The 2026 Wallke H9 Ultra is not just another high-power folding fat-tire ebike — it’s marketed as the world’s first e-bike with a patented Off-grid PowerStorage system. That means it’s built to be both a 40 mph, 3800W-peak folding fat-tire e-bike and a 2.64 kWh portable power station you can use to run camp gear, tools, and emergency devices when you’re off the grid.
On paper, you’re looking at a 48V 55Ah (≈2640Wh) energy-storage battery, a 2000W rear hub motor (3800W peak), 20″ x 4.0″ puncture-resistant Arisun fat tires, four-piston hydraulic disc brakes, and a folding aluminum frame rated for 400 lb payload.
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👉 See the official Wallke H9 Ultra specs and current availability here.
TL;DR – Wallke H9 Ultra at a Glance
| Category | Details |
|---|---|
| Bike Type | Folding 20″ x 4.0″ fat-tire ebike with Off-grid PowerStorage battery |
| Motor | 48V 2000W rear hub motor (peak 3800W), torque-sensor drive |
| Battery | 48V 55Ah (≈2640Wh) Off-grid PowerStorage pack, UL 2271 certified |
| Top Speed | Up to 40 mph (brand claim) |
| Claimed Range | Up to 150 miles per charge under ideal conditions |
| Realistic Range | Roughly 60–110 miles PAS and 40–80 miles throttle-heavy, depending on terrain, load, and speed |
| Tires | 20″ x 4.0″ Arisun all-terrain fat tires, puncture-resistant |
| Suspension | Full aluminum air suspension fork + rear spring shock |
| Brakes | Four-piston hydraulic disc brakes, 203 mm rotors |
| Weight Limit | 400 lb max payload, rear seat rated to 110 lb |
| Best For | Riders who want a high-speed folding fat-tire ebike that can also act as a 2.6 kWh off-grid power station for gear/camps |
Note: Wallke labels this as a 2026 model, but this review is based on its 2025 launch-era specs and pre-order details.
👉 Check the Wallke H9 Ultra product page for launch updates, shipping windows, and full specs.
Key Specs: Wallke H9 Ultra Technical Overview
Wallke’s own spec sheet for the H9 Ultra lists the following core numbers and components:
| Spec Category | H9 Ultra Details |
|---|---|
| Model | 2026 Wallke H9 Ultra Folding Off-grid PowerStorage E-Bike |
| Drive System | Single rear motor drive, 48V 2000W hub motor (peak 3800W) |
| Battery | 48V 55Ah energy-storage battery (≈2640Wh), UL 2271 certified |
| Off-Grid Output | Battery pack rated 600W as a power station (for external devices) |
| Controller | 18-tube controller |
| Top Speed (Claimed) | Up to 40 mph |
| Climbing (Claimed) | 45°+ |
| Claimed Max Range | Up to 150 miles per charge |
| Pedal Assist Levels | Specs list 3 PAS levels, features list 5-level pedal assist (Wallke’s own copy is inconsistent) |
| Riding Mode | Torque sensor + pedal assist (PAS), plus throttle |
| Tires | 20″ x 4.0″ Arisun all-terrain fat tires, puncture-resistant |
| Brakes | Four-piston hydraulic disc brakes, 203 mm front & rear rotors, ~2.7 mm thick |
| Frame | Reinforced 6061 aluminum alloy, front & rear 3.0 mm thickness, folding frame |
| Fork | Full aluminum alloy air suspension fork, adjustable |
| Rear Shock | Aluminum alloy spring shock absorber |
| Display | 4″ full-color intelligent LCD with Bluetooth & GPS |
| Lights | 1000-lumen 48V LED headlight, integrated brake/running light |
| Max Payload | 400 lb total, rear seat rated up to 110 lb |
| Rider Height | Recommended for riders over 5’3″ |
| Charging Time | ≈8–10 hours from low to full |
| Drivetrain | Shimano 7-speed rear derailleur, 52T alloy chainring, anti-rust chain |
| Extras | Folding pedals, integrated USB I/O on battery, waterproof main cable, rear rack & fenders included |
Battery note: One feature bullet briefly mentions 2880Wh for the 55Ah pack, but Wallke’s detailed spec table ties 55Ah to 2640Wh (48V x 55Ah). This review treats 2640Wh as the correct rating and calls out the higher figure as a copy error.
PAS note: one section of the tech copy lists 3 pedal-assist levels, while the “Features” block later references 5-level pedal and throttle assist. Expect multiple PAS levels (3–5) and check your specific firmware/settings on delivery.
Off-Grid PowerStorage: Ebike + 2.64 kWh Power Station
The defining feature of the H9 Ultra is its Off-grid PowerStorage battery system. Instead of a conventional ebike pack that only powers the motor, Wallke builds a 48V 55Ah pack (≈2640Wh) that’s explicitly designed to act like a portable power station for external devices.
Key battery details from Wallke’s own page:
- UL 2271 certified energy-storage pack.
- 2640Wh capacity, matched to the 48V 55Ah rating.
- Battery rated for 600W output as an off-grid power source.
- Wallke gives examples like powering phones, laptops, camp lights, mini-fridges, fans, kettles, and more within that power envelope.
What that means in real use:
- On the ebike side, 2640Wh is more than double the capacity of many “big battery” commuter bikes.
- On the off-grid side, it behaves like a mid-sized portable power station, useful for:
- Camping and vanlife (lights, fans, small appliances)
- Jobsite power (tools within the 600W rating)
- Emergency backup (phones, laptops, comms gear, medical equipment that fits the power budget)
For riders who want one battery to power both their ride and their campsite, this is the H9 Ultra’s main value proposition.
Motor & Speed: 2000W Rear Hub, 3800W Peak
Unlike the dual-motor H9 AWD, the H9 Ultra uses a single rear hub motor, but it’s a big one:
- 48V 2000W nominal rear motor
- Peak power up to 3800W
- Brand-claimed 40 mph top speed
- Claimed climbing capability of 45°+
Translated into riding expectations:
- This is well beyond a typical 750–1000W fat-tire folder; it’s closer to a light electric moped in feel.
- Expect very strong acceleration from 0–25+ mph, especially in higher PAS or full throttle.
- Steep hills with a loaded bike (rider + cargo) should feel manageable where lower-powered hub bikes bog down.
Ebike class & legality
A bike capable of 40 mph with throttle and high PAS levels sits outside the standard U.S. Class 1/2/3 definitions unless you electronically cap the speed. In many markets, you’ll want to:
- Use the display/app to set lower speed limits (e.g., 20–28 mph) when riding in public bike lanes, and
- Treat the full 40 mph capability more like a private-property or off-road mode.
If you care about compliance, plan on configuring the H9 Ultra to respect your local ebike rules instead of just riding it wide open everywhere.
Battery, Range & Charging: 48V 55Ah (≈2640Wh)
On the range side, Wallke quotes up to 150 miles per charge for the H9 Ultra under ideal conditions. With a 2640Wh pack, that’s not impossible on lower PAS and slow speeds, but everyday results will vary a lot.
A realistic planning range for most riders is:
- PAS: roughly 60–110 miles per charge
- Closer to 100–150 miles if you’re light, stay in low PAS, cruise below ~20 mph, and ride mostly flat pavement.
- Closer to 60–80 miles if you’re heavier, carry gear, run mid-high PAS, or climb a lot.
- Throttle-heavy: roughly 40–80 miles, depending on how often you push toward the upper end of the speed range.
You’re working with a huge energy budget compared with typical ebikes, but the 2000W motor and 40 mph capability can burn through it quickly if you ride like a small motorcycle.
Charging time is listed around 8–10 hours with the included charger, which is in line with the pack size.
Ride Comfort & Handling: Air Fork + Rear Shock + Fat Tires
The H9 Ultra is fully kitted out for comfort and control on mixed terrain:
- Full aluminum alloy air suspension fork, adjustable with lockout and damping control.
- Aluminum alloy rear spring shock absorber for extra comfort over bumps.
- 20″ x 4.0″ Arisun all-terrain fat tires, puncture-resistant and rated for higher speeds.
On the road or trail, that setup delivers:
- A noticeably softer ride than a rigid or front-suspension-only folder, especially on potholes, gravel, and forest roads.
- Improved traction and control when cornering or climbing on loose surfaces.
- The option to lock out the front fork on smoother surfaces to reduce bob and improve pedaling efficiency.
Because the bike is built around a thick 3.0 mm aluminum frame and heavy-duty components, it’s not a featherweight — but the upside is a very solid, planted feel at speed and under load.
Brakes & Safety: 4-Piston Hydraulics, 203 mm Rotors
A 40 mph, 3800W-peak folding bike needs serious brakes, and Wallke equips the H9 Ultra with:
- Four-piston hydraulic disc brakes, front and rear
- 203 mm rotors (≈2.7 mm thick)
Compared with typical 2-piston/180 mm setups, you get:
- Higher braking force with less finger effort, especially on long descents.
- Better heat management, which matters when stopping a heavy, fast bike repeatedly.
- More confidence when riding at 25–40 mph with a loaded rear rack or passenger.
Lighting and visibility are also strong points:
- A 1000-lumen 48V LED headlight for serious nighttime visibility.
- Integrated brake and running light at the rear to communicate stops to traffic.
Combined with the UL-certified battery pack and the beefy frame, the H9 Ultra is clearly engineered to cope with its own performance envelope rather than just chasing a big wattage headline.
Controls, Display & Smart Features
On the cockpit and electronics side, the H9 Ultra includes:
- A 4″ full-color intelligent display with:
- Bluetooth connectivity
- GPS tracking
- Speed, PAS level, battery, mileage, lights, brake indicators, and more
- Torque sensor + cadence sensor combo:
- Torque sensor for responsive, natural-feeling pedal assist
- Cadence sensor to back it up and keep assist predictable
- Right-side half-twist throttle with integrated horn
- Battery with input/output interface so it can act as a power station
Wallke’s marketing highlights app-linked features like:
- Live ride stats and tracking
- GPS-based location and security features (depending on app support)
- Password protection/lock functions
Overall, the control stack gives the H9 Ultra a “smart ebike + power station” feel rather than a basic analog fat-tire bike with a big battery.
What’s in the Box?
Based on Wallke’s launch materials, you can expect an H9 Ultra package to include:
- Wallke H9 Ultra ebike (folding frame, pre-installed components)
- 48V 55Ah Off-grid PowerStorage battery
- Battery charger (matched to the 55Ah pack)
- Front and rear fenders
- Rear rack
- Integrated headlight and tail/brake light (pre-installed)
- Folding pedals
- Basic tool kit and user manual
Exact accessories can vary slightly by batch or promo, but the rack, fenders, lighting, and charger are part of the core package.
Portability, Frame & Everyday Practicality
Despite the “Ultra” name and huge battery, this is still a folding frame:
- Reinforced 6061 aluminum alloy frame, front & rear 3.0 mm thickness
- Folding design for transport and storage
- Rated 400 lb max payload, with 110 lb rear seat rating for cargo or a passenger (where legal)
Practical takeaways:
- It’s foldable, but not small in the sense of a 35–50 lb city folder — expect a big, heavy package that fits in SUVs, vans, and RVs more easily than in tiny car trunks.
- The high payload rating makes it well-suited to:
- Heavier riders
- Riders carrying tools, camping gear, or work equipment
- Occasional passenger duty (within the stated limits and local laws)
If you want something to throw over your shoulder on a subway staircase, this isn’t it. But if your “portability” means folding the bike to stash it in a vehicle or against a wall, the H9 Ultra is designed for that use case.
Pros & Cons
Pros
- Massive 48V 55Ah (≈2640Wh) Off-grid PowerStorage battery that doubles as a portable power station for camp, jobsite, or emergency use.
- 2000W rear motor (3800W peak) with torque sensor for powerful, responsive performance and serious hill-climbing.
- Brand-claimed 40 mph top speed with 45°+ climbing ability and up to 150-mile range under ideal conditions.
- Four-piston hydraulic disc brakes with 203 mm rotors, appropriate for a heavy, fast folding bike.
- Full aluminum air suspension fork + rear spring shock and 20″ x 4.0″ Arisun fat tires for comfort and traction on mixed terrain.
- UL 2271-certified battery and robust BMS protections (overcharge, over-discharge, overheat, short-circuit).
- Smart 4″ color display with Bluetooth & GPS, plus torque + cadence sensing for smoother PAS.
- 400 lb payload and included rack/fenders make it practical for real work, not just play.
Cons
- The combination of huge battery, big motor, and heavy-duty frame means this bike will be significantly heavier than a typical folding ebike.
- Out-of-the-box 40 mph capability may exceed legal ebike limits in many regions unless you configure lower speed caps.
- Wallke’s own copy is inconsistent on PAS levels (3 vs 5) and once references 2880Wh instead of 2640Wh for 55Ah; the overall picture is clear, but details aren’t perfectly tidy.
- Folding helps with storage, but this is still a large, high-power machine — not a “throw it in any trunk” micro-folder.
- Overkill if you primarily ride short city trips and never need off-grid power for devices.
Who the Wallke H9 Ultra Is Best For
The H9 Ultra is a strong match if you:
- Want an ebike that is both a serious high-speed, high-range folding fat-tire machine and a 2.6 kWh portable power station.
- Do long-distance riding, camping, vanlife, work transport, or rural commuting where off-grid power is a real advantage.
- Have a garage, RV rack, van, or ground-floor storage and aren’t worried about lifting a heavy bike upstairs.
- Appreciate torque-sensor assist, hydraulic brakes, and a high-end suspension setup that match the performance.
- Need a high payload rating for gear, tools, or an occasional passenger.
If your idea of a dream bike involves multi-day rides, remote trails, and camp gear running directly off your ebike battery, the H9 Ultra is very much in that lane.
Who Might Want a Different Bike
You may want to look elsewhere if:
- You live in a walk-up apartment and need something lighter and easier to carry.
- You mostly ride short urban commutes and never intend to use off-grid power features.
- You prefer a strict Class 1/2 commuter that tops out at 20 mph with no temptation to push higher.
- You’re more interested in a lightweight city folder than a high-power, long-range machine.
In those scenarios, a smaller motor, smaller battery, and lighter frame will likely make more sense.
Final Thoughts: Is the Wallke H9 Ultra a Good Fit?
The 2026 Wallke H9 Ultra is a rare combination: a folding 40 mph, 3800W-peak fat-tire ebike with a 48V 55Ah Off-grid PowerStorage battery that can power your ride and your campsite from one massive, UL-certified pack. It’s unapologetically big, powerful, and feature-dense — which is exactly what some riders are looking for.
If you want an ebike that can:
- Crush long-distance, heavy-duty rides,
- Serve as a serious off-grid power source, and
- Still fold down to fit in a vehicle or tight storage spot,
the H9 Ultra absolutely deserves a close look.
