NIU FQiX 300 / 150 70+KMH Bluetooth Controller (Bluetooth Programmability & Speed Unlock)

NIU FQiX 300 / 150 70+KMH Bluetooth Controller (Bluetooth Programmability & Speed Unlock) - Image 2

Rated 4.33 out of 5 based on 3 customer ratings

€349.95 €699.95Price range: €349.95 through €699.95

Looking for a NIU FQiX 150 speed-up controller? This Bluetooth-programmable controller can unlock a maximum speed of 70+ km/h on a compatible FQiX 150, while letting you adjust riding modes, speed and acceleration.

Compatibility: NIU FQiX 150 with the original connectors and wiring harness, including original 25 km/h and 45 km/h versions.

Recommended option: 190A Line / 450A Phase for the original motor and battery. Select 400A or 600A only for a complete high-power motor build.

Package contents: Selected Bluetooth controller, NIU FQiX adapter, installation instructions, Bluetooth app registration and programming guide.

Delivery estimate: Free shipping: 3–4 weeks. Express shipping (+€20): 1–2 weeks.

Controller Model

Scooter Model

Clear

SKU: N/A Categories: Featured Products, Motherboards, NIU Accessories, NIU Controllers, NIU FQIX Brand: NIU

Description

NIU FQiX 150 Bluetooth controller upgrade

Looking for a NIU FQiX Bluetooth controller for a compatible FQiX 150? This Bluetooth-programmable controller can unlock a maximum speed of 70+ km/h on a compatible FQiX 150, while letting you adjust riding modes, speed and acceleration. Select the recommended 190A / 450A controller for the original motor and battery, purchase it, and follow the supplied setup instructions. Larger controllers are intended for complete performance builds.

This controller is designed to optimize speed and power delivery on the NIU FQIX 150.

Which controller should I choose?

Standard and recommended

190A Line / 450A Phase

This controller is fully sufficient for the original NIU motor and battery setup. It also remains sufficient when upgrading to a larger 72V battery. A larger controller provides no useful advantage with the original motor because the 190A / 450A controller will not need to be used at its maximum settings.

Heavy performance

400A or 600A Line

The 400A or 600A Line controller is not necessary when using the original battery or the original motor. Choose one of these heavy-performance versions only for a complete high-power build with a larger performance motor, compatible high-output battery and BMS, upgraded wiring, and matched programming.

Compatibility

NIU FQIX 150
Compatible with the original connectors and wiring harness
Designed to retain the dashboard, lighting, throttle, TCS, reverse, NIU app and GPS functions on the matching model when configured correctly
Suitable for both original 25 km/h and 45 km/h versions

Bluetooth programming

The built-in Bluetooth connection allows you to adjust:

Speed for ECO, DYNAMIC and SPORT modes
Acceleration strength
Regenerative braking
Battery and motor parameters

A Bluetooth registration and programming guide is supplied after purchase.

What is included

Selected Bluetooth controller
NIU FQIX adapter
Installation instructions
Bluetooth app registration and programming guide

Installation

Turn off the scooter.
Open the trunk and remove the securing screws.
Disconnect the controller cables and power plugs.
Replace the original controller with the upgrade controller.
Run auto-learn through the Bluetooth app using the supplied guide.

Programmable parameters

These settings indicate what may be programmable. Parameter availability and adjustment ranges vary by scooter model, controller version, firmware and configuration; not every setting is available for every bike.

Battery current limit
Phase current limit
Field weakening current
Constant power mode
TCS / Traction control
HHC Hill hold control
Drive mode
Torque gain
Pole pairs
Hall sensor angle
Hall phase sequence
Motor rotation direction
Phase shift angle
Sensorless start mode
Auto learn motor
Throttle dead zone
Throttle curve
Soft start time
Cruise control enable
Cruise trigger condition
Reverse enable
Walk assist
Brake cut-off enable
EBS regen strength
Regen max RPM
Regen battery current limit
Brake signal type
Rated battery voltage
Low voltage cut-off
Over voltage protection
Controller over temp limit
Fan start temperature
Overcurrent protection delay
Stall protection
Motor lock enable
3-speed limit
Max speed limit
Wheel diameter
Gear ratio
Pulse factor
Parameter memory after power off
Protocol select
485 baud rate
Dashboard type
485 enable
Vehicle preset

Videos

See the FQiX 150 controller and speed-up guide.

Frequently asked questions

What installation and programming are required?
The controller connects using the model-specific adapter and original wiring harness. After installation, auto-learn and the required model-specific settings must be completed in the Bluetooth app.

Can I reinstall the original controller?
Yes. The stock controller can be reinstalled at any time.

Can higher performance reduce range?
Yes. Using the additional performance can reduce riding range by approximately 20%.

Before ordering and getting started

How will I receive the programming instructions?
The programming instructions and access details are included in your order confirmation email. Use the instructions for the controller you ordered.

Will this also fix a fault on my scooter?
A speed upgrade is not a diagnosis of an existing fault. If the scooter already cuts out, has an error code or does not run, send us the fault details before choosing a replacement controller.

What should I do if I have trouble programming the controller?
Check the supplied model-specific setup guide and repeat the self-learning and Bluetooth pairing steps. If you still need help, contact support with your order number, exact scooter model, the step where setup stops, and a photo or screenshot of any error message.

Additional information

Controller Model	190 LINE / 450 PHASE (FQIX 150 RECOMMENDED) — RECOMMENDED FOR ORIGINAL MOTOR AND BATTERY, 400A LINE / 850 PHASE (HEAVY PERFORMANCE UPGRADE) — RECOMMENDED WHEN UPGRADING MOTOR AND BATTERY, 600A PHASE / 1200A PHASE (HEAVY PERFORMANCE UPGRADE) — RECOMMENDED WHEN UPGRADING MOTOR AND BATTERY
Scooter Model	FQiX 150, FQiX 300

3 reviews for NIU FQiX 300 / 150 70+KMH Bluetooth Controller (Bluetooth Programmability & Speed Unlock)

Rated 3 out of 5
Anonymous – October 21, 2026
What app is required to control the bluetooth controller?
Rated 5 out of 5
Anonymous – October 20, 2026
I’m extremely satisfied with this product! It works exactly as described and meets all my expectations. The shipping was fast, and the technical support has been excellent — very helpful, professional, and responsive. The seller provided great assistance throughout the setup process. I highly recommend both the product and the seller. I would definitely buy from them again!
Rated 5 out of 5
Paul Knittel – October 17, 2026
The product is as described and everything works perfectly. Delivery was quicker than expected. Very prompt and expert advice and assistance whenever any problems arose. Highly recommended!