EVs go through faster though, in my experience, is tires.
Halfway across Europe is like 1/10th of a road trip!It's people buying into horror stories. I was once worried about some of that stuff too. First EV does feel like a jump into the deep end where you're not sure how things are going to work out.
I'm nearly two years into EV ownership now and it's been just fine. Range anxiety is a good term because it turns out it really is more a paralyzing fear of the unknown than a real world problem. Driven my BMW i3 (which is a very dated car now when it comes to range) halfway across Europe. Did it take more planning than using a gasoline car? Yes. But nothing you can't handle with all the free resources available on the internet.
jesus fuck this is real