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UNAwheel Maxi Online User Manual
Before using the power add-on please read this user manual thoroughly.
Installation guide
The following videos will help you to install the unit for the first time and choose the best attach / detach option of UNAwheel Maxi.
If you have any questions or doubts, please check the manual, send us a message or contact your nearest dealer.
Adapter Installation
Adapter fits folding or rigid wheelchairs.
Attach the clamps
  • Pick rubber spacers and place them on the front tubes of your wheelchair. Installation kit contains spacers for round tubes (tubes’ diameters: 19-20mm, 22 mm, 25 mm, 30 mm, 32 mm and 35 mm), oval tubes (Helium, Progeo) or square tubes (Kuschall 2.0);
  • Lightly tighten the clamps by screwing on its bolts. Clamps should not fall but you should still be able to slide them up and down the tube;
  • Rotate the part of the clamp with the handle until the clamp stays vertical. To rotate the handle effortlessly, loosen the screw that holds both parts of the clamp.
Assemble the adapter
  • Loosen the adapter’s screws so that you could slide and rotate the tubes of the adapter;
  • Insert the ends of the central adapter’s tubes into the wide open clamps’ brackets. Make sure brackets face strongly to the front;
  • Lock up the clamps to secure the adapter’s tubes. Rotate clamps’ handles to secure tubes tightly;
  • Lightly tighten the screws of the central adapter. It should not fall but you should still be able to rotate it.
Tightening the screws & the final touches
  • Position the central adapter so that the upper axle is placed right in front of the upper hook;
  • By adjusting the incline of the central adapter you can adjust the incline of the power assist and how far from the ground the front wheels are raised;
  • Make sure that both clamps are placed identically (same height from the ground and incline);
  • Tighten the screws of the central adapter and the clamps;
  • By sliding the stop rings you can adjust the position of the handlebar. The deeper you insert the adapter’s tubes into clamps’ brackets the closer to you the power assist gets. Make sure that both stop rings are placed identically (at the same distance from the ends of the adapter’s tubes).
How to attach the UNAwheel Maxi
Attaching and detaching should be hassle-free. If attaching or detaching requires an extra effort then most likely the installation is made incorrectly or something got broken. Please check the manual, send us a message or contact your nearest dealer.
One step option
Attach and detach the unit with the adapter.
Attaching UNAwheel Maxi with the adapter
Detaching UNAwheel Maxi with the adapter
Two step option
Attach and detach separately the unit and the adapter.
Attach adapter first and after it the unit
Detach the unit first and after it the adapter
Snap & GO option
When you stay in the wheelchair, there is no need to detach the adapter, it may stay connected. I.e. when you’re in a cafe or office, etc.
You will need just 3 second to be on the road again!
Attaching and detaching processes from different view points
We understand that it may be difficult to see all the details, so we made some more videos from different perspective.
Turning on and switching the speed modes
Long press the On/Off orange button to turn on the UNAwheel Maxi. The display shows the battery level, current speed, current speed mode, current power used to drive:

OFF - throttle is turned off
MAX 6 - maximum speed is 6 km/h *
MAX 12 - maximum speed is 12 km/h *
MAX 18 - maximum speed is 18 km/h *
MAX - maximum speed is 20 km/h *

* If the UNAwheel Maxi’s maximum speed programmed is less than this number the power add-on won’t speed up faster than this on a flat surface
Check the battery level!

Please check the battery charge level before use (charge level is displayed at the bottom of the display).

  • 10 bars - the battery is fully charged;
  • 4 bars - depending on the terrain and battery type, you have around 10% of charge left. Reduce the speed and look for a place to charge or swap the battery;
  • 1 blinking bar - the battery is fully discharged and will switch off soon.
The reverse mode
To switch to reverse mode, stop and press the red button. Press the gas knob to start moving backwards. The reverse maximum speed is 6 km/h.

Even though the speed is low please drive carefully. When driving backwards you can accidentally turn the handlebar too sharply and roll over.

To switch the speed mode back to forward, stop and press the reverse button. Press the gas knob to start moving forward.

The motor power is greatly reduced when driving backwards therefore do not drive in a reverse mode on hills.
Driving the UNAwheel Maxi by wheelchair users under the age of 18 is only allowed under parental supervision
1. Protective gear
To prevent injuries caused by falling wear protective gear, such as helmets, protective pads, and other gear.

2. Maximum load
The Maxi’s maximum load is 120 kg. Exceeding the maximum load may cause injury and the product damage. Driving the UNAwheel when there is more than one person in the wheelchair is prohibited.

3. Water
The UNAwheel Maxi is equipped with water (IP54) and dust protection. Even though you can drive Maxi in wet weather conditions please avoid deep puddles and never use the power add-on during the heavy rain. Never immerse the UNAwheel in water or other liquids.

4. Malfunctions
In case you encounter a malfunction immediately contact the Distributor or a Reseller in your country - depending on where you purchased the device. Do not repair the UNAwheel yourself and do not use the third-party repair services. Service support is only provided by the authorized Distributor/Reseller. Do not use the power assist until it is fully repaired.
5. Disassembly
Do not disassemble the UNAwheel Maxi or make any modifications to the power assist or any of its parts. It can void the warranty, cause the product damage or malfunctions.

6. Protect the device from impact damage.

7. Use the power assist correctly
Use the UNAwheel Maxi only for its intended purpose. The UNAwheel Maxi should be used according to the instructions in the User Manual.

8. Before use
The UNAwheel Maxi must be inspected before every use. Make sure that there is no damage and all the parts are secured tightly. In case you discover a malfunction of the main unit, the charger or the cable, do not plug the charger into the outlet.

9. Charging
Charge the UNAwheel Maxi using only the charger provided.
Never disassemble the charger.
Do not use non-standard power supplies to charge the power assist.
Do not carry the charger holding it by the cable.
Hold the charger by the plug when disconnecting.
Switch off
Switch off the UNAwheel Maxi by pressing the orange button for a few seconds. The orange button is placed on the top of the display.
Remove the protective cap and connect the charger to the plug in the back of the power add-on on the left side of the swivel mechanism.
Plug in
Plug the charger into an electrical outlet. Make sure that your power supply is fully rated to deliver the amps and watts the UNAwheel Maxi needs. Check the charger for more information.
Do not leave the power assist unattended. Charging takes up to 5 hours depending on the discharge level.
Plan your charging - keep in mind that charging takes 5 - 8 hours depending on the installed battery capacity.

  • The indicator remains red while charging.
  • The indicator turns green when the battery is fully charged.
  • While going uphill or speeding up rapidly the power assist is experiencing a significant load. Please note that in this case the battery charge level indicator may display less bars remaining than when the power assist is parked or if you drive on the flat surface without speeding up.
  • The power assist may get switched off due to battery or motor overheating. To prevent overheating, avoid overloads.
  • The UNAwheel Maxi must not be used as a vehicle on public roads.
Maintenance & Service support
If the UNAwheel Maxi is broken down or malfunctioning contact the Distributor/Reseller and do not use the power assist until it is repaired.
Cleaning & Storage
  1. Before cleaning, make sure that the power add-on is switched off and the charging plug is closed. Do not clean the UNAwheel Maxi while charging.
  2. Do not clean the power assist with ethanol, gasoline, kerosene or any other volatile corrosive solvents.
  3. Do not clean the device under the water jet or using a water hose or any high-pressure cleaning machine. Use a damp piece of cloth.
  4. Store the power assist and the charger in a dry place at 5-25 °С, keep it out of reach of children.
  5. Check the battery charge level every 3 months. If it’s less than 50% please charge the device.
  6. Avoid heat, direct sunlight and moisture
How to transport the UNAwheel Maxi by car or train
Make sure that the power assist is securely packed and protected from vibration, impact damage, water and other liquids and chemically aggressive environments.
How to travel with the UNAwheel Maxi by plane
Two Li-ion batteries with max. 160 Wh capacity (each) or one Li-ion battery with max. 300 Wh capacity are allowed in the baggage according to IATA (DGR Chapter
Maxi's battery capacity is 288Wh.
To travel hassle-free:
  1. Notify the airline company at least 72 hours before the flight.
  2. Provide the necessary information about the device - the UNAwheel Maxi is an assistive wheelchair device with a removable Li-ion battery.
  3. Print the UNAwheel Maxi Air Transportation Certificate for passengers and take it to the airport.
  4. Remove the battery and pack it.
  5. Drop off the power assist at the oversized baggage area.
  6. Bring the battery into the cabin.
Taking the battery in and out for air transportation
According to IATA rules, you have to take the battery in a case with you inside to cabin.
Taking the battery out before air transportation
Installing the battery back after air transportation
UNAwheel Maxi characteristics:
  • Weight of the unit: 11.3 kg
  • Climbing capability: max. grade of 14%*
    (*With a fully-charged battery and a 60 kg user weight)
  • Weight of the battery: 2 kg
  • Handlebar: 480 mm, adjustable tilt
  • Weight of the adapter: 1.7 kg
  • Controller: Built-in, 20A
  • Battery: Li-ion, 8Ah, 288Wh, 36V
  • Range: up to 25 km*
    *Depending on the type of terrain, road surface, the weight of the user and temperature
  • Wheel diameter: 14", pneumatic.
  • Central Positioning Mechanism
  • Motor (brushless, direct): 450W
  • Max. speed: 20 km/h (the device can be speed-limited to comply with local regulations)
  • Maximum load: 120 kg
  • LCD display, diode lantern, signal
  • The UNAwheel Maxi is compatible with Active and Basic wheelchairs.
  • Mechanical brake + parking brake
Feel free to reach out if you have any questions -
We wish you a safe and spectacular driving experience.

UNAwheel Team