The battery represents roughly half of the price you paid for your NIU. So it should be maintenanced at least as well as the scooter itself.
[UPDATE: In 2018 NIU themselves published this page pretty much covering this FAQ entries content.]
- Optimal charging temperature: 10 to 35°C
- Using-temperature should not exceed -10 to 45°C
- Do not unnecessarily keep on charging the battery when it is fully charged (Green LED lit on charger)
- Do not completely drain the battery – try to charge at 10% at the very least.
(long term) Storing
- Optimal storage temperature: 0 to 20°C
- Recommended charge of 40-75%
- Check charge-level every 2 months (e.g. put it into your NIU to get a proper readout)
- Charge it to 100% when planning to use it again
To make sure you’re not “overloading” your battery you could use this engery-saving mains socket from Ansman (or something similar):
This automatically cuts of power when it falls below a certain (programmable) threshold, e.g. below 50 watts.
Control Modules (3)
Q: Are there different versions of ‘firmwares’ available for my NIU and what are the differences/advantages/disadvantages?
A: Yes, definitely, there are several known software revisions around – all undocumented.
Here’s what we know so far (gathered by users all over the world), columns filled with data where available…
- You’ll get the software revision from the App, it seems it always claims to be “latest version”
- The “ECUKRS” version name hints towards the official Austrian importer KSR, maybe tweaked by them
- Official dealers have a tool to update your firmware. If you have severe issues, it’s worth a try. That said, you might loose other nice features as it seems the newer releases are ‘tamed’ a bit.
|Model||Updated through||Version||V-Max||emergency operation at||comments|
|N1s 2017||controller update & OTA||ECUKSR1.3 (Nov 17)||47km/h||15%||+ smoother starting
– less lively
|N1s 2017||TRA01V06||~53km/h||20%||– sporadic amperage display failure|
If you have a revision to be added, come and join the forum – there’s a special thread for this 😉
The NIU N1s’ main controller normally called ECU (hidden inside/behind the front panel) has an LED, and if it blinks, that’s a message 😉
Here are the blink codes:
- 1 Over-Voltage warning
Battery voltage is higher than default value
- 2 Under-Voltage warning
Battery voltage is lower than default value
- 3 Over-Current warning
Instant current is higher than default value or Phase line short circuit
- 4 Locked-rotor warning
Duration of Motor in locked-rotor status longer than default value
Replace FOC controller
- 5 HALL failure
Incorrect HALL input(Voltage) detected
- 6 MOSFET failure
MOSFET power self-check failed
Replace FOC controller
- 7 Phase default warning
one or more of motor phase lines missing
- 9 Brake applied
Controller in the braking status
- 10 Self-test failure
System on the internal electrical self-checking found abnormal
- 11 Controller over-heat warning
Temperature is higher than default value
Stop riding until FOC controller cool down
- 14 Cable Hall Sensor Failure
Twist grip/Cable Hall Sensor Malfunction
- 15 Alarm in active state
- 17 Communication failure
Communication between ECU and FOC controller failed
Replace FOC controller
For the European market NIU chose the well-known Swiss manufacturer of ready-to-use GPS modules: u-blox.
A press release of u-blox reveals that they use the standalone GNSS‑Modul MAX‑7Q, which is using a Multi‑GNSS technology (GPS, GLONASS, QZSS und SBAS), making sure that tracking will work in any part of the world, at any time, independent from a single satellite system.
Q: There’s an Error 30 displayed in my NIUs dashboard
A: Generally, this is a Battery failure code.
The official manual provides these reasons and how to fix them:
|Battery over-charging||Stop charging. Start discharging if
it is normal.
|Low-temperature battery protection (-20
|Restore the temperature|
|The BMS temperature detection circuit is
|Replace the battery|
N1s owners reported several occasions when this happens:
- Charging the battery externally(!) it only reaches a 90% charge. Putting it back into the NIU triggers Error 30.
- Unplugging the charger right after the LED changed to green.
- After driving downhill, especially when the charge is around 90%
To conclude all these reports, the main reason for Error 30 seems to be the BMS which is built into the battery.
One owner contacted the German/Austrian importer who responded like this:
This error report can easily be deleted by simply starting your scooter by the start-button.
Please mind: If Error 30 occurs, the “P” symbol will not be displayed in the dashboard.
After driving for about 2 meters the BMS will recognize power consumption from the battery and you can use your scooter as normal.
When starting your scooter make sure that the side stand is not swung out!
This procedure did delete the Error 30 in 100% of all cases – maybe an update of the BMS (using the diagnose device) will permanently correct this issue.
We’re currently working on new BMS boards which also might be good for retrofitting.
Generally, Error 30 will be triggered if you drive your NIU downhill for a longer distance and recuperation is ‘overloading’ the battery. One hint in the forums was to use the brakes every now and then and there will be no error displayed.
Q: Can I import/bring my NIU from China into Europe?
A: It shows that there are quite some NIU owners, who like to bring their beloved scooter with them to Europe (or even the US).
There are two obstacles (besides shipping):
- Get it registered (You’ll need an CoC)
- Use the software (i.e. App)
The CoC is provided by the official importer of your country. You might either ask them, or you’re lucky to find somebody at the NIU mothership who’s willing to help you. Without a CoC, riding your NIU in Europe is illegal.
Concerning the software MyNIU.org reader Agus shared this valuable info on this (thanks, man!):
I have an updated info -anyway- for every body here (I have just received this info from NIU; therefore this is official):
The app for NIU scooters that have been bought in China and then shipped to Europe (privately) by their owners will not work (this does not apply to the ones that have been directly bought in Europe from official importers).
I mean: for instance, if you are in China and are using a NIU scooter there, DON’T TAKE IT TO EUROPE; SELL YOUR SCOOTER BEFORE LEAVING CHINA; in Europe the app will not work.
It would be the same, if someone in Europe, wants to sell any scooter to you that was previously bought in China, not in Europe.
In other words: if the scooter was bought in China, and then shipped to Europe, you will be able to use the scooter for going anywhere (no problem for that), but the scooter’s electronic components (which are made only for China) will not allow you to use the app (you will have to forget -for instance- about the GPS function). The app will not be able to get connected with the scooter.
(THIS IS OFFICIAL INFO -I REPEAT- FROM NIU).
The problem is… that the price of NIU Scooter’s in Europe is approximately 3 times more expensive than the original price of these Scooters in China…
Yes, technically there is a way… given it is street-legal in your country to have a child riding along with you.
There’s a special child-seat for motor/electric scooters available: The Stamatakis Maxi seat is especially made for scooters and motorcycles and perfectly fits the N1s saddle.
4 loops are used to fixate the seat to the saddle: One below the saddle itself, one around the front of the seat-compartment and two can be looped through the handlebars in the back.
My daughter (aged 6) is just able to reach the foot-rests. Smaller children can use the supplied foot-slings which come with the Stamatakis.
A: Straight away: The App offered for all non-Chinese owners is a piece of crap – and ages old.
For a start, the Chinese Version is 3.0… you probably got 1.2.xxx – read all about it in this post.
For those adventurous enough, there’s a way to actually use the Chinese App provided by fellow MyNIU.org reader Thomas:
“Just make an account on the European app and then install the Chinese version, preferably on another device. Your password doesn’t seem to work but just reset it.
You will receive a text message with a six digit code. Enter it, reset password and enjoy the app!”
First of all: Since the launch of their different models (~2016), NIU tend to rename their (sub)models every now and then. So depending on the year of delivery the same model might have a slightly different name which can get pretty confusing. Let’s take the model N as an example:
Starting in China as “N1 civic” it became the “N1” after Honda claimed civic as their brand, which is the same as the “N1s” in Europe (+extra specs for ‘oversea’, ~2017). Then in 2018 it became the “N1 sport” and after the latest renaming in 2019 all models lost its “1” and got a “Qi” so its now called the “NQi Sport”- Phew.
Because all this seems to be an ever-moving target, I moved this FAQ entry into a fullblown post over here.
That’s probably the #1 question people ask. Officially, no, there’s no way to make your NIU running faster – the EU model is limited to 45km/h (or even 25km/h) which is the EU law for this kind of vehicles.
That said, the motor and battery are definitely capable of delivering higher speeds. Some videos from China prove, that this is possible. Have a look at those videos here or here. Obviously driving faster will drain the battery faster, too.
What they do is using a 2nd, aftermarket motor-controller in parallel to the original one. Here’s the post about this tuning.
Depending on your NIU model, you might give these eastereggs/hacks a try… more recent 2017 N1s models won’t change their limit with these.
I think you can imagine yourself that you would void your warranty as well as risking to get into serious trouble with your local police/insurance in case of an accident.
Q: What brands of tires had successfully mounted onto a N1s?
A: Owners reported these tires to be “compatible”, i.e. tested on their NIU:
For the record, these are the required sizes
Front: 90/90-12 Rim: 2.15×12
Back: 120/70-12 Rim: 3.50×12
- Recommended for bad weather: Heidenau K58 mod. Snowtex
- [have your tire listed here]
If you’ve mounted any other brand, feel free to share your experience in the comments (which then will be added to this FAQ). Thanks!