Empulse M90 Power Assist
Sleek, lightweight power-assist add-on that transforms your manual wheelchair with smart technology.
The Empulse M90 by Sunrise Medical is a sleek, lightweight power-assist add-on that seamlessly transforms your manual wheelchair into a power-assisted device—without bulky components, tangled wires, or complicated modifications. It preserves the wheelchair’s original configuration, allowing users to keep preferred tires and handrims while switching easily between manual and powered propulsion via a quick-release system. Weighing just 26 lbs in total (approximately 13 lbs per wheel, including the battery), the M90 is significantly lighter than similar devices, offering exceptional portability. It features smart driving modes with cruise control and hill support for a smoother ride.
Empulse M90 Wheel Add-on Features & Details
Seamless Power Integration
The M90 blends fashion and function with sleek lines and no visible wires or add-ons. Its fully integrated design keeps the wheelchair compact while improving balance and ride quality thanks to hub-centered weight. It includes a quick-release system for easy on/off transport, and even the removable batteries are discreetly housed for a cleaner look.

The Lightest in Its Class – by Far
Weighing just 27 lbs. (12.2 kg) for the complete set, the M90 is up to 40% lighter than similar products. Each wheel – including its battery – weighs just 12.9 lbs. (5.9 kg), making it exceptionally easy to handle and transport.

Ride YOUR Way
The M90 offers two drive modes: All-Way Toggle for power wheelchair-style control, and Speed Controller with Handrim Steering for a cruise control-like experience. The wireless Dual Controller allows you to switch easily between indoor and outdoor profiles. It can be mounted conveniently and detaches for transfers.
Safe, Easy & Intelligent Drive
With power and weight centralized on the wheels, the M90 delivers a natural, intuitive drive. Built-in cruise control and intelligent hill control help ensure a safe, smooth experience. Riders can switch from power assist to free-roll instantly for complete flexibility.
Removable, Travel-Friendly Batteries
The M90 features removable, off-chair rechargeable batteries that make travel simple. Add an extra set to extend your range. The lithium-ion batteries are also flight-friendly* for travel peace of mind.
* Airline requirements for Li-Ion batteries may vary. Please confirm with your airline or carrier before traveling.

M90 Power Assist Accessories & Configuration
Customize your M90 experience. Tire options include Pneumatic Schwalbe Marathon Plus or Primo Orion Poly. Handrim choices include Aluminum Black, Plastic Coated, Ellipse 3R, or Natural Fit. Optional accessories include spare flight-friendly batteries, docking chargers, wrist supports, thigh straps, and swing-away mounts for the controller.
Please refer to the Order Form or Compatibility Guide for specific configuration details.
Empulse M90 Downloads and Resources
Empulse M90 Wheel Add-on Videos
Empulse M90 Reviews
"All-in-all, the M90s look like an interesting addition to the quickly-expanding world of powered mobility accessories. At 26 lbs. total weight, they're the lightest and easiest to transport way yet to add power wheels to your manual wheelchair." - Seth
Empulse M90 Power Assist by Sunrise Medical Buyer’s Guide
The Empulse M90 Power Assist by Sunrise Medical is an innovative propulsion system designed to convert a standard manual wheelchair into a high-performance motorized mobility device. Engineered to offer seamless power integration, this system allows riders to navigate challenging outdoor environments, steep inclines, and long distances with significantly reduced upper-body strain. By combining advanced motorized hubs with a wire-free design, it preserves the standard footprint and agility of a manual chair while expanding independence.
Empulse Fully Integrated Hub Architecture
The defining trait of the Empulse system is its clean, self-contained hub configuration. Unlike older propulsion technologies that rely on external battery packs and messy cables running along the frame, this device houses all necessary motors and electronic components directly inside the rear wheel hubs. This wireless design ensures that the physical width of the chair remains unchanged, making it easier to navigate through narrow doorways and tight interior hallways without risking scrapes or snags.
Versatile Power-Assist Control Capabilities
This system delivers adaptive propulsion through flexible operational modes that can be tailored to individual preferences and changing environments. Users can choose to drive using a compact, wireless joystick for effortless power-chair-style navigation, or switch to a push-button speed controller paired with manual handrim steering. This dual-controller functionality ensures that riders can actively push when they want the exercise, but immediately rely on robust motorized assistance when facing energy limitations or uneven terrain.
Universal Manual Wheelchair Compatibility
Designed with adaptability in mind, the system serves as a highly versatile add-on that can be retrofitted onto a wide array of rigid and folding manual frames. Because it mounts directly via standard quick-release axles, users do not need to make permanent structural modifications to their existing equipment. Furthermore, the hardware allows individuals to retain their preferred tires and handrims, guaranteeing that the personalized ergonomics, traction, and overall feel of their primary chair are fully preserved.
Lightweight Construction for Effortless Transport
Portability is a central focus of this design, making it an ideal option for active individuals who travel frequently. The complete wheel package ranks among the lightest in its category, reducing the overall lifting burden for users and caregivers alike. Because each component is streamlined and independent, the wheels can be popped off in seconds using quick-release pins and stowed neatly inside a standard car trunk or back seat. This minimal weight penalty ensures the chair remains easy to handle even when power is turned off.
Intelligent Safety and Flight-Friendly Batteries
Equipped with smart terrain sensors, the drive system automatically adjusts to varying surfaces, offering built-in cruise control and automatic braking assistance on downhill slopes to prevent runaway acceleration. Power is supplied by compact, removable lithium-ion batteries that slide directly out of the wheels for off-chair charging. These batteries are designed to meet international airline travel regulations, allowing riders to navigate airports and catch flights with peace of mind regarding their mobility equipment.
Empulse M90 Power Assist by Sunrise Medical Review
The Empulse M90 Power Assist by Sunrise Medical offers an exceptional balance of style, power, and everyday practicality for manual wheelchair users. As a wireless add-on, it successfully bridges the gap between manual agility and motorized endurance without cluttering the frame with bulky components. Its exceptionally lightweight build, intuitive dual-drive controls, and intelligent hill safety features make it a premier choice for individuals looking to protect their shoulders and expand their personal freedom.
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Warranty Information
SUNRISE GUARANTEE/WARRANTY
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Sunrise Medical guarantees the device against defects in material and workmanship for 24 months after delivery to the customer, then the affected part or parts will be repaired or replaced free of charge. The warranty will only cover manufacturing defects and does not apply if:
- The device is subject to abuse.
- The device is not maintained as recommended in the owner’s manual.
- The device is transferred to a different person from the original owner.
- FOR ONE (1) YEAR - We warrant all Sunrise-made parts and components of this device, including: motor and electronic components, against defects in materials and workmanship for one year from the date of first consumer purchase.
- FOR SIX (6) MONTHS - We warrant batteries and chargers for six months from the date of first consumer purchase. Battery warranties are subject to periods set by the manufacturers. However, most of these warranties are subject to a wear and tear clause, and if you genuinely wear out your batteries in 6 months, it will not be possible to obtain a replacement under warranty.
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LIMITATIONS
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Claims from this warranty shall not arise, if a repair or replacement of a device or a part is required for the following reasons:
- Normal wear and tear on items such as batteries, tires, brake shoes.
- Damage from neglect, accident, misuse, or from improper installation or repair.
- Changes or modifications made without Sunrise Medical’s express written consent.
- Damage from exceeding the weight limit.
- This warranty is VOID if the original serial number tag is removed or altered.
- This warranty is non transferrable and only applies to the first consumer purchase of this device through a Sunrise Medical authorized dealer.
- This warranty applies in the USA and Canada only. Check with your Sunrise Medical authorized dealer to find out if international warranties apply
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Claims from this warranty shall not arise, if a repair or replacement of a device or a part is required for the following reasons:
