Spontaneous E-Bike Fire on Toronto subway (New Year's Eve 2023)

[Sophie777]

Spontaneous e-bike fire on Toronto TTC (subway).

Very scary.
I store my Trek Powerfly battery inside my apartment over the winter.

Could anyone possibly discern from the photo the brand of the e-bike? Hope it is not one of the major brands.

Video of the fire:
e-bike catches fire in the TTC subway. Toronto Canada

News report::


Photo of ebike:

 

[Bear-uk]

It looks like something made up with power tool batteries to me.
I wouldn't worry about your Trek battery as it's full of electronics designed to prevent this sort of thing. But I still wouldn't store or charge it near any exit doors.

 

[Doomanic]

Hope it is not one of the major brands.

I'm going to go out on a limb and say I think it's not one of what we would consider as from one the major brands. The box on the downtime looks like a controller unit so I think it's a either a home conversion or a cheaper commuter eBike.

I've had Bosch batteries in my house and garage for over 6 years and I haven't had any issues.

 

[RustyIron]

That isn't an eMTB. It looks like one of those affordable low-end moped-style commuter bikes for kids who don't have a car.

 

[Monkey Dog]

Cheapnese sh

 

[Mikerb]

whatever caught fire looks to have been on the rack at the back of the bike.........its not a mid drive motor and does not look like a hub motor either so maybe not an ebike at all. Probably a modified Tesla

 

[Sophie777]

But I still wouldn't store or charge it near any exit doors.

That's a good point.

 

[Stihldog]

Mechanical front calliper, reflector on the peddle? Can’t really tell.

But that rider is definitely overdressed.

 

[kla456]

I'm having a problem at hotels refusing my bike (on fire brigade advice, they say) but I can't stay if the bike is not in secure overnight storage with charging. Some bikes have removable batteries that can be carried into room (no control by hotel!), and of course laptops, mobile phones, etc. are beside us everywhere. I've not yet encountered a hotel basement carpark that refused entry to my EV.

What I'm saying is that batteries are part of modern life and they can't all be stored in the garden shed.
I trust batteries and battery chargers from reputable companies and OEM batteries installed in reputable products.
I know there is a risk but I'm am happy to store all of them inside my house.

I do not trust generic after-market batteries and I don't muck around with battery configurations that I don't understand.
I'm know batteries are less efficient at low temperatures, but that's not the question here and my EV works well enough parked outside.
Just saying .........

 

[Arminius]

Looks similar to this model: NCM T3s - 2023 New Version
And there had been some notes on heated batteries: Battery general problem of NCM and ET.Cycle Electric Bikes

 

[Stihldog]

I'm having a problem at hotels refusing my bike (on fire brigade advice, they say) but I can't stay if the bike is not in secure overnight storage with charging. Some bikes have removable batteries that can be carried into room (no control by hotel!), and of course laptops, mobile phones, etc. are beside us everywhere. I've not yet encountered a hotel basement carpark that refused entry to my EV.

What I'm saying is that batteries are part of modern life and they can't all be stored in the garden shed.
I trust batteries and battery chargers from reputable companies and OEM batteries installed in reputable products.
I know there is a risk but I'm am happy to store all of them inside my house.

I do not trust generic after-market batteries and I don't muck around with battery configurations that I don't understand.
I'm know batteries are less efficient at low temperatures, but that's not the question here and my EV works well enough parked outside.
Just saying .........

I have three of the Nest fire detectors which are hardwired and ‘talk’ to each other. (I think they’re Google now). But I don’t have one in my garage/shop where I store and charge my bikes.

I’ve been procrastinating about getting a 4th. I better get another before I regret it.

 

[Sophie777]

I have three of the Nest fire detectors which are hardwired and ‘talk’ to each other. (I think they’re Google now). But I don’t have one in my garage/shop where I store and charge my bikes.

I’ve been procrastinating about getting a 4th. I better get another before I regret it.

Yeah, I just purchased a fire detector for the room where I charge my battery.

 

[kla456]

Yeah, I just purchased a fire detector for the room where I charge my battery.

Spontaneous e-bike fire on Toronto TTC (subway).

Very scary.
I store my Trek Powerfly battery inside my apartment over the winter.

Could anyone possibly discern from the photo the brand of the e-bike? Hope it is not one of the major brands.

Video of the fire:
e-bike catches fire in the TTC subway. Toronto Canada

News report::


Photo of ebike:

View attachment 131588

That's a good point.

Spontaneous - not when charging or in use. And it's a big bike to be permitted into middle section of a metro carriage beside the disabled seats. It would be useful to get the fire service report.

 

[Just gan]

I'm having a problem at hotels refusing my bike (on fire brigade advice, they say) but I can't stay if the bike is not in secure overnight storage with charging. Some bikes have removable batteries that can be carried into room (no control by hotel!), and of course laptops, mobile phones, etc. are beside us everywhere. I've not yet encountered a hotel basement carpark that refused entry to my EV.

What I'm saying is that batteries are part of modern life and they can't all be stored in the garden shed.
I trust batteries and battery chargers from reputable companies and OEM batteries installed in reputable products.
I know there is a risk but I'm am happy to store all of them inside my house.

I do not trust generic after-market batteries and I don't muck around with battery configurations that I don't understand.
I'm know batteries are less efficient at low temperatures, but that's not the question here and my EV works well enough parked outside.
Just saying .........

Serious offence in offshore industry in uk leaving a laptop charging if nobody in room. Some folk like to leave them charging on the bed.

 

[Arminius]

Fire/Smoke detectors have a limited lifetime and should be checked at least once a year. I just replaced all of them in the house.
But how do you extinguish at home the burning battery pack? Next point is that at least when the battery of a EV car burns it is said that it spreads heavy toxid emissions to its surrounding.

 

[Arminius]

Here are some comments and recommendations of a German website of a insurance company:

How does an e-bike battery burn?
Lithium-ion batteries – that’s the exact term – have become an integral part of modern lifestyles. Li batteries provide cell phones, electric vehicles and many tools with the energy they need. Spectacular fires are reported again and again. Transported lithium batteries are even said to have caused the crash of a UPS freight plane in Dubai in 2010. After a house fire in Bremen in the summer of 2021, investigators found a completely charred e-bike that had been parked in front of it. In January 2022, a villa in Isernhagen near Hanover burned down, causing material damage amounting to millions. The cause: A defective e-bike battery exploded in the library of the 1,600 m2 property and first set the books and then the building on fire. The residents were warned in good time by an alarm system and were able to escape outside.

How does an e-bike battery burn?
Lithium batteries have an extreme energy density. This is of course an advantage for an energy source. However, if this energy is released uncontrollably, thermal energy develops. This encounters relatively quickly flammable chemicals. When the electrolytes in the battery ignite, they release energy in a fraction of a second. The resulting fire is supplied by oxygen from the cathode. Once the e-bike battery burns, further energy is released in a chain reaction. Fire protection experts speak of a “thermal run-away”. In the worst case scenario, this process can cause the e-bike battery to literally explode. Causes of battery fires can be mechanical damage, manufacturing defects or exposure to temperatures above 70°C, improper storage or use and overcharging. If a battery ruptures, the risk of fire for the surrounding area is often compounded by the development of smoke, which is harmful to health, because the plastic housing bursts into flames. To minimize this risk as best as possible, you should do everything that could promote an uncontrolled release of energy.

An e-bike battery rarely burns
Experts rightly emphasize again and again that accidents caused by an e-bike battery burning are unfortunate isolated cases. Electric cars, for example, are about as little or as susceptible to fire as gasoline cars. However, given the 7.1 million electric bicycles that have been rolling in Germany since 2021, according to the Federal Statistical Office, defective or even burning batteries cannot be completely ruled out. The rare battery fires are always a sensational topic in the media, without it being possible to derive a mass phenomenon from them. Statistics on the risk of fire should be viewed with caution, as percentage figures are difficult to determine given the ever-increasing number of Li-ion batteries in the world. They are probably currently in the per mille range of all fire causes, i.e. less than one percent. Public perception is easily deceived. While the cliché of a burned-out Tesla is ingrained in many people's minds, the US highway fire department has calculated that for every billion kilometers driven, 90 conventional cars caught fire - but only two electric cars. Of course, this study says nothing about the share of e-mobility in traffic volume. Nevertheless, it can allay fears about the dangers of the battery and draw attention to a few useful safety precautions.

My e-bike battery is burning: what to do?
An e-bike battery fire should never be underestimated. The General Association of Insurers therefore advises not to put out the fire yourself. The danger from toxic gases, corrosive substances or deflagration is simply too great. Please alert the fire department immediately and ensure that human lives are protected first. If possible, you can at least throw a blanket or sand over the burning battery. Even before an e-bike battery even burns, intense heat and smoke develop. It is then necessary to quickly move the part to an environment where it cannot cause any damage, such as outdoors. Although a fire can be prevented through correctly carried out water cooling, this is also a matter for professionals. Please no experiments!

 

[Just gan]

Here are some comments and recommendations of a German website of a insurance company:

How does an e-bike battery burn?
Lithium-ion batteries – that’s the exact term – have become an integral part of modern lifestyles. Li batteries provide cell phones, electric vehicles and many tools with the energy they need. Spectacular fires are reported again and again. Transported lithium batteries are even said to have caused the crash of a UPS freight plane in Dubai in 2010. After a house fire in Bremen in the summer of 2021, investigators found a completely charred e-bike that had been parked in front of it. In January 2022, a villa in Isernhagen near Hanover burned down, causing material damage amounting to millions. The cause: A defective e-bike battery exploded in the library of the 1,600 m2 property and first set the books and then the building on fire. The residents were warned in good time by an alarm system and were able to escape outside.

How does an e-bike battery burn?
Lithium batteries have an extreme energy density. This is of course an advantage for an energy source. However, if this energy is released uncontrollably, thermal energy develops. This encounters relatively quickly flammable chemicals. When the electrolytes in the battery ignite, they release energy in a fraction of a second. The resulting fire is supplied by oxygen from the cathode. Once the e-bike battery burns, further energy is released in a chain reaction. Fire protection experts speak of a “thermal run-away”. In the worst case scenario, this process can cause the e-bike battery to literally explode. Causes of battery fires can be mechanical damage, manufacturing defects or exposure to temperatures above 70°C, improper storage or use and overcharging. If a battery ruptures, the risk of fire for the surrounding area is often compounded by the development of smoke, which is harmful to health, because the plastic housing bursts into flames. To minimize this risk as best as possible, you should do everything that could promote an uncontrolled release of energy.

An e-bike battery rarely burns
Experts rightly emphasize again and again that accidents caused by an e-bike battery burning are unfortunate isolated cases. Electric cars, for example, are about as little or as susceptible to fire as gasoline cars. However, given the 7.1 million electric bicycles that have been rolling in Germany since 2021, according to the Federal Statistical Office, defective or even burning batteries cannot be completely ruled out. The rare battery fires are always a sensational topic in the media, without it being possible to derive a mass phenomenon from them. Statistics on the risk of fire should be viewed with caution, as percentage figures are difficult to determine given the ever-increasing number of Li-ion batteries in the world. They are probably currently in the per mille range of all fire causes, i.e. less than one percent. Public perception is easily deceived. While the cliché of a burned-out Tesla is ingrained in many people's minds, the US highway fire department has calculated that for every billion kilometers driven, 90 conventional cars caught fire - but only two electric cars. Of course, this study says nothing about the share of e-mobility in traffic volume. Nevertheless, it can allay fears about the dangers of the battery and draw attention to a few useful safety precautions.

My e-bike battery is burning: what to do?
An e-bike battery fire should never be underestimated. The General Association of Insurers therefore advises not to put out the fire yourself. The danger from toxic gases, corrosive substances or deflagration is simply too great. Please alert the fire department immediately and ensure that human lives are protected first. If possible, you can at least throw a blanket or sand over the burning battery. Even before an e-bike battery even burns, intense heat and smoke develop. It is then necessary to quickly move the part to an environment where it cannot cause any damage, such as outdoors. Although a fire can be prevented through correctly carried out water cooling, this is also a matter for professionals. Please no experiments!

We recovered one in a beacon from the seabed that had been there for years . You wouldn't believe the amount of meetings and precautions taken to recover it .

 

[kbass24emtp]

Here are some comments and recommendations of a German website of a insurance company:

How does an e-bike battery burn?
Lithium-ion batteries – that’s the exact term – have become an integral part of modern lifestyles. Li batteries provide cell phones, electric vehicles and many tools with the energy they need. Spectacular fires are reported again and again. Transported lithium batteries are even said to have caused the crash of a UPS freight plane in Dubai in 2010. After a house fire in Bremen in the summer of 2021, investigators found a completely charred e-bike that had been parked in front of it. In January 2022, a villa in Isernhagen near Hanover burned down, causing material damage amounting to millions. The cause: A defective e-bike battery exploded in the library of the 1,600 m2 property and first set the books and then the building on fire. The residents were warned in good time by an alarm system and were able to escape outside.

How does an e-bike battery burn?
Lithium batteries have an extreme energy density. This is of course an advantage for an energy source. However, if this energy is released uncontrollably, thermal energy develops. This encounters relatively quickly flammable chemicals. When the electrolytes in the battery ignite, they release energy in a fraction of a second. The resulting fire is supplied by oxygen from the cathode. Once the e-bike battery burns, further energy is released in a chain reaction. Fire protection experts speak of a “thermal run-away”. In the worst case scenario, this process can cause the e-bike battery to literally explode. Causes of battery fires can be mechanical damage, manufacturing defects or exposure to temperatures above 70°C, improper storage or use and overcharging. If a battery ruptures, the risk of fire for the surrounding area is often compounded by the development of smoke, which is harmful to health, because the plastic housing bursts into flames. To minimize this risk as best as possible, you should do everything that could promote an uncontrolled release of energy.

An e-bike battery rarely burns
Experts rightly emphasize again and again that accidents caused by an e-bike battery burning are unfortunate isolated cases. Electric cars, for example, are about as little or as susceptible to fire as gasoline cars. However, given the 7.1 million electric bicycles that have been rolling in Germany since 2021, according to the Federal Statistical Office, defective or even burning batteries cannot be completely ruled out. The rare battery fires are always a sensational topic in the media, without it being possible to derive a mass phenomenon from them. Statistics on the risk of fire should be viewed with caution, as percentage figures are difficult to determine given the ever-increasing number of Li-ion batteries in the world. They are probably currently in the per mille range of all fire causes, i.e. less than one percent. Public perception is easily deceived. While the cliché of a burned-out Tesla is ingrained in many people's minds, the US highway fire department has calculated that for every billion kilometers driven, 90 conventional cars caught fire - but only two electric cars. Of course, this study says nothing about the share of e-mobility in traffic volume. Nevertheless, it can allay fears about the dangers of the battery and draw attention to a few useful safety precautions.

My e-bike battery is burning: what to do?
An e-bike battery fire should never be underestimated. The General Association of Insurers therefore advises not to put out the fire yourself. The danger from toxic gases, corrosive substances or deflagration is simply too great. Please alert the fire department immediately and ensure that human lives are protected first. If possible, you can at least throw a blanket or sand over the burning battery. Even before an e-bike battery even burns, intense heat and smoke develop. It is then necessary to quickly move the part to an environment where it cannot cause any damage, such as outdoors. Although a fire can be prevented through correctly carried out water cooling, this is also a matter for professionals. Please no experiments!

If your ebike battery catches fire get out. Nothing you have at your home will put it out. The gas released will poison you. If the gas comes in contact with your skin it will burn you. Water does not put the fire out. All it does is cool the other cells to prevent them from going into thermal runaway. The fire will not go out until all the fuel that is burning is used up.

 

[Stihldog]

This thread has just caused me to go out and purchase another smoke detector for my shop/bike storage area.
THANKS A LOT!

Seriously Thanks

 

[Ark]

proper brand ebike batteries should only be at risk when charging and they will cut out if a battery starts to get hot.
If it's aUL certified battery they are supposed to be designed to avoid "propagation of fire" which I'm guessing after a quick google should mean they can't spread a fire, or cause something to combust.

I think inside the battery there are plastic chunks that melt and cover a cell if it gets too hot, and also if it's UL certified it's supposed to not have thermal run off, which is where one cell causes another to start a chain reaction

I'm guessing that subway fire was caused by something like a cheapo chinese battery having crappy soldering etc and one of the cells got shorted, those bateries have no safety certification and are built as cheap as possible

 

[Sophie777]

That is a very informative video.
Thanks for posting it!

 

[kla456]

That is a very informative video.
Thanks for posting it!

This from Cyclingweekly.com​

Buy smartly: these e-bikes meet the internationally recognized safety standards

What to look for when shopping for e-bikes and what to know about lithium-ion e-bike battery safety

www.cyclingweekly.com

UL AND CE LISTED E-BIKE BRANDS AS OF MAY 2023​

Manufacturer	Model
Row 0 - Cell 0	Row 0 - Cell 1
3T Bicycles	Boost
Argon18	Dark Matter, Subito E-Gravel, Subito E-Road
Aventon	Abound, Aventure, Level, Pace, Sinch, Soltera
Benno	46er, Boost, Ejoy, Remidemi
Bianchi	Aria E-Road, E-Impulsivo Road, E-Arcadex, E-Impulsivo Gravel, E-Omia, E-Omnia, E-Vertic, T-Tronik
Blix	Aveny, Dubbel, Packa, Sol, Ultra, Vika+ (CE Listed)
BMC	RoadMachine AMP, Fourstroke AMP, 257 AMP
Buzz	Cerana, Charter, Charter F, Centris
Cannondale	Synapse Neo, Topstone Neo, Moterra Neo, Treadwell Neo, Adventure Neo, Compact Neo, Tesoro Neo
Canyon	Grail:ON, Precede:ON, Spectral:ON, Torque:ON
Co-op Cycles	Generation, CTY
Cycles Devinci	E-Enduro, E-All Mountain, E-Trail, E-Road, E-Urban, E-City
Dahon	K-One
De Rosa	E--do, E--Bike
Diamondback	Union, Response, Current
Electra	Loft Go, Townie Go, Townie Path Go, Vale Go, Ghost Rider Go, Ace of Spades Go, Navigator Go, Shibori Go, Cruiser Go, Bali Cruiser Go
Focus	Thron, Jam, Focus SAM, Jarifa, Aventura, Planet
Fuji	Blackhill EVO, E-Jari, Ambient EVO, Conductor, E-Traverse, Sanibel, E-Crosstown, E-Nevada
Giant Bicycles	Fastroad E+, Roam E+, Explore E+, Talon E+, Trance X E+, Stance E+, Reign E+
Gocycle	G4 (CE listed; UL certification pending)
Ibis	Oso
Jamis	Hudon E2 (CE Listed)
Jetson	Bolt, Bolt Pro, Bolt Up, LX10 Folding, Journey, Adventure, Haze Folding, J5, Jetson Axle, J8, Atlas Fat Tire, Arro Folding,
Juiced	RipRacer, Rip Current, CrossCurrent, Hyper Scorpion,Hyper Scrambler, City Scrambler
Kent	Hybrid, Mountain, Cruiser
Kinesis	Lyfe, Lyfe Step-Thru, Range Evation (inc. flat bar) Range Ride 50 (inc flat bar),
Kona	Remote, El Kahuna, Libre EL, Dew-E, Ecoco, Rove HD, Dew HD, Coco HD
Lectric	XP, XPedition, XPremium, Electric XP Trike (CE Listed)
Liv Bicycles	Amity E+, Thrive E+, Rove E+, Embolden E+, Tempt E+, Intrigue E+
Look	E-765 Gravel/Optimum/Gotham
Marin	Alpine Trail, Rift Zone, Sausalito, Stinson
Mokwheel	Basalt, Scoria
Momentum Bikes	Voya+, Pakyak E+, Vida E+, LaFree E+Transcend E+
Murf Electric Bikes	Fat Murf, Alpha Cargo, Alfa Murf, Fat Murf Step-Thru, Higgs, Izzy
NEXT	Moscow Plus, C5, NCM Aspen, City Robin, Boogie Cruiser, ET Series, M7, C7, Milano, Cobra, Big Dog, Escape, Zebra, Cruiser, EE-Bike T7S
Niner	RIP, e9, WFO e9, RLT e9 RDO
Norco	Sight, Fluid, Range, Bigfoot, Charger, Indie, Scene
Orbea	Gain, Wild, Rise, Urrun, Kemen, Vibe, Optima
Pacific Cycles	Moove, E-Birdy
Pedelec	AWDIII, CORE
Pinarello	Nytro, Nytro Dust
Rad Power Bikes	RadRover, RadExpand, RoadRunner, RadWagon, RadCity, RadExpand, RadTrike
Raleigh	Retroglide Royale, Venture
Retrospec	Koa Rev+, Koa Rev+ Step-Through, Beaumont Rev Electric City Bike, Beaumont Rev Electric City Bike Step-Through, Valen Rev Electric Fat Tire Bike, Valen Rev Electric Fat Tire Bike Step-Through, Chatham Rev Electric Beach Cruiser Bike, Chatham Rev Electric Beach Cruiser Bike Step-Through, Jax Rev Electric Folding Bike
Ride1Up	Core-5, Roadster, Turris, LMT'D, Cafe Cruiser, 700 Series, Rift, Prodigy, Revv1
Scott	Patron, Strike, Contessa, Lumen, Aspect, Solace, Addict, Contessa Addict, Sub Cross, Solace Gravel, Contessa Solace Gravel, Sub Active
Specialized	Haul, Turbo Levo, Turbo Tero, Turbo Tero Step-Thru, Tero Como, Turbo Vedo, Turbo Vedo Step-Thru, Turbo Kenovo, Turbo Creo
Surly	Skid Loader, Big Easy
Tern	Quick Haul, NBD, Vektron, HSD, GSD
Trek Bicycles	Fuel, Rail, Domane+, E-Caliber, Fetch+, Powerfly, Allant+, Townie Path Go!, Vale Go!, Verve+, Ghost Rider Go!, Ace of Spades Go!, Navigator Go!, Townie Go! Step-Thru, Townie Go! Step-Over, FX+, Dual Sport+, Loft Go! Step-Thru, Loft Go! Step-Over, Bali Cruiser Go!, Shibori Cruiser Go!, Kakau Cruiser Go!, Cruiser Go! Step-Over, Cruiser Go! Step-Thru
VanMoof	S5, A5, S4, X4, S3, V
Wilier-Triestina	Ultra Hybrid, Filante Hybrid, Cento1 Hybrid, Triestina Hybrid, Jena Hybrid, 101X Hybrid, 101X Hybrid, E903TRN, E830TRB
Wing	Freedom X, Freedom Fatty 2, Freedom 2, Freedom ST
Yamaha	CrossCore, CrossConnect, Wabash, UrbanRush, Civante, YDX-Torc, TDX-Moro,
Yeti Cycles	160E

My LEVO seems to be covered but not my Merida e160, but probably also depends on year of manufacture

 

[Jackware]

Cube and Haibike are missing from the list?

 

[Mikerb]

Cube and Haibike are missing from the list?

...and Whyte...although the CE marking is only valid in the UK until Dec 24 at which date a UK standard will apply (with the CE approval accepted in the interim, and possibly in parallel thereafter).

Bikes/Ebikes do not need or undergo Type Approval so they will have no set standards for elements of its construction. The electrical components will be CE approved however if they are Bosch/Shimano/Yamaha etc or they would not be allowed to be imported/sold in the EU or UK.............................which begs the question why are there clearly electrical components of Ebikes (Li batteries /chargers etc) that do not meet those standards on sale!!

 

[Mikerb]

.....Vitus, Nukeproof.

I think the majority of the list is the UL ( USA) Approval.................and I would guess it only applies to the electrical components rather than the Bike per se. There are no safety standards for cycle brakes, standard drivetrain, handlebars etc that I know of.

 

[Stihldog]

I think even though your specific bike may not be on the list, a code or symbol may be present somewhere on the battery. Your country may have different certification's, but UL or CE seems to be a good standard.

 

[Just gan]

proper brand ebike batteries should only be at risk when charging and they will cut out if a battery starts to get hot.
If it's aUL certified battery they are supposed to be designed to avoid "propagation of fire" which I'm guessing after a quick google should mean they can't spread a fire, or cause something to combust.

I think inside the battery there are plastic chunks that melt and cover a cell if it gets too hot, and also if it's UL certified it's supposed to not have thermal run off, which is where one cell causes another to start a chain reaction

I'm guessing that subway fire was caused by something like a cheapo chinese battery having crappy soldering etc and one of the cells got shorted, those bateries have no safety certification and are built as cheap as possible

Could I get that in official writing please. Haha

 

[Ark]

Cube and Haibike are missing from the list?

the list is kinda dumb they could have just done it by the brands that make the batteries.


Every Bosch ebike should be full UL for the whole system.
not sure about the older ones, most other big manufactures didn't start doing UL until recently and do it only for the battery, which is the high risk part anyway.
Even without UL any of the big bands will no doubt be using the best cells and will have really good QA for any wiring/soldering and no doubt every battery is physically inspected .

Virtually every ebike fire you see in the news will be chinese grey market imports.
I think a few years ago bosch did a battery recall for a small batch of dodgy batteries though.

 

[kla456]

the list is kinda dumb they could have just done it by the brands that make the batteries.


Every Bosch ebike should be full UL for the whole system.
not sure about the older ones, most other big manufactures didn't start doing UL until recently and do it only for the battery, which is the high risk part anyway.
Even without UL any of the big bands will no doubt be using the best cells and will have really good QA for any wiring/soldering and no doubt every battery is physically inspected .

Virtually every ebike fire you see in the news will be chinese grey market imports.
I think a few years ago bosch did a battery recall for a small batch of dodgy batteries though.

UL 2849 is whole bike evaluation and testing procedure, not just the batteries. The test details are described in the above video by Ark.
UL is an independent testing system whereas CE is a self-certification system by the manufacturers
I will be replacing my 2021 Merida with a UL compliant and I have contacted UL (they invite contact through their website) to obtain confirmation if the replacement candidates are UL2849 compliant.

 

[Arminius]

Here is a BOSCH Tube with CE & Co: