HKM-633619 — D11 Series
Electric Wheelchair
A meticulously engineered mobility solution that fuses lightweight aluminum craftsmanship with advanced lithium battery technology — delivering uncompromising independence, effortless portability, and a driving experience refined for the modern world.
Core Advantages at a Glance
Dual Removable Lithium Batteries
Two 24V 6AH lithium packs — swap, charge independently, or carry spares for uninterrupted journeys. No downtime, just freedom.
12.4-Mile Range Per Charge
Travel up to 12.4 miles (20 km) on a single charge. Explore parks, run errands, or navigate urban streets with confidence.
Just 61.7 lbs Net Weight
At only 61.7 lbs (28 kg), the aluminum alloy frame offers an exceptional strength-to-weight ratio — easy to lift, load, and transport.
Ultra-Compact Folded Size
Folds to just 25.2 × 14.2 × 30.3 inches (640 × 360 × 770 mm) — fits most car trunks and tight storage spaces with ease.
Intelligent Battery Architecture
The D11 redefines electric wheelchair power management with a dual removable lithium battery system that prioritizes user convenience above all else. Each of the two 24V 6AH lithium-ion packs operates independently, meaning you can charge one while the other powers your chair, or carry both for maximum range. Unlike sealed lead-acid alternatives that tether you to a wall outlet for hours, this modular design lets you simply swap in a fresh battery and keep moving.
Why Lithium-Ion? Compared to traditional lead-acid batteries, lithium-ion cells deliver roughly 3× the energy density at a fraction of the weight. They exhibit virtually no memory effect, maintain stable voltage throughout discharge, and offer significantly longer cycle life — often exceeding 800–1,000 full charge cycles before noticeable degradation. This translates to years of reliable daily use without the bulk or maintenance headaches of legacy battery chemistry.
Hot-Swap Capability
Batteries detach in seconds without tools. Keep a spare charging at home or in your vehicle — ideal for long outings, travel, or emergency preparedness.
Fast Recharge Cycle
Each 6AH battery reaches full charge in approximately 4–6 hours with the included charger. Overnight charging ensures a full day of mobility.
Built-In Battery Management System (BMS)
Each pack includes an integrated BMS that safeguards against overcharge, over-discharge, short circuits, and thermal runaway — ensuring safe, consistent performance across thousands of cycles.
12.4 Miles of Uninterrupted Freedom
With a single full charge of both 24V 6AH lithium batteries, the HKM-633619 D11 delivers a driving range of up to 12.4 miles (20 kilometers). This figure represents real-world mixed-terrain performance — encompassing flat pavement, gentle inclines, and typical urban surfaces. For most users, 12.4 miles comfortably covers a full day of errands, social visits, recreational park outings, or indoor/outdoor navigation at large venues.
Range Intelligence: Actual range varies based on user weight, terrain gradient, ambient temperature, and speed setting. At the optimal cruising speed of approximately 2.5–3.1 mph (4–5 km/h) on level ground, many users report ranges that meet or exceed the rated 12.4-mile specification. Carrying a spare battery set effectively doubles your radius to nearly 25 miles (40 km) — enough for full-day excursions without range anxiety.
Consistent Power Delivery
Lithium chemistry maintains near-constant voltage until nearly depleted — no gradual slowdown as the battery drains, unlike lead-acid systems that fade noticeably.
Battery Status at a Glance
An intuitive LED indicator on the control panel displays remaining charge in real time, so you always know exactly how much range remains before needing a swap or recharge.
Aerospace-Grade Aluminum Alloy Frame
The backbone of the D11 is a precision-welded aluminum alloy chassis that achieves an ideal balance between structural rigidity and weight minimization. Aluminum alloys — specifically those in the 6000-series family commonly used in aerospace and automotive engineering — offer a tensile strength comparable to mild steel at roughly one-third the density. This material selection is not accidental; it reflects a deliberate engineering philosophy that every pound saved enhances portability without compromising rider safety.
Material Advantage: Unlike steel frames that add significant heft and are prone to corrosion, aluminum alloy naturally forms a protective oxide layer that resists rust and environmental degradation. The result is a frame that remains structurally sound and aesthetically clean through years of use in varied climates — from humid coastal regions to dry inland environments. At a net weight of just 61.7 lbs (28 kg), the D11 is among the lightest full-featured electric wheelchairs in its class.
Precision TIG-Welded Joints
Every connection point on the frame undergoes tungsten inert gas welding for superior strength and a clean, smooth finish that resists stress fractures over time.
Corrosion-Resistant Finish
The sleek black anodized coating not only provides a modern aesthetic but also adds an extra layer of protection against scratches, UV exposure, and moisture.
Engineered for Compact Storage
Space efficiency is a cornerstone of the D11's design. When unfolded, the chair provides a generous seating area measuring 39.4 × 25.2 inches (1000 × 640 mm) with an adjustable backrest height ranging from 41.3 to 46.1 inches (1050–1170 mm). Yet with a few simple motions, the entire unit collapses to a remarkably compact 25.2 × 14.2 × 30.3 inches (640 × 360 × 770 mm) — a footprint small enough to slide into a sedan trunk, stow in a hallway closet, or tuck beneath a desk.
39.4 × 25.2 in
Unfolded Footprint (L×W)
25.2 × 14.2 × 30.3 in
Folded Dimensions (L×W×H)
41.3 – 46.1 in
Adjustable Height Range
61.7 lbs
Net Weight (28 kg)
Robust Load Capacity & Rider Safety
The D11 supports a maximum user weight of 265 lbs (120 kg), a figure validated through rigorous static and dynamic load testing. This capacity is achieved through a combination of the high-strength aluminum frame, reinforced cross-bracing at key stress points, and a low center of gravity that enhances stability during turns and on inclines. The wide wheelbase — spanning 25.2 inches (640 mm) — further contributes to tip resistance, a critical safety metric for electric mobility devices.
Stability Engineering: The D11's anti-tip rear casters and wide stance work in concert to provide confident handling on slopes up to 6–8 degrees. The chair's weight distribution has been optimized so that even at maximum load, the drive wheels maintain consistent ground contact for reliable traction on varied surfaces including pavement, packed gravel, and indoor flooring.
Ergonomic Seating Geometry
The seat pan and backrest are contoured to distribute pressure evenly, reducing fatigue during extended use while maintaining proper spinal alignment.
Balanced Speed for Safety & Efficiency
The D11 reaches a top speed of 3.7 mph (6 km/h) — a carefully calibrated pace that aligns with pedestrian walking speeds in crowded environments while remaining brisk enough for efficient point-to-point travel. This speed ceiling reflects a design philosophy that prioritizes rider and pedestrian safety over raw velocity. At 3.7 mph, you maintain full situational awareness, can stop within a short distance, and navigate doorways, crosswalks, and store aisles with precision.
Speed Context: The average human walking pace is approximately 2.5–3.1 mph (4–5 km/h). At 3.7 mph, the D11 matches or slightly exceeds typical walking speed, allowing you to keep pace with companions on foot while retaining the ability to slow to a crawl for tight maneuvers. The proportional joystick controller enables infinitely variable speed adjustment between a gentle creep and the maximum 3.7 mph setting.
Proportional Joystick Control
The hall-effect joystick responds to subtle pressure changes, translating your intent into smooth acceleration and deceleration — no jerky starts or abrupt stops.
Electromagnetic Braking
Releasing the joystick engages an automatic electromagnetic brake that holds the chair securely in place — even on moderate inclines — without manual locking levers.
Rider-Centric Comfort Design
Comfort is not an afterthought in the D11 — it is woven into every contact point. The padded seat cushion uses high-resilience foam that retains its shape after thousands of hours of use. The adjustable backrest height (41.3–46.1 inches / 1050–1170 mm) accommodates a wide range of torso lengths, while the flip-up armrests simplify lateral transfers in and out of the chair. The swing-away footrests can be adjusted for leg length and pivoted outward for unobstructed entry and exit.
Breathable Upholstery
The seat and backrest covers are made from a durable, breathable textile that wicks moisture and resists staining — keeping you cool and comfortable during warm-weather outings.
Tool-Free Adjustability
Armrest height, footrest angle, and backrest position can all be modified without tools — enabling quick personalization for different users or seating preferences.
Complete Technical Specifications
HKM-633619
Model Number
Aluminum Alloy
Frame Material
61.7 lbs (28 kg)
Net Weight
265 lbs (120 kg)
Max Load Capacity
3.7 mph (6 km/h)
Top Speed
12.4 mi (20 km)
Range Per Charge
2 × 24V 6AH
Battery Configuration
Lithium-Ion
Battery Chemistry
39.4×25.2 in
Unfolded (L×W)
41.3–46.1 in
Height Range
25.2×14.2×30.3 in
Folded (L×W×H)
Black
Finish Color
CE Certified
Safety Compliance
Joystick (Hall-Effect)
Control Interface
CE Quality Certification & Rigorous Testing
The HKM-633619 D11 carries CE certification, signifying compliance with the health, safety, and environmental protection standards required for products sold within the European Economic Area. This certification is not merely a label — it represents a battery of independent laboratory tests covering electromagnetic compatibility (EMC), mechanical durability, electrical safety, and material biocompatibility. For the user, CE marking provides assurance that the D11 has been scrutinized against some of the world's most stringent regulatory benchmarks for medical and mobility devices.
What CE Testing Covers: Electromagnetic interference shielding (so the chair won't interfere with pacemakers or other sensitive electronics), structural load testing beyond rated capacity, brake holding force verification on specified gradients, battery safety under overcharge and short-circuit conditions, and flammability resistance of upholstery materials. Each production batch undergoes quality control sampling to maintain consistency.
Frequently Asked Questions
How long does it take to fully charge both batteries?
Each 24V 6AH lithium battery typically reaches a full charge in 4 to 6 hours using the included charger. Since the batteries charge independently, you can charge both simultaneously with two chargers (available separately) or sequentially with one. For most users, overnight charging easily prepares the chair for a full day of use. The intelligent BMS within each pack automatically stops charging once full, preventing overcharge damage.
Can the D11 be used on uneven terrain or gentle slopes?
Yes. The D11 is designed for mixed-surface mobility. It handles paved roads, sidewalks, packed gravel paths, park trails, and indoor flooring with confidence. The wide 25.2-inch wheelbase and anti-tip rear casters provide stable handling on inclines up to approximately 6–8 degrees. For loose sand, deep gravel, or steep off-road gradients, we recommend assessing conditions carefully, as these exceed the design parameters of most compact electric wheelchairs. The solid, non-pneumatic tires eliminate the risk of flats while providing dependable traction on varied surfaces.
How easy is it to fold and transport the D11?
Folding the D11 is a straightforward, tool-free process that takes under 30 seconds once familiar. The backrest folds forward, the armrests flip up, and the main frame collapses laterally. At its folded size of 25.2 × 14.2 × 30.3 inches (640 × 360 × 770 mm), it fits into most sedan trunks, SUV cargo areas, and even some larger taxi trunks. At 61.7 lbs (28 kg) net weight, it is manageable for one person to lift into a vehicle, though assistance may be preferred. The removable batteries can be taken out beforehand to reduce lifting weight by several pounds.
What is the lifespan of the lithium batteries, and are replacements available?
The 24V 6AH lithium-ion batteries are rated for 800 to 1,000+ full charge cycles before capacity drops below 70% of the original specification. For a typical user charging every other day, this translates to approximately 4–6 years of reliable service. Replacement batteries are readily available and use a standardized connector, making swaps effortless. Because the system uses two independent packs, you can replace them individually as needed rather than purchasing a pair simultaneously.
Is the seat cushion removable and washable?
Yes. The seat cushion and backrest cover are removable for cleaning. The upholstery is made from a durable, moisture-resistant textile that can be wiped down with a damp cloth for daily maintenance or removed entirely for deeper cleaning. We recommend air-drying the covers to preserve their shape and breathability. The underlying high-resilience foam core is sealed against moisture ingress, protecting it from spills and humidity.
Does the D11 require assembly upon delivery?
The D11 arrives largely pre-assembled. Most users simply need to unfold the frame, attach the joystick controller bracket (one tool-free connection), insert the batteries, and adjust the footrests to their preferred position. The entire setup process typically takes under 10 minutes. A detailed instruction manual with diagrams is included, and no specialized tools are required.
Purchase with Confidence
Free Shipping on All Orders
Complimentary standard shipping to your doorstep. Every order is carefully packaged for safe transit.
180 Days Purchase Protection
Extended coverage against manufacturing defects. Your investment is safeguarded for half a year from delivery.
30 Days Money-Back Guarantee
Not completely satisfied? Return within 30 days for a full refund. Simple, straightforward, no hassle.
24 Months Warranty Service
Two full years of comprehensive warranty coverage including free spare parts support for peace of mind.
Nationwide Service Network & Support
With over 3,000 authorized service centers across the United States, we ensure comprehensive after-sales support for your vehicle, giving you complete peace of mind.
We understand that maintenance needs may arise. When you purchase from us, you gain access to our unparalleled service ecosystem designed for maximum convenience and reliability.
1. DIY Repair & Parts Replacement:
For minor repairs or part replacements that can be handled personally, we provide cost-price genuine parts during the warranty period. Each order is accompanied by clear, step-by-step video tutorials to guide you through the self-repair process seamlessly.
2. Professional Servicing:
For issues requiring expert attention, simply contact our support team. We will locate the nearest authorized service center based on your order and location details. You only need to bring your vehicle to the designated center. Once servicing is complete, we will notify you for pickup. All repairs are free during the warranty period; afterward, only cost-based fees apply.
Rest assured—wherever you are, our extensive partner network is ready to keep your ride running smoothly.
Lifetime Limited Powertrain Warranty & Wrap Program
For added long-term security, our Lifetime Limited Powertrain Warranty and Lifetime Wrap Program provide continued mechanical breakdown coverage for as long as you own your vehicle—with no term or mileage restrictions.
Every product on Hekomart.com is expertly curated from thousands, quality tested, and lifestyle approved. Elevate your everyday.
Express Delivery Priority - Where Speed Meets Satisfaction
At Hekomart.com, we understand the anticipation that comes with every online order. While most platforms rely on standard economy shipping, we prioritize your excitement by strategically selecting premium express carriers to accelerate deliveries. Our intelligent logistics system analyzes real-time data to optimize routes, partnering with globally-recognized couriers like DHL, FedEx, and UPS to ensure 30% faster doorstep arrivals* than industry averages.
Every package receives 24/7 tracking visibility and proactive delivery updates, transforming waiting time into confidence. For time-sensitive purchases, our "Expedited Service Guarantee" offers optional priority handling at no extra cost, because your satisfaction isn't just a goal – it's the core of our delivery DNA.
*Based on internal 2025 data comparing standard shipping durations across major platforms. Delivery times vary by destination and customs procedures.
Credit Card 180 Days Purchase Protection
The 180 Days Purchase Protection protects the buyer if an item purchased has not been shipped or if a shipped item is significantly not as described by the seller. The 180 Days Purchase Protection covers all purchases and payments made through our website. We accept Visa, Master Card, American Express, and Discover Card. If you don't receive the item that you ordered, or it shows up significantly different from its description, you may qualify for Purchase Protection, and we'll reimburse you for the full purchase price plus any original shipping costs, subject to terms and limitations. If you are charged for a transaction that you didn't make, let us know within 60 days, and we've got you covered.
30 Days Money-Back Guarantee
We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost. No restocking charges. Any additional fees associated with a purchase transaction will be deducted from the amount of the refund.
24-Month Extended Warranty Service
If you purchase products from our website, you have 24 months to request repairs or replacement if any products turns out to be faulty or are not as advertised. During the warranty period if any product is found to have a manufacturer defect, we will repair or replace the defective part(s). If a product cannot be repaired or replaced within a reasonable time, you can request a refund or price reduction. We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost.
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