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Segway General Discussion General discussion related to any model of Segways, miniPROs, or Ninebots. Please do not post non-Segway technology posts here; use the technology forum instead.

Old 01-08-2019, 05:43 AM   #1
Enno5
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Default Ninebot ES4 top speed issue

I have my ES4 for 3 months now with a total mileage of 1100+ km.

Initially, my top speed is 31kph then it got reduced to 26kph like after a month. Now it went down to 23-24 kph.

Does any one have the same issue or know any fixes?

Thanks in advance
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Old 01-11-2019, 07:55 AM   #2
SaroC
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I installed yesterday the extra battery on the ES2, and the behaviour at max speed is really strange.
Reaching 30 km/h it starts bouncing between 28 and 30 without having the possibility to set the cruise control.
Before installing the battery, the 25 km/h max speed was perfectly stable.
I will let you know if also the max speed will decrease in the next days
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Old 01-15-2019, 04:48 PM   #3
iMak
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Please keep this post alive as I am also waiting to fix the extra battery in a few days.
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Old 01-18-2019, 07:18 PM   #4
PhitauRED
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Default I have had similar experience

My es4 has similar mileage, and has just started the headlight issue as well as this top speed issue. However the top speed issue is intermittent and obviously I have accounted for any difference in wind or terrain and battery level. But most days I am at 31kmh, my worst top speed again flat terrain no wind full battery was 28kmh. I am 6 250lbs btw.
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Old 01-21-2019, 05:05 PM   #5
iMak
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I have installed the extra battery yesterday, I did a quick and short run at home in the corridor, I immediately noticed it got more torque. I took it out for a short 150 meter stunt, indeed it has more torque now and the speed reach to max 31kmh. I tried with the headlight on, no issues.

However, I still need to give it a better run to test it properly, it's currently continuously raining here though, will wait for a dry weather.
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