HELIX Mobile Stairlift Battery Powered Stair Climbing Chair for Curved, Round or Straight Stairs

$3,999.99

Portable stairlift, for curved, rounded, and straight stairs, 400 lb capacity, up to 120 flights

The Helix is the only portable stairlift in the lineup built for curved, rounded, spiral, and straight staircases, with independant drive tracks that stay stable around turns. It carries users up to 400 lbs with up to 120 flights per charge, folds for travel, and comes with real U.S. support and a 7-day money-back guarantee.

400 lb Capacity
120 Flight Range
Curved & Straight Stairs
Auto-Braking Tracks
Removable Battery
Push Button Controls

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HELIX Mobile Stairlift Battery Powered Stair Climbing Chair for Curved, Round or Straight Stairs

HELIX Mobile Stairlift Battery Powered Stair Climbing Chair for Curved, Round or Straight Stairs

$3,999.99

✓ Free Shipping ✓ No Sales Tax
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The Helix Mobile Stairlift is the only battery-powered portable stairlift in the Mobile Stairlift lineup designed to safely operate on curved, rounded, spiral, and straight staircases. For homes with winding steps, quarter-turn landings, pie-shaped stairs, or irregular staircase layouts where most mobile stairlifts cannot operate, the Helix delivers a powerful, portable solution without permanent installation.

Unlike rail-mounted stairlifts that require custom fabrication, home modification, and long installation timelines, the Helix operates as a fully portable, seated stairlift that climbs stairs using motorized crawler tracks. The user remains securely seated in an upright position while the operator controls smooth, powered movement up or down the staircase. This eliminates dangerous manual lifting and significantly reduces physical strain on caregivers.

With a 400 lb weight capacity and an industry-leading up to 120 flights of stair travel per charge, the Helix is engineered for higher weight support, frequent daily use, and long-term reliability across complex stair environments. Whether used for daily home access, post-surgical recovery, travel between locations, or rental programs, the Helix provides dependable stair access wherever curved or straight stairs exist.

The Helix is designed to operate on wood, carpet, tile, concrete, and most common stair surfaces. Its flexible crawler track system maintains stable contact while navigating rounded edges and turning step geometries that standard straight-only mobile stairlifts cannot handle. When not in use, the unit folds compactly and fits into the trunk of most vehicles, making it ideal for families who travel, snowbirds, multi-location caregivers, and backup emergency stair access.

Unlike many low-cost stair climbers sold online, the Helix is backed by a real American company with U.S.-based phone support, replacement parts, warranty coverage, and long-term service infrastructure. It also qualifies for Mobile Stairlift’s 7-Day Money Back Guarantee, allowing families to test the unit inside their own home with confidence. With Free Shipping and No Sales Tax, buyers receive predictable, all-in pricing with no checkout surprises.

For homes with curved staircases where traditional options are limited or extremely expensive, the Helix delivers a powerful, portable, and budget-conscious alternative that restores safe stair access without permanent installation.

  • Curved, Rounded & Straight Staircase Compatibility: Engineered to operate on curved, spiral, rounded, and straight staircases, making the Helix the most versatile and adaptable mobile stairlift in the lineup.
  • 400 lb Weight Capacity: Heavy-duty construction safely supports users up to 400 pounds for residential use, recovery needs, and professional caregiving applications.
  • Powered Up & Down Stair Transport: Motorized crawler tracks safely transport users up and down staircases in a secure seated position while eliminating the strain and risk of manual lifting.
  • Up to 120 Flights Per Charge: A high-efficiency rechargeable battery delivers enough power for extended daily stair use on a single charge, making it ideal for multi-level homes and facilities.
  • Folds for Storage & Vehicle Transport: The Helix folds compactly and fits into most vehicle trunks for convenient travel, rental programs, visiting family, and multi-location caregiving.
  • Operates on Multiple Stair Surfaces: Designed for safe operation on wood, carpet, tile, concrete, and most standard indoor and outdoor stair materials when properly secured.
  • Dual Operator Handle System: An upper control handle and lower side assist handles support both one-person and two-person operation for improved control, comfort, and safety.
  • Front & Rear Wheel Mobility on Flat Surfaces: A four-wheel transport system allows the Helix to move easily across flat floors and between staircases without additional equipment.
  • Removable Rechargeable Battery with Display: The battery features a real-time charge level display on the control panel and can be quickly removed for convenient off-unit charging.
  • Real U.S. Support with 7-Day Money Back Guarantee: Backed by American-based support, replacement parts availability, warranty coverage, Free Shipping, No Sales Tax, and a 7-day in-home trial.

Weight Capacity400 lbs
Unit Weight65 lbs
Seat Height20"
Front Wheel Height3"
Rear Wheel Height5"
Armrest Handle Length11"
Telescopic Handle Length (Retracted)23"
Telescopic Handle Length (Extended)31"
Footrest Width11"
Footrest Depth4"
Track Length31"
Overall Height63"
Upper Handle Extension27"
Rear Handle Length10"
Telescopic Handle Positions Retracted: 23"
1st Position: 27"
2nd Position: 31"
Climbing DistanceUp to 120 flights per charge
Minimum Landing Area38" × 38"
Turning Radius (Track Open)44" × 44"
Turning Radius (Track Closed)35" × 35"
Frame MaterialHigh-Grade Aluminum
Climbing Speed0.4 meters per second
Battery TypeLithium Ion

Great For

  • Curved or Rounded Stairs
  • Travel and Trips Away From Home
  • Stairs Where a Ramp Will Not Fit
  • Homes That Cannot Be Modified
  • Saving vs an Installed Stairlift

Common Questions

What are the physical requirements for operating the Helix Mobile Stairlift? +

To operate this Helix safely, the operator should be in good physical health and capable of handling the stairlift’s controls. We recommend that the operator be comfortable hauling the 65-pound stairlift when storing and deploying it and be able to operate it with a patient’s weight.

To test these physical requirements, the operator should comfortably support the rider’s weight while the chair is tilted back.

What floor types does the Helix Stairlift work on? +

This stairlift works on a variety of floor types, including cement, wood, and iron stairs. It’s suitable for both indoor and outdoor use. It can also be used on carpeted stairs, but only if the carpet is fully attached to the stairs. It might slip under the tracks if it's a throw or a runner.

Does the Helix come fully assembled? +

Yes! All of our products, including this chair, come fully assembled and ready to use right out of the box.

Mobile Stairlift vs Traditional Built-In Stairlifts

See how the Mobile Stairlift compares to traditional built-in stairlifts.

Feature Mobile Stairlift Traditional Built-In Stairlifts
No Installation or Construction ×
Portable, Folds for Travel ×
Moves Between Multiple Homes ×
Doubles as Emergency Backup Access ×
Lower Upfront Cost ×
Keeps Working During a Power Outage Limited
7-Day Money Back Guarantee ×

Why Choose the Helix Mobile Stairlift?

Designed as a portable stairlift alternative, not a permanent rail bolted to your stairs.

No Installation Needed

No Installation Needed

Climbs staircases on motorized traction tracks with no rails, construction, or home modification.

Powerful and Portable

Powerful and Portable

Carries users up to 400 lbs and up to 120 flights per charge, then folds for travel.

Curved and Straight

Curved and Straight

Engineered for both straight and curved staircases, providing reliable mobility where standard stairlifts cannot.