Lunar Posted November 21, 2018 Share Posted November 21, 2018 Hey guys, just got my inmotion V10 and the battery won't charge past 91%. The device will never informs me that the charge is complete like it's suppose to. I'm in the period (new wheel) where I'm suppose to drain it (not all the way to 0, but low) then bring it back up to a higher percentage. The first time this happened, I didn't think I left it on enough. The second time, I left it on for hours and it just wouldn't rise past 91%. I reached out to inmotion, but I was wondering if anyone else ran into this issue, and if there was a fix. Thank you! Quote Link to comment Share on other sites More sharing options...
Popular Post Chriull Posted November 21, 2018 Popular Post Share Posted November 21, 2018 2 minutes ago, Lunar said: Hey guys, just got my inmotion V10 and the battery won't charge past 91%. Afair that's either a charger issue (misadjusted - not enough maximum voltage), unbalanced cells in the battery pack or a misadjusted voltage measurement on the mainboard. The charger can easily be checked with a multimeter - without load it should reach 84V. Battery pack for a new wheel should be ok - but who knows, quality control is not perfect... 10 minutes ago, Lunar said: The device will never informs me that the charge is complete like it's suppose to. Normally the charger changes the led color if the charging current goes below some specifig threshold - this has to happen sometimes as the battery pack gets full. So the chances rise that a new charger could solve the problem?! Or do you mean that the V10 does not inform you? 11 minutes ago, Lunar said: I'm in the period (new wheel) where I'm suppose to drain it (not all the way to 0, but low) then bring it back up to a higher percentage. Who supposes this? Never heard of such a thing in regard to li ion batteries (except the ones with "smart metering", which is not used with EUCs by now afaik). Cell balancing happens (?at the end of?) after the full charge. 14 minutes ago, Lunar said: The second time, I left it on for hours and it just wouldn't rise past 91%. I reached out to inmotion, but I was wondering if anyone else ran into this issue, and if there was a fix. Thank you! There were some topics like this lately (don't remember if also for the V10/Inmotion), so there should be some experience available here of frequent causes. 1 3 Quote Link to comment Share on other sites More sharing options...
Lunar Posted November 21, 2018 Author Share Posted November 21, 2018 Thank you for your input! I just got the information from their main site about the battery charging when you first acquire the device, so I'm not too sure. The charger says LED:GREEN<400mA and the light was indeed green. I guess I'll have to use my multi-meter. The V10 is suppose to inform me when the charge is complete with a sound. There's a sound for it in the sound effects that says, "charge complete". That's what I meant, sorry for the confusion. I attached a pic of the charger info just in case. Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted November 21, 2018 Share Posted November 21, 2018 On my first wheel, the battery wouldn't charge to 100% right away. It needed a few steps of charging until the charger goes green, then draining the batteries a little bit, and then it would charge to a higher percentage. After a few times, it went to 100% and everything was good from then on. So you could balance on it for a minute, even just indoors, to get away from "green light", and see if it charges to a higher percentage after that. If yes, it will fix itself this way. Some people also reported behavior like this, but it was very rare and was long ago, but maybe you're lucky. Can you link to their battery info site? Never heard of the thing you mention. Sounds strange. 2 Quote Link to comment Share on other sites More sharing options...
Chriull Posted November 21, 2018 Share Posted November 21, 2018 (edited) 18 minutes ago, Lunar said: Thank you for your input! I just got the information from their main site about the battery charging when you first acquire the device, so I'm not too sure. The charger says LED:GREEN<400mA and the light was indeed green. I guess I'll have to use my multi-meter. Would be the easiest option if the charger just delivers not enough voltage (the specified 84V) - either a new one or you are able to adjust it: (1) Quote The V10 is suppose to inform me when the charge is complete with a sound. There's a sound for it in the sound effects that says, "charge complete". That's what I meant, sorry for the confusion. As the V10 is not charged fully, he has no reason to inform of a completed charge . So hopefully it's a misadjusted charger or some battery balancing is needed as posted from @meepmeepmayer. The most unfortionate case would be the voltage measurement at the mainboard being off... But let's see if you can "resolve" the first two points... Edit: (1) would'nt recommend that since everything is still under warranty Edited November 21, 2018 by Chriull Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted November 21, 2018 Share Posted November 21, 2018 Yes, new wheel = you find a quick and easy fix, or it's the seller's job to do more. Let's hope it's the case of strange battery cell/BMS behavior that will go away once 100% is reached. I'm sure the seller will have some more ideas what you can try. @Chriull Do Inmotions measure charging voltage on the board? On Gotways afaik, charging goes right to the batteries, no board involvement (or even connection). So it's BMS only. KS I believe goes through the board. IM too? Quote Link to comment Share on other sites More sharing options...
Chriull Posted November 21, 2018 Share Posted November 21, 2018 31 minutes ago, meepmeepmayer said: Chriull Do Inmotions measure charging voltage on the board? On Gotways afaik, charging goes right to the batteries, no board involvement (or even connection). So it's BMS only. KS I believe goes through the board. IM too? Not the charging voltage directly, but they measure the battery voltage supplied to the board. This is almost the charging voltage - just some voltage drop along the protection circuits. Imo the "natural"/easiest solution to play some sound by firmware once charging is done?! 1 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted November 21, 2018 Share Posted November 21, 2018 Makes sense, the board must know to play a sound. Never mind Quote Link to comment Share on other sites More sharing options...
Jason Jiao Posted November 22, 2018 Share Posted November 22, 2018 Could you pls share the Serial Number of your V10? This is a software bug, actually your V10 battery and charger are OK. Pls contact service@imscv.com, cc jason@imscv.com, I will ask my colleague to arrange a USB Key for you, and tell you how to fix it. 1 1 Quote Link to comment Share on other sites More sharing options...
Lunar Posted November 22, 2018 Author Share Posted November 22, 2018 15 hours ago, Jason Jiao said: Could you pls share the Serial Number of your V10? This is a software bug, actually your V10 battery and charger are OK. Pls contact service@imscv.com, cc jason@imscv.com, I will ask my colleague to arrange a USB Key for you, and tell you how to fix it. Thank you Jason Jiao! My SN is 1270985F12310070. I'll email those addresses now. Thank you guys for you your input. I just want to remind you guys, if I don't reply in time it's due to the forum restricting my posts per day. Thanks again Jason! 1 Quote Link to comment Share on other sites More sharing options...
Jason Jiao Posted November 24, 2018 Share Posted November 24, 2018 On 11/23/2018 at 1:51 AM, Lunar said: Thank you Jason Jiao! My SN is 1270985F12310070. I'll email those addresses now. Thank you guys for you your input. I just want to remind you guys, if I don't reply in time it's due to the forum restricting my posts per day. Thanks again Jason! Hi Lunar, we have got your email, My colleague will arrange to ship the tools to you soon, and offer the tracking number. 1 Quote Link to comment Share on other sites More sharing options...
UniVehje Posted April 19, 2019 Share Posted April 19, 2019 I've also got this issue. Suddenly my battery is not charging past 93%. I've send email to @Jason Jiao about this also. I hope it's a bug that can be fixed. Quote Link to comment Share on other sites More sharing options...
UniVehje Posted April 19, 2019 Share Posted April 19, 2019 @Lunar Did you get this solved? Quote Link to comment Share on other sites More sharing options...
gon2fast Posted August 9, 2019 Share Posted August 9, 2019 Has anyone been able to apply the battery fix via the USB dongle and if so can you provide instructions? I have the dongle, but my laptop(s) are not recognizing the unit. Quote Link to comment Share on other sites More sharing options...
Zeno74 Posted September 5, 2019 Share Posted September 5, 2019 (edited) I’m having the same issue, battery not charging back to 100% but stopping at 95% what do I have to do? I have a v10f Edited September 5, 2019 by Zeno74 Quote Link to comment Share on other sites More sharing options...
Chriull Posted September 5, 2019 Share Posted September 5, 2019 2 hours ago, Zeno74 said: I’m having the same issue, battery not charging back to 100% but stopping at 95% what do I have to do? I have a v10f On 11/21/2018 at 4:03 PM, Chriull said: Afaij that's either a charger issue (misadjusted - not enough maximum voltage), unbalanced cells in the battery pack or a misadjusted voltage measurement on the mainboard. The charger can easily be checked with a multimeter - without load it should reach 84V. Quote Link to comment Share on other sites More sharing options...
Zeno74 Posted September 11, 2019 Share Posted September 11, 2019 Guys thanks for the suggestion, charger was 82,2 V and I had my V8 charger that is compatible and has a voltage of 84,3 V! The wheel is back to 100% ;-) 1 Quote Link to comment Share on other sites More sharing options...
( _ ) Alexey Posted October 10, 2019 Share Posted October 10, 2019 I have the same issue. I have a relatively new V10F with 250km on it, never charges fully, the last blue battery LED on the wheel continues to blink while charger LED turns from red to green. Not sure if it's related but the wheel also doesn't reach 40km/h, yells at me at 34-35 km/h and tilts back a bit. Checked with GPS on flat surface with no wind. I'm 67kg. And the range is around 40km, with 90-100 advertised. Charger is the original one, marked 84V and multimeter shows 84.1V in open circuit. @Jason Jiao could you please advise? Should I submit a ticket somewhere? Thanks. 1 Quote Link to comment Share on other sites More sharing options...
alcatraz Posted October 11, 2019 Share Posted October 11, 2019 16 hours ago, ( _ ) Alexey said: I have the same issue. I have a relatively new V10F with 250km on it, never charges fully, the last blue battery LED on the wheel continues to blink while charger LED turns from red to green. Not sure if it's related but the wheel also doesn't reach 40km/h, yells at me at 34-35 km/h and tilts back a bit. Checked with GPS on flat surface with no wind. I'm 67kg. And the range is around 40km, with 90-100 advertised. Charger is the original one, marked 84V and multimeter shows 84.1V in open circuit. @Jason Jiao could you please advise? Should I submit a ticket somewhere? Thanks. What charge percentage do you see in the inmotion app after a night on the charger? Check the max speed setting in the app too. Quote Link to comment Share on other sites More sharing options...
UniVehje Posted October 11, 2019 Share Posted October 11, 2019 17 hours ago, ( _ ) Alexey said: I have the same issue. I have a relatively new V10F with 250km on it, never charges fully, the last blue battery LED on the wheel continues to blink while charger LED turns from red to green. Not sure if it's related but the wheel also doesn't reach 40km/h, yells at me at 34-35 km/h and tilts back a bit. Checked with GPS on flat surface with no wind. I'm 67kg. And the range is around 40km, with 90-100 advertised. Charger is the original one, marked 84V and multimeter shows 84.1V in open circuit. @Jason Jiao could you please advise? Should I submit a ticket somewhere? Thanks. The battery might be full but there is a bug that sometimes shows less percentage. It has to be fixed by a hardware usb stick. Contact your dealer or Inmotion HQ. Make sure you are on "Comfort" mode. In "Classic" mode there is still a bug that limits the top speed to that. Your range is normal. That advertised range is in special conditions and all the brands have similar discrepancy between advertised and real life. Most wheels consume about 15 wh per kilometre, depending heavily on rider weight, riding style, speed, terrain, hills etc. 1 Quote Link to comment Share on other sites More sharing options...
Zeno74 Posted October 16, 2019 Share Posted October 16, 2019 A question to the Inmotion representatives, are you substituting the chargers with this issue? Mine is in warranty, the person that sold me the V10F is not really responsive on this... Thanks a lot! Quote Link to comment Share on other sites More sharing options...
alcatraz Posted October 23, 2019 Share Posted October 23, 2019 I'm now also experiencing this problem on my V8. With 82.4V on the battery (cells fairly balanced around 4.08-4.12V) the wheel won't take more of a charge even after a night on the charger. I have two V8's and two chargers so I know for sure the charger is fine outputting the right voltage. I've measured them with a multimeter. It worked fine for 10000km so I don't understand how it's a software bug. I've been running the same firmware for 8000km. Did anyone get this issue solved? 1 Quote Link to comment Share on other sites More sharing options...
alcatraz Posted November 26, 2019 Share Posted November 26, 2019 Actually it solved itself. Maybe the wheel is in an odd mode and just needs some time to get out of it. 2 Quote Link to comment Share on other sites More sharing options...
acidbyte Posted December 22, 2019 Share Posted December 22, 2019 I, too, having the same issue. App shows battery hovering between 88 and 91. Just won't go 100. Any assistance will be appreciated. Quote Link to comment Share on other sites More sharing options...
alex5454 Posted June 11, 2020 Share Posted June 11, 2020 (edited) also I always have the same problem with the v10 the multimeter marks the charger at 82V and the V10 does not go beyond 87% -90% very soon I will try a new charger Edited June 11, 2020 by alex5454 Quote Link to comment Share on other sites More sharing options...
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