E bike battery explosion in elevator
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MidnightDistortions
Flashlight Enthusiast
That is just horrifying 😱
I love the concept behind these things, but the execution is so ridiculously poor beyond belief.... Not even EV cars explode as often, on their own. I'd buy an e-Bike if these things just used a safer battery chemistry. Which, not as though that doesn't already exist.
Is this the same video? https://packaged-media.redd.it/rwpi...=89c5ef2f7eb60dfe4799df5e48d8e7aa25b3d069#t=0
The twitter link doesnt work here.
If it is the same video there is a good breakdown of it here.
factly.in
The twitter link doesnt work here.
If it is the same video there is a good breakdown of it here.
This Video showing an Electric Battery Explosion in an Elevator in China is not Caused by Magnetic Field - FACTLY
The explosion was not caused by magnetic fields, as the magnetic fields produced by the battery are too weak to trigger an explosion.
factly.in
Heck with the video. This is what I find amazing:
"...Additionally, these reports highlighted that, following Shanghai authorities' revision of rules banning electric bicycles or their batteries from being brought indoors or into elevators..."
"...Previously, Shanghai authorities banned bringing e-bike batteries indoors and prohibited commercial activities related to the assembly, addition, or modification of e-bikes..."
Amazing first because this happened there, and second, that it hasn't happened in the U.S.
"...Additionally, these reports highlighted that, following Shanghai authorities' revision of rules banning electric bicycles or their batteries from being brought indoors or into elevators..."
"...Previously, Shanghai authorities banned bringing e-bike batteries indoors and prohibited commercial activities related to the assembly, addition, or modification of e-bikes..."
Amazing first because this happened there, and second, that it hasn't happened in the U.S.
What really amazes me they have fleets of these E scooters and E bikes all over the city that you can rent with an app. Those fleets pay people to charge them for them. I have seen them charge them from the inverters in their vehicles, I have seen home made power sources that include a car battery and some sort of inverter that they carry to the bikes. People ride these things then throw them into the river. I have watched them pull one out and connect it directly to a power source to charge. There have even been cases where people steal power from buildings by adding pigtails to wiring they find on buildings. I can't believe there aren't more explosions. These people that charge the scooters are just your average people who apply online. No real training or safety courses. If you have apposable thumbs and half a brain you have a job.
Reminder: ALWAYS transport lithium batteries and devices containing them INSIDE the cabin, NOT checked luggage. For this very reason. Crews can fight battery fires in the cabin but these aircraft are not equipped to handle a lithium battery fire in the cargo hold.
thermal guy
Flashaholic
New fear unlocked! This was like 3 years ago
Here's what happens when you park your EV in an apartment garage:
Note the car had been parked for 3 days, NOT connected to a charger when it went up in flames. 140 other cars damaged. Building damage yet to be determined. 500 apartments in the surrounding area are without water and power for 5+ days.
Now some Korean buildings are prohibiting parking of EVs indoors/in garages.
Note the car had been parked for 3 days, NOT connected to a charger when it went up in flames. 140 other cars damaged. Building damage yet to be determined. 500 apartments in the surrounding area are without water and power for 5+ days.
Now some Korean buildings are prohibiting parking of EVs indoors/in garages.
To me, the scary part is that both that EV and eBike in the beginning of this thread both lit up when they weren't being used and weren't being charged. Just sitting there, "off". The car had been sitting for 3 days. It certainly does merit having a conversation about the intense energy density and catastrophic results that can happen when one of these fails. Unlike petrol, batteries, especially lithium batteries, have all 3 parts of the fire triangle within -- heat, oxygen, fuel.
Exactly! About the only good thing that came from that EV fanatic being on CPF for awhile is that it caused much of the CPF members to take a far more in-depth look at EVs than we probably would have. I had given serious thought to my next new car being a hybrid. Not anymore! Pretty much have it narrowed down to the latest Honda Civic or Mazda 3 models. Both running off of gasoline.
I've never actually driven a Honda, but my better half has a fully loaded Mazda 6 and it's a nice car. It feels like someone actually cared when designing it. Materials feel much nicer than what you'll find in a Toyota Camry/Avalon.
At the same time, it suffers from the "good enough" mentality I find in Asian cars.
For example, on a German car the fuel filler door is unlocked when the car's doors are unlocked. On the Mazda, it's locked 24/7, to be released by reaching under the dash (where you can't see when sitting) to pull a lever which is attached to a physical cable that goes to the door latch. Right next to it is an identically-shaped lever which pops the hood via cable. I can't count how many times we've gotten out of the car to find we've not popped open the fuel door, or accidentally popped the hood.
Similarly, the German cars unlock the trunk when the doors are unlocked. On the Asian cars, the trunk is always locked and has to be unlocked every...single...time.
Or the carpeting which doesn't go all the way up beyond where the eye can see, or the lack of cover panels in the footwell where you can't see.. Or the single vent for the footwell vs. multiple vents extending the entire width, etc. AC's weak, by design.
Still a good car though. Very sure-footed when given a proper set of tires.
I wouldn't drive a full hybrid, but wouldn't rule out a mild hybrid. My Mercedes fits under that umbrella, although I have the 12vDC-only version. In practical terms, it means that my car's engine will shut down and/or disconnect from the transmission when it's not needed. We have it tuned so that when I'm driving down road, I can flick the gas pedal and release it quickly to trigger the engine to go into "Gliding Mode." and the engine is decoupled from the transmission and the car coasts. If the aircon is on, the engine will idle at a very low RPM to keep that going. Very little extra complexity and no lithium batteries.
I did drive a newer Mercedes with the 48vDC system and it was seamless. It was kind of unusual to see the engine go to 0 RPM so early and for so long. That version has no 12v battery at all, and just a 1kWh lithium battery. BUT, the engine has no belts. Instead everything is electric and it uses an oddball combo starter/generator/motor thingie(TM), which can move the car forward. If you let into it, the car will use both the electric motor and gas motor. Launching that barge 0-60 in under 4.5 seconds is admittedly fun. Too bad they've beaten all of their new models with an ugly stick on the inside and outside. Enough that I wouldn't buy one.
At the same time, it suffers from the "good enough" mentality I find in Asian cars.
For example, on a German car the fuel filler door is unlocked when the car's doors are unlocked. On the Mazda, it's locked 24/7, to be released by reaching under the dash (where you can't see when sitting) to pull a lever which is attached to a physical cable that goes to the door latch. Right next to it is an identically-shaped lever which pops the hood via cable. I can't count how many times we've gotten out of the car to find we've not popped open the fuel door, or accidentally popped the hood.
Similarly, the German cars unlock the trunk when the doors are unlocked. On the Asian cars, the trunk is always locked and has to be unlocked every...single...time.
Or the carpeting which doesn't go all the way up beyond where the eye can see, or the lack of cover panels in the footwell where you can't see.. Or the single vent for the footwell vs. multiple vents extending the entire width, etc. AC's weak, by design.
Still a good car though. Very sure-footed when given a proper set of tires.
I wouldn't drive a full hybrid, but wouldn't rule out a mild hybrid. My Mercedes fits under that umbrella, although I have the 12vDC-only version. In practical terms, it means that my car's engine will shut down and/or disconnect from the transmission when it's not needed. We have it tuned so that when I'm driving down road, I can flick the gas pedal and release it quickly to trigger the engine to go into "Gliding Mode." and the engine is decoupled from the transmission and the car coasts. If the aircon is on, the engine will idle at a very low RPM to keep that going. Very little extra complexity and no lithium batteries.
I did drive a newer Mercedes with the 48vDC system and it was seamless. It was kind of unusual to see the engine go to 0 RPM so early and for so long. That version has no 12v battery at all, and just a 1kWh lithium battery. BUT, the engine has no belts. Instead everything is electric and it uses an oddball combo starter/generator/motor thingie(TM), which can move the car forward. If you let into it, the car will use both the electric motor and gas motor. Launching that barge 0-60 in under 4.5 seconds is admittedly fun. Too bad they've beaten all of their new models with an ugly stick on the inside and outside. Enough that I wouldn't buy one.
Bought my 2009 Mazda 6, V6 sSport trim back in February of that year. A lot of preventative maintenance has kept costs down.
I'm guessing your better half has a younger Mazda 6? On mine, trunk release is to the left of the steering wheel on the dash. Fuel-filler cap on the floor. Hood release about halfway down from the trunk release.
To be honest, if my trunk popped open every time I unlocked the doors, I'd think something was seriously wrong with the keyfob. Crossed signals.
Can confirm regarding the tires. Excellent handling despite its size. It can easily be pushed harder than other cars its size, and still maintains its composure on the road.
alpg88
Flashlight Enthusiast
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I've been saying it before, batteries are like gunpowder, if they start venting they will not stop until all affected cells vent.
The guy in the elevator had a liquid dripping from the battery, you can see it on the video, so at least with his battery we can say it may have been compromised, but a car parked for 3 days not plugged to anything, is a very real concern.
The guy in the elevator had a liquid dripping from the battery, you can see it on the video, so at least with his battery we can say it may have been compromised, but a car parked for 3 days not plugged to anything, is a very real concern.
2018 Mazda 6 Signature.
This is just an idiotic design.
Here's a photo from a car listing. Note where the steering wheel is... then buttons for the traction control/parking sensors... below that is the trunk release push button. Under the dash are the fuel door & hood release. Note both levers are the same size and feel.
Close-up from a YouTube video thumbnail...ignore the text.
View from overhead. Note that your knee will be covering the trunk button if sitting in the driver's seat.
I'm not saying it pops open on the German cars, rather you don't have to manually push the button on the keyfob or inside the car every single time you want to open the trunk. If the doors are unlocked, just pushing the release button on the trunk lid or waving your foot underneath the rear bumper causes the trunk to open. No keyfob or going back inside the car necessary.
