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This is PR mastery. Nowhere in the release does Tesla refute that owners have "bricked" their batteries. Nowhere in the release do they say that the battery c
by URSpider94 15y ago
This is PR mastery.
Nowhere in the release does Tesla refute that owners have "bricked" their batteries. Nowhere in the release do they say that the battery can not be bricked by leaving it for a long period without a recharge. All they say is that it would take a period of weeks for a Tesla roadster to reach 0% charge, and that the Model S has battery disconnect technology that can extend this to several months. They also point out that the car will provide increasingly strenuous warnings to plug it in (which, no matter how loud they are, would be hard to hear from across the country, if you've left it in an airport parking lot).
If it were true that a Tesla battery pack couldn't be destroyed by letting it fully discharge, or that it had never happened, then they would have mentioned it in the release. In fact, they take the opposite tack, re-emphasizing near the top of the document that users should always plug the car in when parked.
Don't get me wrong, I'm still very enamored by Teslas, and I don't think that this is any different than the owner of a gas-powered car letting it run out of oil and seizing the engine -- it's neglect. If you don't get it by now, Tesla owners, you need to plug in your cars.
- fijal 15y ago"mastery" is not a very correct word in my opinion. What they do is they provide absolutely 0 information, while still calling the blog a rumor. I was very skeptical about the blog post up until now, when tesla essentially agreed to all it's claims, by not refuting any. TL;DR; version of the blog: "Yes, it's true, we charge a lot of money for forgetting to plug in your tesla, don't do that or you'll regret".
- ChuckMcM 15y agoThis was my take away as well but the mastery part is where it sounds like they are refuting something. Basically, having read that post three times, I conclude that if you ignore the warnings and let your battery pack completely discharge your car will be unusable, aka a 'brick'. Which completely validates the 'rogue bloggers' point that it is a 'known issue' and one to be aware of. I found the 'no oil' comparison to be weak. Sure if you run your gasoline engine vehicle with no oil it will likely seize up and require an engine block replacement. However, you can leave a gasoline powered car in a barn for 20 years and then re-discover it, fill up all the proper fluids and run it. (assuming it was in running condition when it was stored). You won't have to replace the engine. The part that is missing from the Tesla response is, if your car is in this state (fully discharged), what can be done. Is there a way to 'reboot' the car? And if so what is the procedure? Can anyone do it or only the factory? And why? If the batteries become disconnected does that also brick your car? Or can you just re-attach them ? Why doesn't the Tesla vehicle have a 'full power down' state for storage?
- nuclear_eclipse 15y ago"Why doesn't the Tesla vehicle have a 'full power down' state for storage?" I assume this is because of the nature of Li-ion batteries. Even if you aren't pulling any current from the battery, they will still discharge over time, and eventually go through a chemical process rendering them unusable and/or dangerous. Having a "long-term storage" mode for the vehicle would only serve to make it more likely to happen by lulling owners into a false sense of security. Better to simply reinforce the need to constantly keep the vehicle in a charged-or-charging state.
- ChuckMcM 15y agoI would like to understand where you get that information. I've had a lot of experience with rechargeable batteries over the years in doing robotics, and a variety of chemical makeups. My experience is that the "self discharge" function is the result of the anions managing to convert by one means or another not related to electron injection at the anode. The mechanisms that enable this are things like electron tunneling which are probablistic, such that the discharge curve is asymptotic toward zero charge while never achieving it. That sort of discharge does not lead to the development of dendrites in the battery which would create shorts or other hazards to recharging. My understanding is that because the Tesla has a constant drain on the battery it can drive the battery to zero. It would be interesting to know the answer to the question can you just disconnect the battery for storage. Not willing to invest $100,000 to find out :-)
- nuclear_eclipse 15y agohttp://en.wikipedia.org/wiki/Lithium-ion_battery#Safety_requirements http://en.wikipedia.org/wiki/Lithium-ion_battery#Safety_requ...
- URSpider94 15y agoHere's a nice graphical rendition of what can happen. The undervoltage situations are not driven by current travelling outside the cell, they can happen even if the cell voltage drops by self-discharge. http://www.mpoweruk.com/lithium_failures.htm http://www.mpoweruk.com/lithium_failures.htm
- redthrowaway 15y agoIt's really no different than early fuel-injected cars being damaged by running out of gas. The solution? Don't run out of fucking gas. That didn't stop fuel injection from becoming the dominant technology, and neither will this halt the rise of EVs.
- larrydag 15y agoI would think its a little different since the infrastructure was already in place for gasoline. There isn't the same infrastructure nation-wide for electric vehicles.
- ssharp 15y agoI'd say it was significantly worse under gasoline. Then, if you ran out of gas, the car was bricked. Tesla is saying that even if you drain your battery driving, it would still take 30 days of failing to charge it to brick it. While the infrastructure for just "filling up real quick" may not exist for electric cars, the infrastructure certainly exists at a person's home, otherwise, they wouldn't buy an electric car. I think there would be a much more compelling case for this if electric cars were being mass-adopted, and the education for maintaining them was poor. Neither is the case here. Electric cars are still largely in the early adopters phase, and Tesla is telling people to not leave their car unplugged for months on end. Much ado about nothing.
- nuclear_eclipse 15y agoRunning out of gas doesn't "brick" a car. You can either push or tow it to a gas station, or you can deliver more fuel to it, and it will continue working without missing a beat. Letting a Li-ion battery discharge completely damages the battery, which means you have to replace the entire battery, not just fill it back up. This is physics; Tesla can't change the laws of chemical reactions.
- tfb 15y agoWhat about not keeping enough fresh oil? I believe keeping a minimum charge on an EV is analogous to the common knowledge of maintaining a gas-powered vehicle's oil. The problem is that people don't have experience with EVs. I'm sure in the early days of gas-powered vehicles, plenty of engines seized up because people were unaware they had to change the oil and keep it at a certain level. And it certainly still happens on occasion. See my other post in this submission: http://news.ycombinator.com/item?id=3630466 http://news.ycombinator.com/item?id=3630466
- vidarh 15y ago> (which, no matter how loud they are, would be hard to hear from across the country, if you've left it in an airport parking lot). Which is presumably why they're doing this: > Starting with Roadster 2.0, owners can also elect for their car to contact Tesla headquarters once the state of charge falls below a specified level, and we can then contact the owner.
- lamnk 15y agoWell, why don't they just let the car contact the owner directly then?
- Avenger42 15y agoProbably easier to have one non-changeable email/phone number in the firmware than have to modify/update it for every person they sell the car to. Plus, it means the company gets to have a personal connection to all of their users, and when you're talking about a $100k buy-in, that might be the sort of attention a lot of these owners are expecting.
- droithomme 15y agoSame reason Apple doesn't let you copy individual files from your iPad to your iMac, you have to let Apple servers be the intermediary.
- larrys 15y agoAgree with the mastery. And the release doesn't reference the actual blogger which is this: http://theunderstatement.com/post/18030062041/its-a-brick-tesla-motors-devastating-design#fn:2 http://theunderstatement.com/post/18030062041/its-a-brick-te... They reference an ad hominem of sorts about the "rumour" at this link: http://green.autoblog.com/2012/02/23/tesla-bricked-battery-story-may-have-a-short-circuit/ http://green.autoblog.com/2012/02/23/tesla-bricked-battery-s... which has the title: "Tesla bricked battery story may have a short circuit"
- mansolo 15y agoIf it is PR mastery (not convinced) it's in the tone of the writing. It reminds me of a notice of late payment I received from The Economist magazine some years back. It was so darn polite and diplomatic, I kept it in a shoebox ever since. Now, whenever there's an outstanding payment issue with a client, I read the letter for inspiration.
- jskopek 15y agoI'd love to read that letter! Any chance you could scan it or type it up?
- dupe 15y agoHey, sorry it took me so long. HN was giving me a "you're submitting too fast" error for some unknown reason. Had to open up another account. Anyway, here`s the link: http://www.picamatic.com/view/8244745_economist-invoice/ http://www.picamatic.com/view/8244745_economist-invoice/
- cyrus_ 15y agoThis is almost PR mastery. PR mastery would be saying that the blogger is correct before listing the facts about how insanely long you have to leave the car unplugged for the battery to become inoperable, and detailing what steps Tesla is taking to make this less of an issue (i.e. making it more prominent in their manuals, working on "deeper" sleep, etc.) As it stands, this makes me think that Tesla likes to play with words to dance around hard truths. They also didn't mention the privacy implications of them being able to remotely track your car by GPS, which is a bit worrisome.
- hyperbovine 15y agoSaying "the blogger is correct" at the top of the post would cause a significant portion of the readers to close the tab and never think about buying a Tesla again. To me that's a PR fail. Also, nowhere in the post do they mention GPS--only that the car (optionally) phones home its charge level. As best I can make out that's an unfounded rumor based on a single incident.
- deleted 15y ago[deleted]
- vannevar 15y agoReal PR mastery would be to issue a modification to the warranty to include this condition within X years of owning the vehicle and be done with it. If it really is rare, it will cost them a lot less to cover it than the PR costs of fighting bad press every time it pops up.
- cuu508 15y agoSuch condition would be tempting to abuse. Warranty expires in 6 months--drive to 0%, wait a month and call dealer. Instead manufacturer could make it very clear in on webpages, in owner manuals, PR materials etc. the importance of keeping batteries charged. Make it common knowledge. Then they would be morally right to treat bricked batteries same as running with no oil or with flat tires.
- jilebedev 15y ago> Don't get me wrong, I'm still very enamored by Teslas, and I don't think that this is any different than the owner of a gas-powered car letting it run out of oil and seizing the engine Unfortunately, that's exactly the issue: many uninformed people are getting people like you wrong simply because they lack perspective on the Tesla "bricking" issue. Electrical cars are a new technology and people don't have the perspective to shrug off serious but very unlikely problems. This is why Tesla's post isn't simply "PR bullshit" -- it provides context for the discussion and perspective. As others have pointed out, perspective exists with ICE vehicles today: we know that there are potential bricking issues, but we keep perspective and shrug them off because we understand how unlikely they are. It's fair to over-focus on the Tesla bricking issue, but it's more fair to place this discussion in a context: how likely is this problem to occur, and what can be done to prevent it, to spot it before it occurs.
- jwr 15y agoRight. It's well-executed PR, but if you read carefully, you will note that if you have an older model, discharge it to 10-20% and leave it at the airport for 2-3 weeks, you might indeed end up with dead batteries. Which I think is entirely reasonable and something I would expect.
- xixi77 15y agoIMO, this was horrible, horrible PR. They basically confirmed all allegations, while still coming out as snotty jerks (talking about "unfounded rumors"?!). Linking the ad-hominem attack was just low. They are in a difficult situation, as the problem is real, and difficult to address. In fact they are clearly doing a lot trying to address it, which is to their credit -- now if instead of downplaying it, they presented it clearly, and focused on what they are doing and planning to do, and thought about more solutions, it would do them much good. And solutions don't have to be just technical -- offering insurance (even if high-deductible) would do quite a bit to calm some fears, as would the GPS based service if explained and offered right. Either way, without some kind of fix for such problems, they will never see any adoption beyond the "toys for the rich" market.
- pwpwp 15y agoMy thoughts exactly. Very bad response, indeed.
- wisty 15y agoTotally agree. Good PR lets the bad news out all at once, and the good news out in drips. Day 1: We are very sorry that a handful of our thousands of users has had battery problems. It is true that a battery can be irreversibly damaged by a "deep discharge". It has not been covered by our bumper-to-bumper warrantee, as it is considered to be a misuse. This is only possible if a car is not being used on a regular basis, and provided our cars are left with a 50% charge they can last for months without a problem. Please do not leave your Tesla with a low charge if you will be away for a long period of time. This should not be a problem for the vast majority of our customers, but some may need to take special precautions, if they will not be driving their car for a long period of time. Day 2: Compare old Tesla to new Tesla. Note how long the new Tesla can last on 50%. Note that all cars have problems (oil, radiators, fan belts); and that it takes time for the new rules to sink in. Note that only a small handful of customers have been bitten, despite it being a completely new system. Note how many people have their engines get cooked, even after 100 years of oil burning cars. Note that electricity is fundamentally simpler, and easier to maintain, and that will only get better with more design work, and as people become accustomed to it. Then wait a while, and find (or make) some good news. Free replacements for the handful of effected customers? The more time people spend reading and arguing over the fine points of PR spin, the more time your name is dragged through the mud. Get it over with quickly.
- vacri 15y agoThe two-month period to reach 50% has nothing to do with the original poster's issues. He said that in unusual circumstances - driving it heavily, then not charging it for a short time - was sufficient to brick it. If it only takes two months for a 50% charge to drain, how long does it take a 10% charge to drain?
- mkramlich 15y ago> Nowhere in the release do they say that the battery can not be bricked by leaving it for a long period without a recharge. I happen to have first-hand experience with a gas-powered Porsche that was left parked for so long (years), with no starts, that the engine eventually became effectively "bricked", and had to be written off. And I had to fork out 1000's of dollars on engine repair (attempts) to even reach the point of deciding it had to be written off. This is with a gas-powered engine, a traditional car. So there is precedent where a car owner can misuse and/or fail to maintain the vehicle properly per the manufacturer's guidelines, and it becomes bricked. This is not a new kind of problem introduced by Tesla.