Girth Brooks Posted April 3, 2019 Share Posted April 3, 2019 Update: Both batteries back to 100% after a normal charge and the wheel is back to normal. I still see no option to update the BMS firmware though. Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted April 3, 2019 Share Posted April 3, 2019 2 hours ago, Girth Brooks said: Update: Both batteries back to 100% after a normal charge and the wheel is back to normal. I still see no option to update the BMS firmware though. Isn't there an About screen, or something similar, that shows the firmware version. Every time I've updated it's because I got an auto-update notification. Sorry, don't have my phone or wheel available to look. 1 Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 6, 2019 Share Posted April 6, 2019 Battery 2 not communicating again. How do I get a BMS update. Can anyone tell me?? 1 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted April 6, 2019 Share Posted April 6, 2019 17 minutes ago, Girth Brooks said: Battery 2 not communicating again. How do I get a BMS update. Can anyone tell me?? All my firmware updates were either through a prompt that occurs when starting the app or by clicking the Update Firmware button. I assume that you have to have an Internet connection for any of this to work. That's all I've got. Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 6, 2019 Share Posted April 6, 2019 I'm thinking of checking the battery connections themselves. Maybe it's somehow loosened. @Marty Backe update firmware just says firmware up to date. 1 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted April 6, 2019 Share Posted April 6, 2019 37 minutes ago, Girth Brooks said: I'm thinking of checking the battery connections themselves. Maybe it's somehow loosened. @Marty Backe update firmware just says firmware up to date. But your firmware (control board and BMS) version numbers are not the latest? Too bad there isn't a way to force an update. Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 6, 2019 Share Posted April 6, 2019 BMS is still at 1.2 @Marty Backe 1 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted April 6, 2019 Share Posted April 6, 2019 3 minutes ago, Girth Brooks said: BMS is still at 1.2 @Marty Backe I've heard sometimes you either have to have a Wi-Fi connecton on your phone or the other way around, only cell phone data, for the apps to connect to the home-base (China). Otherwise, I've got nothing Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 10, 2019 Share Posted April 10, 2019 @houseofjob do you know if the BMS board can be purchased for the Z10? Quote Link to comment Share on other sites More sharing options...
houseofjob Posted April 10, 2019 Author Share Posted April 10, 2019 5 hours ago, Girth Brooks said: @houseofjob do you know if the BMS board can be purchased for the Z10? Why not? AliExpress / Green Fashion: https://s.click.aliexpress.com/e/pV3Y7r6 1 Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 20, 2019 Share Posted April 20, 2019 Does anyone know if or where this board pictured can be bought? Quote Link to comment Share on other sites More sharing options...
Mykhailo Posted April 24, 2019 Share Posted April 24, 2019 On 4/6/2019 at 7:10 PM, Marty Backe said: I've heard sometimes you either have to have a Wi-Fi connecton on your phone or the other way around, only cell phone data, for the apps to connect to the home-base (China). Otherwise, I've got nothing  I still use the bms firmware v1.1.2 and I noticed that I cannot update to 1.1.7 anymore. The update just disappeared from the app, though earlier it was appearing every  time I launched nb app. At certain point I updated the app to v. 4.5.7 (iOS), but I cannot say if the fw update disappeared after update or earlier. My z10 was produced during week 43 and came with fw 1.0.5 out of box. The bms update was appearing both on WiFi and 3G connection. Does still have a possibility to update the bms to 1.1.7? Is it possible that nb cancelled this update as it didn’t actually solve the issue of battery draining when the device is switched off? 2 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted April 24, 2019 Share Posted April 24, 2019 32 minutes ago, Mykhailo said: I still use the bms firmware v1.1.2 and I noticed that I cannot update to 1.1.7 anymore. The update just disappeared from the app, though earlier it was appearing every  time I launched nb app. At certain point I updated the app to v. 4.5.7 (iOS), but I cannot say if the fw update disappeared after update or earlier. My z10 was produced during week 43 and came with fw 1.0.5 out of box. The bms update was appearing both on WiFi and 3G connection. Does still have a possibility to update the bms to 1.1.7? Is it possible that nb cancelled this update as it didn’t actually solve the issue of battery draining when the device is switched off? I can say that I never noticed any behavior changes with any of the control or bms updates. So you can feel comforted in knowing that you're not missing out on anything. My Z10 still drains the battery every day. 1 Quote Link to comment Share on other sites More sharing options...
houseofjob Posted April 24, 2019 Author Share Posted April 24, 2019 55 minutes ago, Mykhailo said: Is it possible that nb cancelled this update as it didn’t actually solve the issue of battery draining when the device is switched off? I think NB cancelled the 1.1.7 update, as I've heard similar reports to your's, not being able to see the update. FWIW, I agree with Marty, on feel, nothing noticeably special was added with this update IMHO. The major performance update was early on, around the launch of the production model Z10 I think. 1 Quote Link to comment Share on other sites More sharing options...
Girth Brooks Posted April 24, 2019 Share Posted April 24, 2019 FWIW to all of you Z10 owners that should be concerning, I have never had any issues with anything on my Z10. I have never let it get below 20% charge at any point. I still have a battery that is not communicating at all. The battery still has a charge as tested with a volt meter but it simply isn't showing up in the BMS through Wheel log or the Ninebot App There is no way to charge the battery though because the BMS will not recognize it. I have tried everything possible. 1 Quote Link to comment Share on other sites More sharing options...
TuN3M@N Posted May 2, 2019 Share Posted May 2, 2019 (edited) On 4/24/2019 at 7:06 PM, Mykhailo said: I still use the bms firmware v1.1.2 and I noticed that I cannot update to 1.1.7 anymore. The update just disappeared from the app, though earlier it was appearing every  time I launched nb app. At certain point I updated the app to v. 4.5.7 (iOS), but I cannot say if the fw update disappeared after update or earlier. My z10 was produced during week 43 and came with fw 1.0.5 out of box. The bms update was appearing both on WiFi and 3G connection. Does still have a possibility to update the bms to 1.1.7? Is it possible that nb cancelled this update as it didn’t actually solve the issue of battery draining when the device is switched off? Maybe that there is a connection between the disappearing of the latest BMS Update and the "abnormal power supply (29)" bug wich stopped my wheel during the last days...? Z10 "abnormal power supply (29)" bug Edited May 2, 2019 by TuN3M@N Quote Link to comment Share on other sites More sharing options...
Popular Post Filalapat Posted May 20, 2019 Popular Post Share Posted May 20, 2019 (edited) Since the standby drain tests released here last month, I've been trying to figure out exactly where this current is going to drain the battery during a few weeks, in order to create a fix. So I used the same method of measurement over long periods of time to get a sufficient accuracy. As a reminder, the previous measurements had shown a discharge rate of the battery by a ten factor when its terminals are completely disconnected, by all its ports. (voltage loss approx. 0.468mV/h) In this state, only the BMS drains the battery and can be expected to completely empty it in more than 30 months. (3 to 4 months x10) I tried to find out which of the battery connections induces most of this external drain.  With XT60 connectors connected  ; 2-pin and 4-pin connectors disconnected  : After 14 days 5h 20', the average voltage of my batteries dropped by 0.175V The voltage loss is 0.012V/day, so 0.513mV/h. It is therefore clear that the battery drain is not caused by the power connectors, which opens the way to a easy fix to implement.  With XT60 connectors and the 4-pin charge connector connected  ; 2-pin battery communication connector disconnected  : After 9 days exactly, the average voltage of my batteries dropped by 0.09V The voltage loss is 0.01V/day, so 0.416mV/h. The 4-pin connector (charging connector) does not induce current leakage either.  It is therefore easy to conclude that the external losses to the battery only flows through the 2-pin communication connector. My graph has not changed much, it is just a little more precise (or not...): With these conclusions, I just implemented and test an electronic patch to reduce very strongly (by a 10 factor) this battery drain, which brings it back to an acceptable value. I post this in a new topic :   Edited May 20, 2019 by Filalapat 4 1 Quote Link to comment Share on other sites More sharing options...
Marty Backe Posted May 20, 2019 Share Posted May 20, 2019 6 minutes ago, Filalapat said: Since the standby drain tests released here last month, I've been trying to figure out exactly where this current is going to drain the battery during a few weeks, in order to create a fix. So I used the same method of measurement over long periods of time to get a sufficient accuracy. As a reminder, the previous measurements had shown a discharge rate of the battery by a ten factor when its terminals are completely disconnected, by all its ports. (voltage loss approx. 0.468mV/h) In this state, only the BMS drains the battery and can be expected to completely empty it in more than 30 months. (3 to 4 months x10) I tried to find out which of the battery connections induces most of this external drain.  With XT60 connectors connected  ; 2-pin and 4-pin connectors disconnected  : After 14 days 5h 20', the average voltage of my batteries dropped by 0.175V The voltage loss is 0.012V/day, so 0.513mV/h. It is therefore clear that the battery drain is not caused by the power connectors, which opens the way to a easy fix to implement.  With XT60 connectors and the 4-pin charge connector connected  ; 2-pin battery communication connector disconnected  : After 9 days exactly, the average voltage of my batteries dropped by 0.09V The voltage loss is 0.01V/day, so 0.416mV/h. The 4-pin connector (charging connector) does not induce current leakage either.  It is therefore easy to conclude that the external losses to the battery only flows through the 2-pin communication connector. My graph has not changed much, it is just a little more precise (or not...): With these conclusions, I just implemented and test an electronic patch to reduce very strongly (by a 10 factor) this battery drain, which brings it back to an acceptable value. I post this in a new topic : A one-electronic component solution to fix the drain of the One Z-series Wow, fantastic sleuthing and very useful information I look forward to seeing your patch solution 1 Quote Link to comment Share on other sites More sharing options...
TuN3M@N Posted May 24, 2019 Share Posted May 24, 2019 (edited) Nice to see that some serious engineering power is located in the group. Nice and simple to rebuild workaround. BUT are we really talking about a real life problem? From the battery view it is far better that it drains some mAh each day. Nothing is as evil as storing full powered batteries for a long time... So the solution to charge the wheel and put it charged in the storage all over winter time is by far the worst idea. If you worry about deep discharge and if you don't want to bother you family buy a wifi/programmable power socket and that's it... A 10USD solution. Edited May 24, 2019 by TuN3M@N 3 Quote Link to comment Share on other sites More sharing options...
SJ Z10 Posted July 16, 2019 Share Posted July 16, 2019 On 4/4/2019 at 1:42 AM, Girth Brooks said: I just had a battery issue (first of any issue) with my Z10 just now on lunch. Said "bad communication with battery 2". Battery one showed 78% and battery 2 showed 20% before not showing up at all. I luckily have my charger with me. I'm going to charge it and see if it persists. I have not updated the BMS firmware. I'm still on v1.1.2. My Z10 has similar issues, where the left and right battery drains at different rates - or at least it think it does. Sometimes it equilizes after turning it off and on again. Anybody found a solution to this? Quote Link to comment Share on other sites More sharing options...
Damarafaka Posted August 30, 2019 Share Posted August 30, 2019 On 4/3/2019 at 6:42 PM, Girth Brooks said: I just had a battery issue (first of any issue) with my Z10 just now on lunch. Said "bad communication with battery 2". Battery one showed 78% and battery 2 showed 20% before not showing up at all. I luckily have my charger with me. I'm going to charge it and see if it persists. I have not updated the BMS firmware. I'm still on v1.1.2. Seems this issue is becoming more and more common. After 1000km with my Z10 just experienced unbalanced batteries/cells alarm and wheel almost threw me off. Managed to update to BMS v1.1.7 (luckily update option popup was still active) and for the next few kms issue has not reproduced although as some have already mentioned, the problem reappears after time or after falling below certain battery percentage. Will follow up. Maybe it will be possible to pinpoint if it's really a battery cell problem (strange when this status changes constantly/fixed-unfixed???) or a connection issue, etc. Quote Link to comment Share on other sites More sharing options...
darkflame808 Posted September 7, 2019 Share Posted September 7, 2019 Regarding the "lack of updates" issue, here's one thing I can suggest. Try taking your wheel (and phone) to a friends house or to a place like starbucks/mcdonalds where they have free wifi. Case in point, there might be a communication block between your ISP and the servers that host the update (this is a chinese company after all, sometimes data can have difficulties making it across their great internet wall so to speak). Â I've aged quite a bit trying to update an expensive piece of equipment and after slamming the company to hell and back they went out of their way to "resolve the issue" only to tell me "We don't see your serial number making any attempts to connect to our update server". So I went to starbucks and sure enough it went through. A call to my ISP was useless since they just gave me the run around. It got so bad that the company actually changed it's update procedures to include the updates within the application since that would be pushed to devices via apple and google and not hosted on some server with a possible firewall somewhere in the middle. Â Hope this helps. 1 Quote Link to comment Share on other sites More sharing options...
Brandin J. Mercer Posted January 2, 2020 Share Posted January 2, 2020 Is the phantom power drain still an issue on the z10? also would it be possible to install a battery cutoff switch. that way when your finished charging it, you can flip the switch and terminate the batter from anything that would draw power for longer / safer storage sessions? I remember having to do this to old military vehicles so their batteries wouldn't drain in the motorpool. 1 Quote Link to comment Share on other sites More sharing options...
Lefteris Posted February 1, 2020 Share Posted February 1, 2020 I think myself as a lucky owner of a Z10 that after 2.700 km nothing happened, but this morning (gmt+2), i got my gear on, helmet and all, pressed the Z10 button.. and nothing, natha.. caput.. (insert small heart attack here) Yesterday i left it with something less than 25% if i remember correctly, well i connected the charger, and... nothing happened.. (insert another small heart attach here, man..) After about 30 seconds in, thinking all things wrong with this picture, i un-plug the charger cable from the power brick, while it was on the wheel and reconnect it, and... It started charging.. (insert beach and sunset picture here) Man, what was that thing, vampire drain under 10% ?? batteries reported back wrong ?? i've unpluged it half hour ago, all seems ok, batteries healthy and with 1% difference, voltage ok.. Am i going nuts or this wheel is f'n with me!? May was the charger cable, but it was green-light when i tried.. Your thoughts?! 1 Quote Link to comment Share on other sites More sharing options...
xSAMCOx Posted January 17, 2022 Share Posted January 17, 2022 My Z10 has a slow vampire drain, i do check it now n then in storrage for the Winter. Quote Link to comment Share on other sites More sharing options...
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