Fire History

[Asphalt]

EUC fire report involving multiple EUCs.

The auto-translate isn’t very understandable. Can anyone who reads Russian decipher what happened?
https://www.facebook.com/groups/1102391196972031/permalink/1145140376030446/

 

Here’s the auto-translate:

Today, another EUC fire case is described in Telegram groups 😲

Original description:
"March 5, E-Bitz celebrated her 3rd birthday... The garage was a lot of fun crowded! Pasha DJ, light music, disco! About 3-4 nights began to break up, the "survivors" on the courage decided to walk Olesya @Blind_Unicorn and continue a little at her home.
Already at Olesya, Pasha @Pashangage didn't calculate his strength, fell asleep, the rest went away after tea, Olesya also went to bed, it was already morning...
And in the corridor Supix 84 (he also caught fire), Sherman next to (he burned), at the Pashina Supra passage itself (also burned) , in the corner of 16s 840 V2, in the bag close to the toilet 16a, next to the door to the toilet z10 on the stand (all wheels are off / NOT used They had a blast). "

Edited March 19, 2022 by Asphalt

[GoGeorgeGo]

8 minutes ago, Asphalt said:

EUC fire report involving multiple EUCs.

The auto-translate isn’t very understandable. Can anyone who reads Russian decipher what happened?
https://www.facebook.com/groups/1102391196972031/permalink/1145140376030446/

Thats absolutely brutal to see them burnt like that. First time i have seen a fire result in those types of injuries. The unicycle in the picture appears to be a sherman? It says multiple eucs though and i dont see a second one. 

Edit: says a supix 84 started tbe fire and the eucs where just casualties i think. Although on quick search i dont know what a supix 84 is

On March 5, E-Bitsa celebrated its 3rd birthday... It was a lot of fun in the garage, crowded! Pasha - DJ, light music, disco! continue at her home.
Already at Olesya, Pasha @Pashangage, having not calculated his strength, fell asleep, the rest parted after tea, Olesya also went to bed, it was already morning...
And in the corridor, supix 84 (it caught fire), Sherman is nearby (it burned out), at the very aisle Pasha’s supra (also burned out), in the corner 16s 840 V2, in a bag closer to the toilet, disassembled 16a, next to the very door to the toilet z10 on stand (all wheels off/NOT infected)."

Edited March 19, 2022 by GoGeorgeGo

[Paul A]

Pictures from the fire.

 

 

 

 

[TantasStarke]

4 hours ago, GoGeorgeGo said:

Thats absolutely brutal to see them burnt like that. First time i have seen a fire result in those types of injuries. The unicycle in the picture appears to be a sherman? It says multiple eucs though and i dont see a second one. 

Edit: says a supix 84 started tbe fire and the eucs where just casualties i think. Although on quick search i dont know what a supix 84 is

On March 5, E-Bitsa celebrated its 3rd birthday... It was a lot of fun in the garage, crowded! Pasha - DJ, light music, disco! continue at her home.
Already at Olesya, Pasha @Pashangage, having not calculated his strength, fell asleep, the rest parted after tea, Olesya also went to bed, it was already morning...
And in the corridor, supix 84 (it caught fire), Sherman is nearby (it burned out), at the very aisle Pasha’s supra (also burned out), in the corner 16s 840 V2, in a bag closer to the toilet, disassembled 16a, next to the very door to the toilet z10 on stand (all wheels off/NOT infected)."

If you google "супикс" which was translated as "Supix" it shows pictures of EUC's. I believe it's a bad translation for a Msuper X. 84 is probably for the voltage of that MSX. I can't read russian so I'm not 100% on the whole story but it sounds like a Gotway MSX 84V caused the fire

[enaon]

Quote

 PS: Gotway caught fire in which there was not a regular battery. When the client brought the wheel to the service, he asked to check, in addition to everything, the waterproofing, since our proprietary waterproofing was broken as a result of building up the battery from a certain master on the side. The cause of the fire is not known. Perhaps water, perhaps a crooked assembly🤷🏽‍♂️

 

Edited March 19, 2022 by enaon

[redsnapper]

just brutal - awful reminder that euc in ur living space can create an intense blaze that is outta control in no time! bigger the pack bigger the blaze... an euc fire while u sleep is worst case scenario.

[yoos]

3 hours ago, TantasStarke said:

I can't read russian so I'm not 100% on the whole story but it sounds like a Gotway MSX 84V caused the fire

Yes, "Supix" is the slang name for the MSuperX. And yes, it was the EUC that started the fire. (All the EUCs involved were off and not charging at the time). [I don't have extra info, I just speak russian]

And another recent fire to add to this sad list: at the ecodrift service center, caused by a Gotway wheel with a non-stock battery (installed by a third party, not ecodrift. The customer left his wheel at the service center asking them to check the assembly and waterproofing). The wheel just rested there and eventually started cracking and caught on fire, producing lots of smoke and activating fire sprinklers. The brave guys at ecodrift managed to save a lot of the stuff so only two EUCs were lost to the fire. However, the automatic sprinkler system might have caused extra damage (in addition to the downtime of the service center and showroom), they had to disassemble all salvaged EUCs to check for water damage. Source -- ecodrift telegram channel.

[alcatraz]

That looks insane!

Was it an MSX84 with a modified battery pack? What kind of modification I wonder.

Edited March 19, 2022 by alcatraz

[mike_bike_kite]

I'm not sure what we learn anything by putting any of these into the stats. It's user error for one and being in the wrong place at the wrong time for the others.

[Asphalt]

Google Translation from the EcoDrift Telegram group:

https://t.me/ecodriftnews/883

======================

🔥 Our service burned down again 🔥
 First, Gotvey, well, where would we be without him?  He stood and waited until the turn for repairs reached him ... He just started clicking, then he caught fire, covering the entire service and the nearest premises in the building with a terrible smoke.  The fire engine turned on and flooded the entire service.  All service employees are courageous guys.  While the wheel was burning, they pulled out everything that was in the service in the rain from the fire.  It was a long 30 minutes ... the result - only two wheels burned out.  The Ministry of Emergency Situations, the police, the interrogator... but, at this time, the service employees are on their knees dismantling all the rescued wheels and pulling out batteries everywhere to exclude an even larger scale of fireworks.  The amount of damage is still unknown.  At the moment, the service is closed until March 28.  It is completely closed and does nothing.  The showroom is also closed, as there is now a service area.  We turned off all telephony so that the service could not be reached.  We also turned off the sales department so that they would not be called and asked about the service.  This is a forced step in order to eliminate the consequences of the fire as soon as possible and return to normal.  Sorry guys, but if we work in parallel, we will not sit on two chairs, everything will drag on for an indefinite period.
 We couldn't make it public yesterday because investigative actions are being carried out right now.  And, this post could interfere with them.

 P.S.: The Gotway caught fire in which there was a non-standard battery.  When the client brought the wheel to the service, he asked to check, in addition to everything, the waterproofing, since our proprietary waterproofing was broken as a result of building up the battery from a certain master on the side.  The cause of the fire is not known.  Perhaps water, perhaps a crooked assembly🤷🏽‍♂️

 P.P.S.: Well, as always, a fiery hello to those who came to the service and sales department yesterday, saw that there was cinder everywhere and everyone was running around wet, demanded to accept it.  There were two clients.  One even wrote a review with 1 point.  Good luck with your life.
 There are no conclusions from this story.  Take care of yourself.

Edited March 20, 2022 by Asphalt
Added link to post in Telegram group

[Wolverine]

Kingsong S20 fire:

 

[Asphalt]

 

 

 

[TantasStarke]

A Nikola burned down, had custom battery packs. Sounds like it was the AR+/ a generic AliExpress 2700wh version based on him talking about 3 packs, but he hasn't responded to the thread on that question

[FlyingWigs]

Sounds like he had some work done to the battery based on the wording there. 

[supercurio]

Source for the the fire @TantasStarke reported: https://www.facebook.com/groups/ElectricUnicycle/posts/4986577861440137/

I asked some details about how the packs were rebuilt:

Quote

So sorry Luc Cossette. Glad nobody got injured.
Rebuild/repaired packs have led to mixed results so far, I think partially due to not being strict enough on how.
Do you know the details on how it was rebuilt? Was these all new BMS and matched cells after measuring their capacity/health one by one?
These are questions you can be asking now if it was not disclosed upfront by the battery specialist.

That's the answer I got:

Quote

bms were tested fine battery were degrade more then i thought it was

 

Edited April 4, 2022 by supercurio

[Robse]

On 1/18/2021 at 8:31 PM, Asphalt said:

******
Feb 28, 2022 - To more accurately reflect the number of EUC fires, reports of burnt/smoking control boards have been removed from this list. The remaining reports are only of EUC fires.
******

Mar 17, 2022 - Attempt to differentiate fires caused by user abuse (dropped in a river, battery modifications, crashes, etc.)
******

 

Frequency by manufacturer for all fires

Gotway/Begode: 22

Kingsong: 6

InMotion: 1

Segway: 1

IPS: 1

 

Frequency by manufacturer for non-user-related fires

Gotway/Begode: 17

Kingsong: 3

InMotion: 1

Segway: 1

IPS: 1

 

 

 

 

This thread is quite good and creepy    reading. But it would be nice if we also knew something about how many of the different models have been sold. Right now you can only state that in terms of (fire) quantity, Gotway is the leader in the league, but that is not the real truth - if GW has sold 4 times as many wheels as Kingsong, then it is actually the Kingsong that leads the race...

[Tawpie]

2 minutes ago, Robse said:

if GW has sold 4 times as many wheels as Kingsong, then it is actually the Kingsong that leads the race...

word on the street is that IM outsells every other manufacturer—I think combined. GW is definitely a player, but mostly amongst those that really drive hard so their use case is a bit different.

[TantasStarke]

1 hour ago, TantasStarke said:

A Nikola burned down, had custom battery packs. Sounds like it was the AR+/ a generic AliExpress 2700wh version based on him talking about 3 packs, but he hasn't responded to the thread on that question

More info
It wasn't the Alienrides 2700wh one, but it was 2700wh it seems. Also purchased in october 2019 and using the LG M50T cells. Does Gotway/Begode still use M50T or did they switch to M50LT?
 

Edited April 4, 2022 by TantasStarke

[Hellkitten]

It seems like a lot of these fires are with indi battery mods. Is there any information on how many are from the factory vs retro fitted packs? 

[TantasStarke]

5 minutes ago, Hellkitten said:

It seems like a lot of these fires are with indi battery mods. Is there any information on how many are from the factory vs retro fitted packs? 

On the first page of this thread OP compiled 2 different charts, manufacturer caused fires, and user error fires. custom packs, dropping in a lake, etc. are tossed into the rider error section. It's possible some of the manufacturer caused fires are actually rider error, but it's at least fairly accurate.

 

11 minutes ago, Tawpie said:

word on the street is that IM outsells every other manufacturer—I think combined. GW is definitely a player, but mostly amongst those that really drive hard so their use case is a bit different.

I heard the same thing, a big reason is IM dominates the low speed commuter market while GW dominates the high performance market. Would be interesting to see real numbers from a US retailer, while it won't be perfect if we saw GW leading the pack in sales on say AlienRides, Euco, or Ewheels to get a better picture of how it is at least in the USA.
You definitely can't push a V8 as hard as an RS, and from what I've heard pushing the lowend IM wheels leads to burnt control boards. I think Wrong Way commented on how he's burned quite a few IM boards just from his normal riding. Burnt boards are definitely better than a raging battery fire though

[supercurio]

Gotway packs stopping to charge before full are fairly common. There are many in my riders group who experienced that.
Therefore there's a strong drive to fix these packs, some full of good(?) cells instead of disposing of them.

But there are many packs repairs, which are re-using the cells without steps that I would require absolute minimum requirement aka individual capacity testing of the cell in order to

1. discard degraded or damaged cells
2. assign cells to relevant cell groups, so each cell group in series have comparable capacity in order to remain balanced during usage.

In that case, there's no indication that the BMS was replaced nor the cells were investigated before being reused apparently.
I strongly suspect malpractice from the person/shop who rebuilt these packs. And I'm sure this is far too common: having discussions right now in our group about someone who wants to do the same thing.

Edited April 4, 2022 by supercurio

[Funky]

45 minutes ago, Robse said:

This thread is quite good and creepy    reading. But it would be nice if we also knew something about how many of the different models have been sold. Right now you can only state that in terms of (fire) quantity, Gotway is the leader in the league, but that is not the real truth - if GW has sold 4 times as many wheels as Kingsong, then it is actually the Kingsong that leads the race...

I remember seeing on this forum somewhere yearly sells, or something like that.. Gotway wasn't even in second place for most sold wheels. And i remember it was under kingsong, because i got that.  So no one can beat Gotway yet. They are firely good!!!

Doh Gotway wheels get the most abuse of all wheels.. As they are for "extreme" riders, more or less.

Edited April 4, 2022 by Funky

[alcatraz]

I hold on to the point that DIY has to be allowed, but you have to monitor the pack.

How the hell did it burn up after one ride? It makes no sense. 

Overcharge protection must have been disabled. 

I wish there was a small cheap bluetooth module that could be installed on the packs. With voltage alarms and readouts when connected to. A tiny termistor to report the pack temperature. Thin wires, just to let us know if something is off.

[TantasStarke]

3 hours ago, alcatraz said:

I hold on to the point that DIY has to be allowed, but you have to monitor the pack.

100% agreed, it just goes into the "rider fault" category.

 

3 hours ago, alcatraz said:

How the hell did it burn up after one ride? It makes no sense. 

Overcharge protection must have been disabled. 

Probably just a really poor job at rebuilding the batteries by the guy who rebuilt them. Guy went on a 63km/39mi ride on an 1800wh wheel which sounds like he drained that battery on that ride. If cells with different levels of health and charge level were bundled together some cells could've been thrown under 2.5V while riding, or overcharged and thrown over 4.2V, maybe even a little bit of both. BMS could've been damaged as well and not functioning properly, there's no real way to tell how well the battery reconstruction was before this fire. For all we know the guy could've done everything right and this really was a gotway manufacturer issue, but it's definitely more likely the modder messed it up.

[Robse]

Far too many "do it yourself people" have no idea at all what they are doing,
besides they have read and seen a lot of youtube videos, which makes them
falsely confident and well-informed about products that actually require care,
accuracy and many years of professional approach and knowledge to be able to
handle these small hand grenades called battery packs - correct!
Many people are not at all aware of the energy potential stored in just a single
cell. It's a small room where +10 billion little crazy angry goblins live, just
waiting for the slightest opportunity to escape a crack and make a hell of a fuss.
No one can or should forbid people to rebuild their battery themselves, but where
do we stand when the first home-made unit is to blame for a major forest fire,
or people who are badly injured/death - and who have nothing to do with it at all?
It will all be blamed on the EUC riders.  If you read all cases of fire closely in
this thread, then it is probably not an exaggeration that half can be attributed
to home-built modifyied batteries, and that says a lot about the situation.
20 years ago in the computer industry( been there  ) where it was much more common
for people to build their own PC, out of 100 cases of error, the 90 were related to
what people themselves thought they had done right because they had read a test,
seen a review of a graphics card or motherboard ... listened to their good friend,
so now they were smart enough to buy hardware and build a PC... not.