Power Assist / Empulse / Add-On Power-Assist Devices / Empulse M90

M90 Wheelchair Accessory

The Empulse M90 adds sleek, stylish power to your manual wheelchair without weighing you down.

Seamless power integration for your manual wheelchair and your life. The Empulse M90 provides power assist for your manual wheelchair with no bulk, wires, or extra components. Keep your preferred tires and handrims and drive your wheelchair with or without power through a simple, removable all-way toggle. By far the lightest wheel-drive power assist device in its class, the M90 adds sleek, stylish power to your lifestyle without weighing you down.

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Options and Prices

Mounting

Sleek, integrated design

Turn heads with the M90's sleek lines. The M90 has no extra components or wires hanging off your wheelchair. So mounting or dismounting the M90 is as easy as using a quick-release rear wheel. All of its components and its removable batteries are fully integrated into the hub without changing the width of your wheelchair.

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The lightest in its class... by far!

The M90 is the lightest wheel drive on the market, up to 40% lighter than similar products. The complete package (including wheels, batteries, and controller) weighs only 26 lbs! Each wheel weighs just 13 lbs., including batteries. And with its minimal weight centered on your wheels, it gives you better maneuverability and a better ride.

Dual Controller

Instantly switch drive modes

With the smart Dual Controller, you can switch effortlessly between all-way toggle and speed controller with handrim steering drive modes using the Mode/Profile button to match your energy, environment, and preferences - no change of hardware needed.

Controller features

Dual Controller

Instantly switch drive modes

With the smart Dual Controller, switch effortlessly between All-Way Toggle and Speed Controller with Handrims Steering drive modes using the Mode/Profile button to match your energy, environment, and preferences – no change of hardware needed.

	All-Way Toggle	Speed Controller with Handrim Steering
Start / Stop	Push all-way toggle forward to start. Let go of the all-way toggle to stop. Handrims don't affect speed.	Tap speed controller to start. Push speed controller down or use handrims to stop gradually.
Speed Control	Push all-way toggle forward/back to proportionally accelerate or slow down.	Tap speed controller to increase or decrease speed step by step, up to level 5 in both profiles.
Steering	Move all-way toggle in any direction to steer.	Steer manually using the handrims.
Cruise Control	Press down on all-way toggle at desired speed to activate. Steer with all-way toggle. Stop by moving all-way toggle or pressing down.	Tap speed controller to increase or decrease speed level. Steer manually with handrims. Stop by pressing speed controller down, tapping backwards until speed is level zero, or by grabbing and holding handrims.
Manual Assist	N/A	A gentle boost that engages after a stop, via handrims allowing repositioning.
Drive Profile	Select via App or Dual Controller (Indoor/Outdoor)	Select via App or Dual Controller (Indoor/Outdoor)
Drive Setting	Choose speed range (Base / Standard / Max) via App	Choose speed range (Base / Standard / Max) via App

Some features may work differently depending on whether All-Way Toggle or Speed Controller with Handrims Steering is selected. We recommend that riders take a moment to get familiar with how functions operate in their chosen drive mode for a smooth and confident ride.

M90 App

Drive anywhere, effortlessly. Quickly toggle between drive modes and drive profiles for smooth handling in any environment and find the right combination of power and efficiency.

Fine tune the ride. Choose Base, Standard, or Max drive settings to match your needs and surroundings.

Make the most of your M90 from day one. Use the M90 app during setup to optimize performance for you and your wheelchair. Choose a drive mode and drive profile to match your environment – indoors or outdoors – with presets for speed, torque, and slope. Stay in control with real-time battery status for both controller and wheels. Compatible with Android^™ and Apple^® iOS.

No compromises on your ride.

With the M90, you can use your preferred handrims and tires. They can be switched out, just like any other 24" wheel, keeping your traction, feel, and function the way you like it.

Safe, easy, and intelligent drive

The M90 is both safe and intelligent – expect nothing less of modern mobility tools. Because the weight and power of the M90 is centered on your wheels, driving is natural and intuitive. The M90 has built-in cruise control, automatic terrain adjustment, and intelligent hill control – all to keep you safe and on track.

Transport

Effortless travel anytime, anywhere

Designed to be easily transported. The M90 wheels offer a standard quick-release axle, weigh a mere 13 lbs. each, and fit nicely into the trunk of even small cars. Thanks to the flight-friendly battery*, the M90 is ideal for riders seeking a convenient solution for long- and short-distance travel.

* Individual airlines have differing requirements relative to transport of products with Li-Ion batteries. Prior to arranging any air travel with the M90, please confirm with your airline or carrier that they accept battery-powered vehicles. Please refer to the owner's manual for further details.

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Media

Specifications

Dimensions

Product Information

HCPCS Code:E0986

Performance/Weights

Max. Range:9.3 miles
Range is dependent on the ground surface, the weight of the rider, driving behavior, temperature, and terrain.

Max. Speed:3.7 MPH

Battery Size:4.0Ah Lithium-Ion

Wheel Options:24"

User Weight Capacity:265 lbs.

Product Weight:

Total device weight: 26 lbs.
Each wheel, with battery: 13 lbs.
Each wheel, without battery: 12 lbs.
Battery weight: 1.3 lbs. (4.0Ah, each)

As a part of our ongoing product improvement initiative, Sunrise Medical reserves the right to change specifications and design without notice. Further, not all features and options offered are compatible with all configurations of the wheelchair. Please consult the user instruction manual for more information.

Support

Documentation

Brochures

Empulse M90 Brochure

Order Forms

Empulse M90 Order Form (2025)

Other

Frequently Asked Questions

Which wheelchairs are compatible with the Empulse M90?

The Empulse M90 power assist device from Sunrise Medical is designed to fit most Sunrise Medical folding and rigid wheelchairs with ease. To ensure compatibility with your wheelchair:

Check the Compatibility Guide: Visit the Sunrise Medical website to access the comprehensive Compatibility Guide. This guide lists all wheelchair models for which a combination agreement exists.
Non-Sunrise Medical chair compatibility will be coming soon.

How do I switch between handrim steering and the all-way toggle?

Switching between handrim steering and all-way toggle modes on the Empulse M90 is easy with the Drive Mode button:

Switching Between Drive Modes: After turning on the Empulse M90 and connecting the controller to the wheels, press and hold the Drive Mode button. This will alternate between All-Way Toggle and Speed Controller/Handrim modes.
- All-Way Toggle: Indicated by a white Profile LED.
- Speed Controller/Handrim: Indicated by a blue Profile LED.
Switching Between Indoor and Outdoor Modes: Within your selected drive mode, tap the Drive Mode button to toggle between indoor and outdoor modes.
- Indoor Mode: Solid light on the Status LED.
- Outdoor Mode: Flashing light on the Status LED.

For more detailed instructions, refer to the Empulse M90 Owner's Manual or watch the Empulse M90 Controller instructional video available on the Empulse M90 webpage.

How is the Empulse M90 wheel add-on installed on a wheelchair?

Installing the Empulse M90 power assist device on a wheelchair is straightforward with the provided mounting hardware and instructions:

Specific mounting hardware: The Empulse M90 includes mounting hardware tailored to the wheelchair model you selected on the order form.
Bracket Installation: Follow the provided instructions to securely install the mounting brackets on your wheelchair.
Quick-Release System: Once the brackets are installed, the Empulse M90 wheels can be easily attached and detached using a standard wheelchair quick-release system.

For further details, refer to the Empulse M90 Owner's Manual and the mounting videos available for both folding and rigid chairs.

How can I tailor the Empulse M90 performance to my preferences?

The Empulse M90's drive performance can be tailored to suit individual rider preferences using the M90 Smartphone App, available for iOS and Android:

What Is the M90 App? The M90 App is a smartphone application available for download from the Apple App Store or Google Play Store.
Adjust Performance Levels: Adjust drive performance settings to match the rider's weight and preferred performance level:
- Base: Optimized for lighter performance needs.
- Standard: Balanced settings for everyday use.
- Max: Enhanced performance for greater power and speed.
Instructional Resources: For step-by-step guidance, watch the M90 App instructional video available on the Empulse M90 webpage.

Can I take the Empulse M90 on a plane?

Yes, the Empulse M90 power assist device can be taken on a plane, as its lithium-ion battery is approved by the International Air Transport Association (IATA) for air travel.

Battery Approval: The Empulse M90's battery is classified under UN3481, making it suitable for transport on aircraft.
Airline Requirements: Individual airlines have different policies regarding the transport of devices with lithium-ion batteries. Before traveling, confirm with your airline or carrier that they accept battery-powered devices classified as UN3481.

Refer to the Owner's Manual for comprehensive guidelines on air travel with the Empulse M90.

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