Donafello Posted September 24, 2016 Share Posted September 24, 2016 This is crazy. Now in his unboxing video he had a extra board sent to him so I don't know if he was messing with it or not but this is concerning Link to comment Share on other sites More sharing options...
Greg Spalding Posted September 24, 2016 Share Posted September 24, 2016 oh my goodness happy you shared sad for what it shows not sure what to make of it at all Link to comment Share on other sites More sharing options...
Greg Spalding Posted September 24, 2016 Share Posted September 24, 2016 But he must have fixed that because he just posted this video if you moments ago Maybe that's why he have the new board Link to comment Share on other sites More sharing options...
Cloud Posted September 24, 2016 Share Posted September 24, 2016 There is already many reports of the control board frying on msuper v3. A russian distributor reported 3 CB failures out of 20 units sold only very recently. Another russian rider who bought 1640 through aliexpress also reported a failure. This is troubling. also it appears that gotway still doesnt have fuses on the batteries or the CB? Also appears that the CB for 1640 version is the same as 820wh version Link to comment Share on other sites More sharing options...
nomad Posted September 24, 2016 Share Posted September 24, 2016 That's some bad statistics Were all three fryed boards the 1640Wh version, if so it seems that board can't handle the extra current? (I have the 820Wh version) Link to comment Share on other sites More sharing options...
EcoDrift Posted September 24, 2016 Share Posted September 24, 2016 We will get on next week Gotway Msuper V3 1600 Wh with 72 V motors)) Link to comment Share on other sites More sharing options...
US69 Posted September 24, 2016 Share Posted September 24, 2016 2 hours ago, Cloud said: There is already many reports of the control board frying on msuper v3. A russian distributor reported 3 CB failures out of 20 units sold only very recently. Another russian rider who bought 1640 through aliexpress also reported a failure. This is troubling. also it appears that gotway still doesnt have fuses on the batteries or the CB? Also appears that the CB for 1640 version is the same as 820wh version Hmmh... while a 820wh version with 16s4p can only generate about 40 Amps...the 1640/8p can bring out 80Amps... As this board/motor with 12Mos is the same as ACM i can not see why the 820wh version should bring up more burned boards then ACM....i suggest with 1640wh its another thing... So will be nice to see what then the 1600wh version with 84 volt will produce :-) welcome to the world of beta-testing ;-) Link to comment Share on other sites More sharing options...
OliverH Posted September 24, 2016 Share Posted September 24, 2016 Riding on the edge.. We're unpaid crash test dummies - I said this before. Properly tested and it would hit the market in a modified version. This failures are easy to find in quality testing if run through defined use cases on a bench. A burned Mosfet/ motordriver would not be a problem with PLEV standard as you've two for redundancy/ fail over - for reason. Link to comment Share on other sites More sharing options...
Greg Spalding Posted September 24, 2016 Share Posted September 24, 2016 2 hours ago, EcoDrift said: We will get on next week Gotway Msuper V3 1600 Wh with 72 V motors)) honestly, i have NO idea how i'll believe these will be any better DIFFRERENT? YES..... better? who knows very, very disappointing. these wheels are VERY EXPENSIVE Link to comment Share on other sites More sharing options...
OliverH Posted September 24, 2016 Share Posted September 24, 2016 27 minutes ago, Greg Spalding said: honestly, i have NO idea how i'll believe these will be any better DIFFRERENT? YES..... better? who knows very, very disappointing. these wheels are VERY EXPENSIVE Newer is better by law or do someone change the law? Link to comment Share on other sites More sharing options...
EcoDrift Posted September 24, 2016 Share Posted September 24, 2016 2 hours ago, KingSong69 said: Hmmh... while a 820wh version with 16s4p can only generate about 40 Amps...the 1640/8p can bring out 80Amps... As this board/motor with 12Mos is the same as ACM i can not see why the 820wh version should bring up more burned boards then ACM....i suggest with 1640wh its another thing... So will be nice to see what then the 1600wh version with 84 volt will produce :-) welcome to the world of beta-testing ;-) Why do you write 84 V? What is it?)) Link to comment Share on other sites More sharing options...
HEC Posted September 24, 2016 Share Posted September 24, 2016 7 hours ago, Donafello said: This is crazy. Now in his unboxing video he had a extra board sent to him so I don't know if he was messing with it or not but this is concerning Well from his unboxed video he seems pretty large person and he was riding id deep sand there. Plus he seems to be already aware of the CB issues as he ordered the spare CB right away. Link to comment Share on other sites More sharing options...
HEC Posted September 24, 2016 Share Posted September 24, 2016 13 minutes ago, EcoDrift said: Why do you write 84 V? What is it?)) There is no such thing as "72v" version of V3 - only 67.2V / 1640Wh (16S8P 128 cells) and 84V / 1600Wh (20S6P 120 cells). GW / @Linnea Lin Gotway / @Jane Mo claims both models to have same motors though they're both sale staff so might have no clue what they're really talking about Link to comment Share on other sites More sharing options...
EcoDrift Posted September 24, 2016 Share Posted September 24, 2016 8 minutes ago, HEC said: There is no such thing as "72v" version of V3 - only 67.2V / 1640Wh (16S8P 128 cells) and 84V / 1600Wh (20S6P 120 cells). GW / @Linnea Lin Gotway / @Jane Mo claims both models to have same motors though they're both sale staff so might have no clue what they're really talking about 60-67.2 maximum 72-84 maximum??? 67.2 and 84 V its max power. But I can mistake in it. Link to comment Share on other sites More sharing options...
HEC Posted September 24, 2016 Share Posted September 24, 2016 1 minute ago, EcoDrift said: I already worked with Jane Mo and director Lin less then one year. And I realized one simple thing - they often do not understand what they write or say. 60-67.2 maximum 72-84 maximum??? Agree Though 67.2V is: 16x3.7V (nominal voltage) = 59.2V rounded up to 60V and 16x4.2V = 67.2V max 84V is 20x3.7V = 74V nominal and 20x4.2 = 84V max So yes - the standard model could be with "60V" motor and the 1600Wh with "72V" motor to have sufficient voltage even close to empty batteries (and assuming CB is "lowering" the voltage sent to motor which I'm not sure though that's the case as that would lead to additional / unnecessary power loses so it's most likely only down to PWM control). Link to comment Share on other sites More sharing options...
OliverH Posted September 24, 2016 Share Posted September 24, 2016 26 minutes ago, HEC said: Well from his unboxed video he seems pretty large person and he was riding id deep sand there. Plus he seems to be already aware of the CB issues as he ordered the spare CB right away. The control board and the firmware should handle that. Behaviour handling/ tresholdd? Oh sorry we forget that? Couldn't believe that! Link to comment Share on other sites More sharing options...
Donafello Posted September 25, 2016 Author Share Posted September 25, 2016 I was thinking of selling my 850wh but to be honest I might hold on to it just to see how this works out. I have only seen one video of the 1640wh. Are there even anymore out there? Link to comment Share on other sites More sharing options...
sbouju Posted September 25, 2016 Share Posted September 25, 2016 12 minutes ago, Donafello said: I have only seen one video of the 1640wh Zero, for me... A link available? Link to comment Share on other sites More sharing options...
Donafello Posted September 25, 2016 Author Share Posted September 25, 2016 14 minutes ago, sbouju said: Zero, for me... A link available? Link to comment Share on other sites More sharing options...
MaxLinux Posted September 25, 2016 Share Posted September 25, 2016 On 9/24/2016 at 11:35 AM, Cloud said: There is already many reports of the control board frying on msuper v3. A russian distributor reported 3 CB failures out of 20 units sold only very recently. Another russian rider who bought 1640 through aliexpress also reported a failure. This is troubling. This is unacceptable. This could EASILY be avoided by testing. Why is GW unwilling to TEST its products? Link to comment Share on other sites More sharing options...
HEC Posted September 25, 2016 Share Posted September 25, 2016 9 minutes ago, MaxLinux said: This is unacceptable. This could EASILY be avoided by testing. Why is GW unwilling to TEST its products? Because some customers will gladly do it for them and even pay for the "pleasure" ... Link to comment Share on other sites More sharing options...
Sketch Posted September 25, 2016 Share Posted September 25, 2016 So is the 820wh version proving to have more success and less problems? Just wondering if there is a version that would be a better bet without having problems. Link to comment Share on other sites More sharing options...
HEC Posted September 25, 2016 Share Posted September 25, 2016 34 minutes ago, Sketch said: So is the 820wh version proving to have more success and less problems? Just wondering if there is a version that would be a better bet without having problems. I doubt there are any differences between the 820 and 1640 models apart of the doubled battery capacity and higher weight. Link to comment Share on other sites More sharing options...
Cloud Posted September 25, 2016 Share Posted September 25, 2016 2 hours ago, MaxLinux said: This is unacceptable. This could EASILY be avoided by testing. Why is GW unwilling to TEST its products? They are always rushing to issue the new model, so they can start cashing in on the new orders, so they dont do enough testing and like HEC said, they know that the first customers will provide feedback Link to comment Share on other sites More sharing options...
Linnea Veteran Posted September 26, 2016 Share Posted September 26, 2016 Our Msuper V3 1600wh oversea version is being testing at the moment, the first batch will be sent out near this week. Msuper V3 1600wh model main board is different with 820wh version. We tested all models before shipping, but anyhow, it is electric products, some unexpected problem is ineviatble, but surely we are trying our best effort to solve any unexpected problem. Link to comment Share on other sites More sharing options...
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