Izael Posted June 11, 2020 Share Posted June 11, 2020 Does someone have information about the problem With fire on the MSPs. I ordered one and I’m concerned. 1 Quote Link to comment Share on other sites More sharing options...
Meserias Posted June 11, 2020 Share Posted June 11, 2020 it's only related to US delivered units ?... this is true ? Quote Link to comment Share on other sites More sharing options...
Chriull Posted June 11, 2020 Share Posted June 11, 2020 1 hour ago, Izael said: Does someone have information about the problem With fire on the MSPs. I ordered one and I’m concerned. Welcome! The little we know is that ewheels and ecodrift recalled (only) batteries from some first patches were GW used panasonic 21700 cells. The now used LG 21700 cells seem to be considered safe by them. Not to much details are published, as far as i got it? Here one could find more details. The other video spreading around of a GW catching fire while riding was a GW with third party modified battery. 1 Quote Link to comment Share on other sites More sharing options...
Popular Post houseofjob Posted June 11, 2020 Popular Post Share Posted June 11, 2020 49 minutes ago, Chriull said: The other video spreading around of a GW catching fire while riding was a GW with third party modified battery. He's probably talking about yet a newer incident for the MSP now, not Nikola or Monster: https://www.facebook.com/groups/GotWay/permalink/3156327484425552/ 5 Quote Link to comment Share on other sites More sharing options...
Popular Post Marty Backe Posted June 11, 2020 Popular Post Share Posted June 11, 2020 1 hour ago, houseofjob said: He's probably talking about yet a newer incident for the MSP now, not Nikola or Monster: https://www.facebook.com/groups/GotWay/permalink/3156327484425552/ And people keep conflating "smoking" with a "fire". That MSP didn't burn like the Monster. There haven't been any MSP fires. Sheesh! 4 Quote Link to comment Share on other sites More sharing options...
Popular Post houseofjob Posted June 11, 2020 Popular Post Share Posted June 11, 2020 15 minutes ago, Marty Backe said: And people keep conflating "smoking" with a "fire". That MSP didn't burn like the Monster. There haven't been any MSP fires. Sheesh! 4 Quote Link to comment Share on other sites More sharing options...
EvoKnvl Posted June 11, 2020 Share Posted June 11, 2020 (edited) And sounds like there was a 2nd one, different from the one @houseofjob posted. https://www.facebook.com/groups/GotWay/permalink/3158510217540612/ Edited June 11, 2020 by EvoKnvl 2 Quote Link to comment Share on other sites More sharing options...
houseofjob Posted June 11, 2020 Share Posted June 11, 2020 3 minutes ago, EvoKnvl said: And sounds like there was a 2nd one, different from the one @houseofjob posted. https://www.facebook.com/groups/GotWay/permalink/3158510217540612/ Oh wow, that's crazy. They're saying both MSP's were from the same recently delivered batch from eWheels, if I'm not mistaken, many were waiting for this batch through Gotway delays. Quote Link to comment Share on other sites More sharing options...
houseofjob Posted June 11, 2020 Share Posted June 11, 2020 Also, this guy in Switzerland reporting an MSP board burn water infiltration issue today: https://www.facebook.com/groups/GotWay/permalink/3163630967028537/ 2 Quote Link to comment Share on other sites More sharing options...
houseofjob Posted June 11, 2020 Share Posted June 11, 2020 ... and now a Monster V3 as well https://www.facebook.com/groups/ElectricUnicycle/permalink/3005716242859652/ 2 Quote Link to comment Share on other sites More sharing options...
Brendan "nog3" Halliday Posted June 11, 2020 Share Posted June 11, 2020 Aside from the water damage one these are all mosfets/ics going up in smoke. Either Gotway has a batch of dodgy mosfets or some of the associated control circuitry is out of spec/faulty and causing mosfet oscillation and overheat. From what I've seen the heatsinking of the mosfets seems to be appropriate so I don't think it's that, though maybe hot glue man and heatpaste man swapped jobs for a week? 3 Quote Link to comment Share on other sites More sharing options...
davinche Posted June 11, 2020 Share Posted June 11, 2020 Jesus. Are these all from ewheels? I feel bad for Jason if he is having to deal with all of these defects from Gotway. 3 Quote Link to comment Share on other sites More sharing options...
Popular Post M Squared Posted June 11, 2020 Popular Post Share Posted June 11, 2020 (edited) I was the original poster of the MSP that began popping/smoking on the Gotway Facebook group. Literally only had the thing 3 days and it was on the second ride that it cut out at around 15mph, threw me into the street and then began profusely smoking. EUC was sent back to ewheels and Gotway has contacted me about the situation as well. Should know this weekend what Ewheels finds and what my replacement options are going to be. Extremely scary though, been riding my Ninebot for over 5 years and never once had a cutout, let alone smoke. Didn't expect from a brand new wheel... Edited June 12, 2020 by M Squared 7 Quote Link to comment Share on other sites More sharing options...
null Posted June 11, 2020 Share Posted June 11, 2020 (edited) I sure hope they can put the finger on the faulty element quickly so we can at least know what controller boards are affected.. My dad is awaiting a MonsterV3 (his first serious wheel) i wouldn’t want it to fry on him. Edited June 11, 2020 by null Quote Link to comment Share on other sites More sharing options...
Popular Post Marty Backe Posted June 12, 2020 Popular Post Share Posted June 12, 2020 Yep, there's clearly an issue here. Yesterday Jason said there were only two MSP failures out of 100+ wheels. But now this Monster? He told me he was waiting for feedback from Gotway in the next day or two. 7 Quote Link to comment Share on other sites More sharing options...
travsformation Posted June 12, 2020 Share Posted June 12, 2020 (edited) Now that I was considering either an MSP or a Nikola! Damn you, GW !!! Edited June 12, 2020 by travsformation 1 Quote Link to comment Share on other sites More sharing options...
Eka Posted June 12, 2020 Share Posted June 12, 2020 As far as I know it's only the 2000w MS Pro or in the UK MSS. As far as I know the 2500w doesn't have a problem so far. My MS Pro 2500w will be in my hands next week. Quote Link to comment Share on other sites More sharing options...
M Squared Posted June 12, 2020 Share Posted June 12, 2020 28 minutes ago, Eka said: As far as I know it's only the 2000w MS Pro or in the UK MSS. As far as I know the 2500w doesn't have a problem so far. My MS Pro 2500w will be in my hands next week. Mine was a 2500 watt and cut out on me and fried, so it definitely is both that have an issue. this was from the most recent batch shipped by Ehweels 1 Quote Link to comment Share on other sites More sharing options...
seage Posted June 12, 2020 Share Posted June 12, 2020 Well this is disheartening since there will be 2 gotway wheels in my house soon. I hope they fix these issues before we get them because what the hecc? 2 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted June 12, 2020 Share Posted June 12, 2020 (edited) Didn't the MSP come with LG M50T cells from the start? That would mean the cells are not the problem (also for the Nikola-with-the-Panasonics fire then). That would mean there is a different problem (which is both good and bad). Or am I conflating two different things here? Edited June 12, 2020 by meepmeepmayer 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Cody Posted June 12, 2020 Popular Post Share Posted June 12, 2020 Everything is fine, there is fuse, there is Safety secutity mosfets inside, pack monitor ect... But they don't consider to have separation betweens cell so mostly its an 8v short circuit between the cell case that ocur with vibration ... All battery factorkyu rely on the small shrink plastic tube of cell case for insulation ? WTF, I always saw paper before on battery packs, paper was here from the ni-CD pack for screw driver, but now there is NOTHING ... WTF ?! Some user have more plastic, like this wet water pack, no troubles hapend... soo.. Batteries FAB are to plain ! 4 Quote Link to comment Share on other sites More sharing options...
Popular Post Chriull Posted June 12, 2020 Popular Post Share Posted June 12, 2020 4 minutes ago, Cody said: Everything is fine, there is fuse, there is Safety secutity mosfets inside, pack monitor ect... Unfortionately not. GW have neither fuse nor overcurrent protection mosfets. For internal shorts by cell wrap insulation gone bad no EUC BMS provides protection measures. Some could have cell temperature monitoring (?inmotion/ninebot?) But no idea how they could warn before a thermal runaway in such a case... BTW - GW uses plastic frames for their 21700 cells (seen in ecodrifts teardown of the ?nikola?) to safely seperate the cells. 4 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted June 12, 2020 Share Posted June 12, 2020 (edited) 16 minutes ago, Cody said: But they don't consider to have separation betweens cell so mostly its an 8v short circuit between the cell case that ocur with vibration ... Great find!!! So that's the issue? Putting 21700s in a shell designed for 18650s Looks like this isn't a problem with Gotway standard wheels, but only Ali modders? Edited June 12, 2020 by meepmeepmayer 2 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted June 17, 2020 Share Posted June 17, 2020 On 6/12/2020 at 4:45 AM, Cody said: All battery factory rely on the small shrink plastic tube of cell case for insulation ? In the 18650 packs I've disassembled, yes. But if the cells are mounted securely, there should be no chafing... On 6/12/2020 at 5:00 AM, meepmeepmayer said: Great find!!! So that's the issue? @Cody is discussing a short-circuit of a cell group caused by contact between the metal cylinders of two adjacent cells in a pack. If this were to happen, it could cause short-circuit discharge of a cell group and associated heating. If severe, this results in a pack fire. The only 'pack fires' we've seen reported lately were the Monster (3rd-party pack) and the Nik+ (early production Panasonic 21700 pack). But instead, this thread is discussing MSP failures. There have been no pack fires reported with MSP, so 'No,' cell-to-cell shorting would not explain the MSP failures. 3 Quote Link to comment Share on other sites More sharing options...
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