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Re:Federal safety agency launches probe of Tesla battery fires by imglorp on Wednesday November 27, 2019 @11:10AM (#21649065)
Two fires were mentioned in OP, 2012-2019. Even if it's 200 that get surfaced, look at the alternative: about 180,000 highway vehicle fires per year in the US. Having a compartment full of leaky flammable fluids and hot exhaust components might tend to do that on occasion.

The bigger story might be the risk/reward tradeoff of those few battery fires vs everyone's charge capacity.

source: https://www.statista.com/statistics/377006/nmber-of-us-highw...

Re:Federal safety agency launches probe of Tesla battery fires by Jamwinner on Wednesday November 27, 2019 @11:27AM (#21649250)
I have put out even large car fires with a small extinguisher. A lithium fire takes hours and thousands of gallons of water to subside. There is also the possible issue of rapid exit when electrics are dead. While the chance is clearly lower, the risk is higher to you should it occur. Currently there is no good accepted methodology for firefighters and first responders beyond 'more water' or 'let it burn'. That is a real problem.
Re:Federal safety agency launches probe of Tesla battery fires by jhayward on Wednesday November 27, 2019 @02:37PM (#21651211)
> A lithium fire takes hours and thousands of gallons of water to subside.

Tesla battery fires are not lithium metal fires. They are primarily organic solvent fires which evolve flammable gasses when overheated.

Re:Federal safety agency launches probe of Tesla battery fires by maratd on Wednesday November 27, 2019 @12:43PM (#21650063)
> There is also the possible issue of rapid exit when electrics are dead.

This is not an issue with Tesla design, all of that is handled by a traditional car battery that every car has, not the main battery. Those batteries are completely separate and in different parts of the car, I think specifically because of this safety issue.

Re:Federal safety agency launches probe of Tesla battery fires by Doxin on Thursday November 28, 2019 @10:42AM (#21658048)
If anything teslas are safer in this department because of the temperature sensors in the battery pack. There's several stories out there of battery fires in teslas where the fire only occurred after the car warned the driver, and after all the participants got out.

On the other hand you're unlikely to notice a fire in a gasoline car before there's smoke or fire.

Re:Federal safety agency launches probe of Tesla battery fires by Smoosh on Wednesday November 27, 2019 @04:35PM (#21652348)
I believe that in Teslas, the main battery pack is for motive power, while the vehicle's electrical system (including doors and windows) is powered from a standard 12V car battery which is kept charged from the main battery pack. Thus egress would be the same as in any other vehicle in a crash/fire.
Re:Federal safety agency launches probe of Tesla battery fires by jolmg on Wednesday November 27, 2019 @01:48PM (#21650716)
> A lithium fire takes hours and thousands of gallons of water to subside

Doesn't lithium react violently with water? Looking online, lithium creates hydrogen gas on contact with water. That seems like adding fuel to the fire. Makes sense that it takes a lot to extinguish a fire with fuel.

Re:Federal safety agency launches probe of Tesla battery fires by bananabreakfast on Wednesday November 27, 2019 @03:53PM (#21652010)
A lithium battery is made of lithium compounds not raw lithium. Expecting it to react the same way as pure lithium is a profound misunderstanding of basic chemistry.
Re:Federal safety agency launches probe of Tesla battery fires by matt-attack on Thursday November 28, 2019 @11:28AM (#21658464)
Kind of like when people commonly refer to table salt as “sodium”. Sodium is a highly caustic and reactive metal. The metal sodium is profoundly different than the salt called sodium chloride. Sharing a specific type of element means nothing when comparing compounds.
Re:Federal safety agency launches probe of Tesla battery fires by jolmg on Wednesday November 27, 2019 @04:27PM (#21652284)
You know, you could have left it at the first sentence. There's no need to incorrectly assume what my expectations were or the source of the misunderstanding.
Re:Federal safety agency launches probe of Tesla battery fires by imglorp on Wednesday November 27, 2019 @11:37AM (#21649354)
This is a strawman argument really: what if this very rare thing happens (battery fire), and then another really rare thing on top of that (entrapment); therefore EV bad.

Compared to flammable liquid fires at 180,000 per year, see above, which really are pretty common.

Re:Federal safety agency launches probe of Tesla battery fires by dsfyu404ed on Wednesday November 27, 2019 @11:49AM (#21649475)
>Compared to flammable liquid fires at 180,000 per year,

This is a straw-man argument too. You're comparing battery fires to all vehicle fires. Ask any mechanic and they will tell you vehicle electronics systems are the primary source of crispness with stalled electric motors and rodent damage being the primary sources. Regardless of how it gets its motive power a vehicle's power-train rarely catches fire compared to other things that catch fire (which is probably in part why the NHTSA is interested in this).

Re:Federal safety agency launches probe of Tesla battery fires by hef19898 on Wednesday November 27, 2019 @11:46AM (#21649454)
No, that's classical FMEA (Failure Method Effect Analysis).
Re:Federal safety agency launches probe of Tesla battery fires by karlp on Wednesday November 27, 2019 @11:40AM (#21649382)
In case of accident, those two things would happen much frequently.
Re:Federal safety agency launches probe of Tesla battery fires by lnsru on Wednesday November 27, 2019 @11:53AM (#21649520)
Lithium fire also ends in a damaged battery, that needs special care. Better sources in German, but the problem is still described here: https://climatechangedispatch.com/wrecked-tesla-recycle-car/
Re:Federal safety agency launches probe of Tesla battery fires by j-pb on Wednesday November 27, 2019 @12:45PM (#21650087)
I wouldn't trust a "news source" with headlines like "Climate-Fearing Millennial Snowflake Self-Triggers During Hunger Strike" further than I could throw them.

Their clearly biased against EVs because "libtards" drive them.

Re:Federal safety agency launches probe of Tesla battery fires by lnsru on Wednesday November 27, 2019 @03:33PM (#21651811)
Agree, link is bad. But some random burning Tesla in Austria isn’t interesting for international press. Update: battery wasn’t burning. Austrian source: https://m.auto.oe24.at/thema/Ausgebrannter-Tesla-in-Tirol-Ak...
Re:Federal safety agency launches probe of Tesla battery fires by DennisP on Wednesday November 27, 2019 @12:48PM (#21650131)
I'm a huge Tesla and Musk fan but I'll point out the feds are investigating spontaneous fires, not those associated with collisions. I saw a video of this happening with a parked Tesla. How many gasoline vehicles spontaneously burst into flame?

Of course it's still rare, and I'll also mention that the Model 3 has a newer battery pack design and is not being investigated.

Re:Federal safety agency launches probe of Tesla battery fires by imglorp on Wednesday November 27, 2019 @01:05PM (#21650297)
> How many gasoline vehicles spontaneously burst into flame

Many, I think, mostly maintenance related. Frequent causes involve old gaskets or cracked fuel lines dripping onto the exhaust manifold, right on the side of the engine.

Re:Federal safety agency launches probe of Tesla battery fires by DennisP on Wednesday November 27, 2019 @01:09PM (#21650328)
Well, true, good point. I think much fewer while parked and turned off. But I do remember now my old VW Bug manual, which detailed at least four ways the little beast could catch itself on fire.
Re:Federal safety agency launches probe of Tesla battery fires by hef19898 on Wednesday November 27, 2019 @01:52PM (#21650760)
To be honest, the old VW Bug was technically a less than perfect car already back the day. A nice car, for sure and I love quirky old cars. But technically not perfect.
Re:Federal safety agency launches probe of Tesla battery fires by DennisP on Wednesday November 27, 2019 @02:07PM (#21650913)
Yeah "technically not perfect" pretty much sums up my experience with it :)
Re:Federal safety agency launches probe of Tesla battery fires by hef19898 on Wednesday November 27, 2019 @03:19PM (#21651663)
On the other hand, four ways to self-ignite is an engineering feat in itself!
Re:Federal safety agency launches probe of Tesla battery fires by tomatotomato37 on Wednesday November 27, 2019 @02:44PM (#21651268)
I mean it was essentially a mass produced shitbox designed to be affordable to someone living in the economic clusterfuck that was interwar Nazi Germany, you can't expect miracles
Re:Federal safety agency launches probe of Tesla battery fires by dsfyu404ed on Wednesday November 27, 2019 @02:41PM (#21651247)
>Many, I think, mostly maintenance related. Frequent causes involve old gaskets or cracked fuel lines dripping onto the exhaust manifold, right on the side of the engine.

You're not wrong that fuel does sometimes catch fire but it is very rare for a fuel leak to cause a fire on its own. It usually happens after a fire starts elsewhere.

Fuel system integrity in crashes has been scored in crash tests for a very, very long time (I recall reading about it when I was reviewing some microfiche with crash tests results of 70s pickups) so OEMs have been trying to build secure fuel systems for a long time and have gotten pretty good. With cross flow cylinder head designs (which every engine today has) there is no reason (it would be a waste of material to plumb it) to have fuel on the same side of the engine as the exhaust. The routing between the engine and the vehicle body basically always (i.e. I know of 0 exceptions but can't prove one doesn't exist) go out of their way not to run over exhaust. Fuel systems rarely have gasketed connections, almost everything is sealed with O-rings.

Mature EV designs probably catch on fire less than ICE designs but not really for any of the reasons you specified. Fuel fires mostly come from crash damage to fuel tanks where the crash also leaves the vehicle overturned. Most fires come from electrical systems not related to the drive-train. Even engine fires are rarely fuel, animal nesting debris is a far more common cause.

Re:Federal safety agency launches probe of Tesla battery fires by jhayward on Wednesday November 27, 2019 @02:44PM (#21651273)
> How many gasoline vehicles spontaneously burst into flame?

Ford recalled 8.7 million cars for spontaneous fire risk.[1] And that's just one case.

It happens more often than you'd think, and coverage of it in media tends to be subdued. Automotive is the largest source of advertising dollars for many media markets.

[1] https://www.latimes.com/archives/la-xpm-1996-04-26-mn-63066-...

Re:Federal safety agency launches probe of Tesla battery fires by danso on Wednesday November 27, 2019 @04:17PM (#21652215)
Using the numbers from the article you linked, and this WaPo article with more details [0]:

2,000 cars in the U.S. and Canada were believed to have had fires related to the ignition switches, which were installed in 23 million Ford vehicles. This is a failure rate of about 0.0087% overall, although Ford ultimately argued that it would only need to recall a subset of the vehicles with the ignition switch: 8.7M vehicles.

There are at least a dozen [1] Tesla fire incidents, and 720,000 Tesla vehicles sold through 2019 Q2 [2], which is a failure rate of about 0.0014%. So Tesla has a lower rate, but not by an order of magnitude, because Tesla has sold far fewer vehicles than Ford did over roughly the same number of years. So it seems justified for NHTSA to take a serious look into the issue.

[0] https://www.washingtonpost.com/archive/politics/1996/04/26/f...

[1] https://en.wikipedia.org/wiki/Plug-in_electric_vehicle_fire_...

[2] https://en.wikipedia.org/wiki/Tesla,_Inc.#Sales

Re:Federal safety agency launches probe of Tesla battery fires by OnlineGladiator on Wednesday November 27, 2019 @03:02PM (#21651490)
Comparing modern technology with decades old technology and claiming it's a fair comparison for safety standards is wildly disingenuous.

How many modern vehicles spontaneously burst into flame? I could easily believe it's orders of magnitude larger than for Teslas, but when you make comparisons like you did it just discredits your entire argument.

Re:Federal safety agency launches probe of Tesla battery fires by jhayward on Wednesday November 27, 2019 @04:09PM (#21652165)
Ok, I provided one example. It's on you to prove the point then. Please provide relevant facts proving your case. Prove my point is wrong.

Oh, and the majority of present-day ignitions in automobiles are still the exact same mechanical interlock switching types used since the 60's. Higher-end vehicles have solid state switching, but it's not the majority of vehicles.

Also:

https://abcnews.go.com/US/bmw-recalls-million-vehicles-fire-...

Re:Federal safety agency launches probe of Tesla battery fires by OnlineGladiator on Wednesday November 27, 2019 @04:17PM (#21652217)
You made a claim, not me. I just said your argument is flawed. I didn't say you're wrong - I believe you're probably right. But you didn't actually provide any data for your claim.

The burden of proof is on the person making the claim.

https://www.logicallyfallacious.com/tools/lp/Bo/LogicalFalla...

Re:Federal safety agency launches probe of Tesla battery fires by jhayward on Wednesday November 27, 2019 @04:20PM (#21652234)
Perhaps you could contribute positively to the discussion rather than just taking badly aimed potshots. You objected, you do better.
Re:Federal safety agency launches probe of Tesla battery fires by OnlineGladiator on Wednesday November 27, 2019 @04:28PM (#21652296)
I consider criticizing an argument to be a contribution - I did not even say you are wrong. It seems you want me to provide a clearly detailed argument for why you are wrong, but I don't have that because I don't even believe you are wrong. I haven't looked at the data - I just looked at your argument.

Anyway, agree to disagree I guess.

Re:Federal safety agency launches probe of Tesla battery fires by greglindahl on Wednesday November 27, 2019 @02:48PM (#21651326)
Here's an article from last April about thousands of non-crash car fires in a population of 6 million cars: https://www.bbc.com/news/business-47782247
Re:Federal safety agency launches probe of Tesla battery fires by 6d6b73 on Wednesday November 27, 2019 @11:59AM (#21649588)
Oh FFS. It doesn't matter if it more or less likely, it matters that it does happen and therefore should be investigated to protect people now and in the future.. You want them to wait until number of ICE vs EV fires are equal to start investigating this? Why not do it now, and fix the problem? Not only it will potentially make EVs safer now, but it will potentially make EV companies more profitable in the long term ( less legal fees, recalls etc).
Re:Federal safety agency launches probe of Tesla battery fires by techstrategist on Wednesday November 27, 2019 @11:22AM (#21649186)
I don’t think it’s rational to compare to overall highway vehicle fires. Wouldn’t you want to compare against similar luxury vehicles of a similar age?
Re:Federal safety agency launches probe of Tesla battery fires by im_with_stupid on Wednesday November 27, 2019 @11:30AM (#21649278)
I'm not a fan of all of Tesla's management practices, but this does seem to be a bit of a knee jerk reaction. One company has less than 1% of all fires for the industry, and with a component with known combustibility.

Even if the electronics failed, leaving the driver stuck inside, you would think the owners would have the foresight to either have something capable of breaking windows or a method by which to break them.

Re:Federal safety agency launches probe of Tesla battery fires by simion314 on Wednesday November 27, 2019 @11:41AM (#21649393)
Still OP is right, compare Tesla with similar car of price and age , there is a cool book "How to lie with statistics" that shows you how easy it is to manipulate with bad statistics though I am sure many Tesla fans spread this wrong statistics due to ignorance and not intentionally.
Re:Federal safety agency launches probe of Tesla battery fires by iamtheworstdev on Wednesday November 27, 2019 @12:06PM (#21649645)
I guess what I've learned in these comments is that people don't think the Tesla cars have manual, emergency use only, door releases.. Which they do.
Re:Federal safety agency launches probe of Tesla battery fires by rhinoceraptor on Wednesday November 27, 2019 @12:56PM (#21650215)
If you get in a crash severe enough to damage the battery pack, then the crash is probably severe enough to render your doors inoperable.

Also, lithium cells just need to be punctured to catch fire, they don't need an external ignition source.

Re:Federal safety agency launches probe of Tesla battery fires by Symbiote on Wednesday November 27, 2019 @06:06PM (#21653077)
Are the doors not mechanical? That would seem dangerous.

I was in a significant crash when I was 10 years old, and had to kick the opposite-side rear door to get me and my younger sibling out of the burning vehicle. The latch still worked, but the body panel was heavily dented by the collision.

Re:Federal safety agency launches probe of Tesla battery fires by simion314 on Wednesday November 27, 2019 @12:48PM (#21650129)
I am not sure why you responded to me, is it because I accused some people of using bad statistics so you try to deflect it ?

It is pretty clear though, Tesla has expensive new cars you need to compare them with similar cars.

Re:Federal safety agency launches probe of Tesla battery fires by mlindner on Wednesday November 27, 2019 @03:17PM (#21651644)
> Even if the electronics failed, leaving the driver stuck inside, you would think the owners would have the foresight to either have something capable of breaking windows or a method by which to break them.

Just for clarification, all Tesla vehicles, Model X included, have a manual pull to open the door even in the case that the power is dead. https://www.youtube.com/watch?v=01lXcD_Uz74

Re:Federal safety agency launches probe of Tesla battery fires by Symbiote on Wednesday November 27, 2019 @06:20PM (#21653168)
That looks awful! Especially for the rear doors, which don't have a mechanical opener on one model.

Basic design should mean that familiar methods work in an emergency. People often follow the usual way out of a building, even if there's a closer fire exit.

I just wrote above, but I was trapped in a burning car when I was a kid. The door latch worked, but I had to hold it open and kick the door to unjam it after a collision.

Had it been a Tesla, would I have known about unclipping the speaker grill, or finding a small tag to pull on at night? And been able to kick the door at the same time?

Re:Federal safety agency launches probe of Tesla battery fires by pgt on Wednesday November 27, 2019 @11:38AM (#21649361)
I don't think this is true: "you would think the owners would have the foresight to either have something capable of breaking windows".
Re:Federal safety agency launches probe of Tesla battery fires by olyjohn on Wednesday November 27, 2019 @12:06PM (#21649654)
Of course it's not true. People don't even read the owners manual, or care about how anything in their car works. The amount of times I've shown somebody a feature they didn't know about in their own car is staggering.
Re:Federal safety agency launches probe of Tesla battery fires by im_with_stupid on Wednesday November 27, 2019 @01:36PM (#21650593)
So what you're stating is, the owners seem to carry most of the liability.
Re:Federal safety agency launches probe of Tesla battery fires by hef19898 on Wednesday November 27, 2019 @11:50AM (#21649491)
The 1% only makes sense by normalizing for cars on the road and even better for distance driven. Otherwise it is not telling much.

And the only car I had in my live that has something to break a car window from the inside is my 4x4. And that only because the previous owner used it extensively for off-roading. So quite the opposite from your average Tesla.

Re:Federal safety agency launches probe of Tesla battery fires by dsfyu404ed on Wednesday November 27, 2019 @11:39AM (#21649371)
In an ICE car fuel and ignition sources are generally separate there's little to be gained by being unsafe with fuel.

In an EV your fuel and ignition sources are fundamentally inseparable and you can gain a lot (range/capacity, charge time/peak power) by being unsafe with it (running the battery to the ragged edge of what it can tolerate).

The fact that in response they quickly rolled out an update that neutered a large amount of capacity is far more interesting than the fires themselves and probably what the NHTSA wants to look into.

Re:Federal safety agency launches probe of Tesla battery fires by ryanmercer on Wednesday November 27, 2019 @11:19AM (#21649151)
>Having a compartment full of leaky flammable fluids and hot exhaust components might tend to do that on occasion.

Indeed, but you also get animal related fires (I have no clue as to what percentage) as birds, mice, chipmunks etc will build nests in vehicles.

I imagine the animal related fires are pretty low and in the case of an EV would be next to non-existent for nest-related fires, I wonder though if EVs though are more at risk of electrical fire from pets chewing on wires.

Trying to find any sort of statistics I stumbled upon a wildfire site that documents animal-started fires, the most recent one gave me a bit of a chuckle so I'm including it here:

"Bear falls on Sheriff’s vehicle causing crash and fire" https://wildfiretoday.com/2019/08/09/bear-falls-on-sheriffs-...

There's also the infrastructure damage caused by animals that is documented at https://cybersquirrel1.com/

Re:Federal safety agency launches probe of Tesla battery fires by kurthr on Wednesday November 27, 2019 @11:39AM (#21649370)
And don't forget carbon-monoxide poisonings and deaths...

Then there's hybrids. I've personally witnessed 2 fires and know another friend whos car burned. Two Prius and one Nissan something. Those are the worst of both worlds, gas and electric!

Re:Federal safety agency launches probe of Tesla battery fires by wiggles_md on Wednesday November 27, 2019 @12:37PM (#21649999)
The lithium battery fires I’ve seen associated with BEVs accelerate faster (edit, was: are quite a bit more vigorous) than those I’ve seen associated with gasoline or diesel fueled vehicles. Shouldn’t the violence of the fire (not just the number of incidents) figure into the safety calculus?
Re:Federal safety agency launches probe of Tesla battery fires by maratd on Wednesday November 27, 2019 @12:41PM (#21650043)
I would be far more concerned with the acceleration of the fire. If I have plenty of notice to get away from the vehicle and to keep others away, who cares how vigorous it is? Either way, the car will burn down. I don't think it matters how long that will take.

Have there been any deaths in these EV fires?

Re:Federal safety agency launches probe of Tesla battery fires by wiggles_md on Wednesday November 27, 2019 @12:48PM (#21650121)
That’s what I was trying to say but didn’t successfully, the BEV fires I’ve seen in testing accelerate quite a bit faster. Plus, the battery tends to be located below the passenger compartment, whereas fuel fires tend to start in the engine compartment. It doesn’t feel like the two types of vehicle fires are directly comparable by frequency of incidents alone.
Re:Federal safety agency launches probe of Tesla battery fires by close04 on Wednesday November 27, 2019 @12:15PM (#21649747)
Full nuclear reactor meltdowns only happened once (Chernobyl). Far less often than a wind turbine generator failure. Which one shouldn’t be investigated?