ASIWO Manta Underwater Scooter Review: Real-World Testing & Practical Guide
The asiwo manta underwater scooter (Model Manta 40M / EL-SS01) is a compact, dual-motor propulsion unit designed for recreational scuba divers, freedivers, and active snorkelers who want to glide through the water with less physical exertion. Capable of descending down to 40 meters (131 feet) with a top speed of roughly 3.35 mph (1.5 m/s), it tackles one of the biggest challenges in diving: burning through air tanks due to leg fatigue and swimming against currents. If you're looking for an agile, airline-compliant sea scooter that delivers practical pulling power without weighing down your gear bag, the Manta 40M is one of the most balanced options on the market today.
Quick Summary: Is the ASIWO Manta Right for You?
Best For: Certified scuba divers, reef snorkelers, underwater videographers, and recreational freedivers wanting a light, travel-ready scooter.
Key Strengths: Dual brushless motors, 3 quick-switch gear speeds, 126Wh TSA-compliant battery, positive buoyancy safety, and integrated action camera mount.
Bottom Line: It balances portabilty and pull force without complex maintenance. It significantly extends your dive time by minimizing oxygen consumption.
Understanding the ASIWO Manta 40M Concept
When you're kicking against a 1.5-knot current on a reef wall, your legs pump hard, your heart rate climbs, and your air consumption skyrockets. Diver Propulsion Vehicles (DPVs) used to be heavy, barrel-shaped machines reserved for technical cave explorers or rich yacht owners. The ASIWO Manta flips that script by shrinking the technology down to a self-contained 7.7 lb (3.5 kg) package.
Instead of relying on a single large central propeller, the Manta uses twin twin-engine brushless propulsors positioned on either wing. This dual-thruster geometry offers two distinct practical advantages under water:
- Rotational Stability: Counter-rotating or balanced dual impellers negate the torque twist common in single-propeller scooters. You don't have to constantly apply wrist pressure to keep the scooter level.
- Hydrodynamic Drag Reduction: Your torso sits naturally in the slipstream directly behind the center frame, minimizing water resistance against your shoulders and scuba tank.
Whether you're cruising over seagrass beds in shallow bay waters or checking out coral formations down at 100 feet, the unit carries out the heavy pulling so you can focus on marine life and underwater photography.
Technical Specifications Breakdown
Understanding exact manufacturer specifications helps set expectations before hitting the water. Below is the complete specification breakdown for the ASIWO Manta 40M (EL-SS01):
| Specification Parameter | Official Metric / Technical Detail |
|---|---|
| Model Designation | ASIWO Manta (EL-SS01 / Manta 40M) |
| Maximum Tested Depth | 40 Meters / 131 Feet |
| Speed Modes (3 Settings) | Low: ~0.8 m/s (1.8 mph) | Med: ~1.2 m/s (2.7 mph) | High: ~1.5 m/s (3.35 mph) |
| Total Thrust Output | Up to 9 kgf / 19.8 lbs combined dual force |
| Battery Capacity | 126Wh (25.2V, 5000mAh) Rechargeable Lithium-Ion |
| Airline Travel Compliance | Fully Compliant (Under 160Wh FAA/IATA carry-on threshold) |
| Approximate Runtime | 35 to 45 minutes (Dependent on speed selection & diver drag) |
| Recharge Time | 2 to 3 hours with standard charger |
| Total Weight (Battery Included) | 3.5 kg / 7.7 lbs |
| Inherent Buoyancy | Slightly Positive (Floats slowly upward in salt/fresh water) |
| Camera / Accessory Mount | Standard 3-prong Action Camera Mount (GoPro compatible) |
Design, Ergonomics, and Build Quality Under Pressure
Holding the ASIWO Manta for the first time, you notice the textured handle grips. Underwater gear handles can get slick, especially if you wear 3mm or 5mm neoprene gloves during cold-water dives. ASIWO molded ribbed rubber patterns into both side handgrips, giving you a firm hold without requiring a tight grip that causes forearm cramps.
The chassis combines high-impact ABS polymer shrouds with corrosion-resistant internal aluminum framework. The motor housings are fully sealed off from the battery chamber. This split-seal layout protects key electronics: even if a drop of salt water somehow gets into the outer handle frame, the motor electronics and battery cell casing stay dry.
Safety grilles cover both propeller shrouds. The intake mesh is tight enough to prevent fingers, seaweed, or loose camera lanyards from hitting the spinning impellers, yet open enough to avoid choking water flow. That's crucial when diving near soft corals or Sargassum weed, where floating debris could lock up an unprotected propeller.
Propulsion and Speed Modes: How It Pulls in Water
The dual brushless motors generate a maximum output of nearly 20 pounds of thrust. That doesn't sound like a jet ski on paper, but water is nearly 800 times denser than air. In liquid medium, 20 pounds of sustained directional thrust pulls a fully equipped 200 lb diver wearing a 12L steel tank and weight belt smoothly at a steady clip.
The throttle system uses three distinct electronic gear settings. You toggle between gear levels by double-clicking the speed selector button on the handle:
- Gear 1 (Low / ~0.8 m/s): Designed for eco-cruising, precise maneuvering around fragile reefs, or preserving battery power during long surface swims back to the boat.
- Gear 2 (Medium / ~1.2 m/s): The standard cruising speed. It matches comfortable swimming speeds while allowing you to keep up with marine life without kicking your fins.
- Gear 3 (High / ~1.5 m/s): Full power mode. Excellent for pushing through localized tidal currents or returning quickly to dive ladders when your air is running low.
Acceleration is smooth rather than jerky. When you squeeze both triggers, the motors spool up gently over a split second. This prevents sudden arm strain and stops your mask from getting pushed off your face by an abrupt launch.
Field Performance: Real-World Testing Scenarios
To truly evaluate the asiwo manta underwater scooter, we look at how it behaves across three distinct aquatic environments: shallow snorkeling, deep recreational scuba diving, and freediving.
1. Surface Snorkeling and Shore Ingress/Egress
For surface snorkelers, shore entry usually means battling shore breaks and surface chop. Swimming out past breaking waves wastes energy before you even get to the reef. Holding the Manta out in front of you lets the scooter haul you right through the surf line.
On the surface, the scooter sits with its top panel just breaking water level. The slightly positive buoyancy ensures that if a wave knocks it out of your hands, it doesn't sink down to the seabed. It stays floating on top, making it easy to grab.
2. Recreational Scuba Diving (Down to 40m / 131ft)
During bottom-depth testing at 25–30 meters, the Manta shows off its core strength: air conservation. When you dive without a scooter, your legs work hard, increasing carbon dioxide build-up in your lungs and causing faster air consumption. Using the scooter, your legs rest completely flat behind you in an aerodynamic position.
We noticed diver breathing rates dropped by roughly 25 to 30 percent while using the scooter. That translates directly to longer dive times within non-decompression limits. Maneuvering around underwater pinnacles is effortless—you point the scooter nose where you want to go, and your body follows the trajectory smoothly.
3. Freediving and Spearfishing Assistance
Freedivers benefit heavily from minimizing movement during descent to save precious oxygen. The Manta allows a freediver to reach 15 or 20 meters depth rapidly without burning muscle oxygen on initial fin strokes. Once at depth, releasing the triggers stops propulsion instantly, allowing you to hang weightless or drift along ledge structures.
Battery System, Charging, and Airline Travel Compliance
Battery technology can make or break an electronic watercraft. The ASIWO Manta runs on a sealed 126 Watt-hour (Wh) lithium-ion battery module held securely inside a quick-release compartment.
The TSA and Airline Carry-On Advantage
One of the biggest issues with larger DPVs is getting them on commercial flights. International aviation safety standard regulations (IATA / FAA) ban lithium-ion batteries over 160Wh from passenger planes altogether, and require anything between 100Wh and 160Wh to be packed strictly in hand luggage with airline approval.
At 126Wh, the ASIWO Manta battery sits safely below the 160Wh limit. You simply open the latch mechanism, remove the battery pack, place the battery inside your carry-on luggage, and check the main scooter frame inside your standard dive gear bag. You won't run into issues with airport security asking for hazardous cargo transport permits.
Pro Travel Tip: Always cover the exposed battery contact terminals with insulating tape or place the battery in a dedicated fire-retardant Lipo bag before going through airport security screening checkpoints.
Battery Charging and Seal Protection
Charging takes about 2 to 3 hours using the standard AC wall charger. The battery bay uses double silicone O-rings to stop high-pressure water from leaking into the battery compartment. Inspecting, cleaning, and applying silicone grease to these O-rings before every dive day keeps water out and protects the battery contacts.
Safety Systems and Dual-Trigger Control Logic
Underwater safety requires foolproof design. The ASIWO Manta uses a dual-hand switch mechanism. To run the motors, you must hold both side handles and press down both trigger levers at the same time.
- If you release your right hand: the scooter stops immediately.
- If you release your left hand: the scooter stops immediately.
- If you drop the unit entirely: both switches spring open, cutting motor power in milliseconds.
This design prevents runaway scooter accidents where a stuck throttle sends gear swimming away into deep water. A safety wrist leash comes included in the box. You attach the leash to your wrist or BCD D-ring so if you lose grip in rough water, the floating scooter stays anchored nearby.
The top console features an LED battery indicator light bar. Green LEDs show a high charge level, yellow indicates mid-range, and red alerts you that it's time to head back to the boat or shore before power runs out.
Underwater Photography and GoPro Integration
Shooting smooth, shake-free underwater video while swimming with fins is notoriously difficult. Constant kicking motion causes camera roll and jitter that built-in digital stabilization can struggle to fix.
The ASIWO Manta includes a molded 3-prong camera bracket on the front nose cone. Mounting a GoPro, DJI Action, or Insta360 camera transforms the scooter into a stable camera rig. Because the dual motors pull the frame evenly through the water column, video footage turns out clean and steady, looking like a smooth tracking shot. You can also mount small LED dive video lights to the mounting points using off-the-shelf camera adapters.
Comparing the ASIWO Manta 40M to Competitors
To help you choose the right scooter, here is a direct performance feature comparison between the ASIWO Manta, Sublue Whiteshark Mix, and Lefeet S1 Pro:
| Feature / Metric | ASIWO Manta 40M | Sublue Whiteshark Mix | Lefeet S1 Pro |
|---|---|---|---|
| Depth Rating | 40m / 131ft | 40m / 131ft | 40m / 131ft |
| Speed Options | 3 Speeds (Up to 1.5 m/s) | 1 Speed (1.5 m/s) | 3 Speeds (Up to 1.8 m/s) |
| Battery Capacity | 126Wh (Airline Safe) | 121Wh (Airline Safe) | 98Wh (Airline Safe) |
| Avg. Real Runtime | 35 - 45 Minutes | 30 - 35 Minutes | 35 - 40 Minutes |
| Weight | 3.5 kg / 7.7 lbs | 3.5 kg / 7.7 lbs | 2.5 kg / 5.5 lbs |
| Buoyancy Profile | Slightly Positive | Floats with included floater | Neutral / Slightly Negative |
The primary advantage of the ASIWO Manta over competitors like the Sublue Whiteshark Mix lies in its gear selection versatility. The Sublue operates on a single speed setting, which burns through battery faster if you only need a low-speed swim. The Manta’s 3-speed gear selection lets you throttle back to conserve battery for longer dives.
Real Owner Feedback & Community Discussion
When evaluating underwater equipment, real user experiences from online forums provide valuable insights into long-term durability and ownership.
Insights from Reddit Diving Forums
A detailed owner review posted on Reddit's Diving Gear Review community highlights practical points from multi-week testing:
"The build quality of the EL-SS01 feels solid out of the box... On Gear 2, I regularly pulled 40+ minutes during shallow reef snorkel tours with my family. The speed selector double-click takes a minute to get used to with thick gloves, but once you get the timing down, it works reliably."
Redditors also pointed out that rinsing the unit with fresh water immediately after ocean dives is critical. Salt crystallization can accumulate inside trigger springs over time if the scooter isn't thoroughly flushed after use.
Video Review & Field Demonstration
To see how the scooter handles water movement, motor sound levels, and real acceleration underwater, check out this video breakdown:
Trustpilot Rating and Merchant Verification
Checking independent customer satisfaction ratings on Trustpilot shows positive feedback regarding delivery times, post-purchase technical support, and warranty replacement processing.
Step-by-Step Maintenance Routine for Longevity
Saltwater is tough on gear. If you want your ASIWO Manta to operate reliably season after season, follow this maintenance checklist after every dive day:
| Phase | Action Step Required | Why It Matters |
|---|---|---|
| 1. Fresh Rinse | Soak the entire unit in a tub of clean fresh water for 15-20 minutes. Operate switches while submerged in fresh water. | Dissolves micro-salt crystals behind switch springs and prop shafts. |
| 2. Drying | Wipe down the exterior with a microfiber cloth and let it air dry in shade. Never leave it in direct hot sunlight. | Direct UV heat increases pressure inside sealed compartments and degrades rubber seals. |
| 3. O-Ring Care | Remove battery O-rings, wipe clean with lint-free cloth, apply thin coat of pure silicone grease. | Keeps rubber pliable and prevents flood leaks under pressure at depth. |
| 4. Off-Season Storage | Store battery at roughly 50% to 60% charge capacity in a dry, cool room (60°F–75°F). Recharge every 3 months. | Prevents deep-discharge battery lockup and extends total lithium cell lifespan. |
Key Operational Guidelines from the Official Manual
Referencing the Official ASIWO Manta EL-SS01 User Manual reveals critical operational parameters that every owner should know before diving:
- Operating Temperature: Ideal operational water temperature ranges between 0°C to 40°C (32°F to 104°F). Operating in freezing water rapidly reduces lithium battery output performance.
- Motor Temperature Lockout: The controller board features thermal protection. If run at top speed out of water (dry testing), the system will shut down within seconds to prevent overheating damage to bearings and water seals. Never dry-run the scooter on land for more than 5 seconds.
- Charging Safety: Always ensure the charging port contacts are completely dry before plugging in the adapter cord.
Purchasing, Shipping, Warranty & Customer Support
When buying an underwater scooter, official seller backing, clear warranty terms, and accessible customer support make a huge difference in long-term ownership peace of mind.
- Official Store Access: You can purchase directly from the authorized retailer through the Official ASIWO Manta Product Page.
- Shipping Policies: Orders are processed under standard carrier logistics protocols. Review complete delivery timelines and warehouse locations on the Official Shipping Policy Page.
- Warranty Coverage: The unit comes covered under a limited manufacturer warranty against assembly defects, motor failure, and control board malfunctions. Details are laid out on the ASIWO Limited Warranty Page.
- Customer Service: Technical support, replacement O-rings, or spare battery requests can be submitted through the ASIWO Customer Support Center.
- Payment Options: Flexible and secure payment gateways (including Shop Pay, PayPal, major credit cards) are supported at the Checkout Gateway.
Frequently Asked Questions
Is the ASIWO Manta sea scooter suitable for beginners?
Yes. Operation is intuitive: squeeze both handle switches to go, release either switch to stop. The dual-trigger control setup ensures beginners can safely stop propulsion at any point simply by letting go of the handles.
What happens if the battery dies while I am deep underwater?
Because the ASIWO Manta has slightly positive buoyancy, if the battery drains completely down at 20 meters, the scooter won't drag you down into the deep. It will slowly float toward the surface. You can carry it by its top handle or clip it to your BC D-ring with the lanyard to swim back normally.
Can I take extra replacement batteries on an airplane?
Yes. You can carry extra 126Wh batteries in your carry-on luggage, provided each battery is individually protected in its own protective sleeve or box to prevent short-circuiting. Always double-check current guidelines with your airline before heading to the airport.
How does the Manta handle saltwater versus freshwater?
It works effectively in both settings. Fresh water is slightly less dense than salt water, meaning buoyancy will feel closer to neutral in lakes and rivers, while floating more noticeably on ocean surface waters.
Can I mount non-GoPro cameras on the scooter mount?
Yes. The front mount uses the standard 3-prong action camera interface. Any camera housing or light fixture using standard two-prong/three-prong thumbscrew adapters will mount directly onto the scooter frame.
Final Verdict: Is the ASIWO Manta Worth It?
The asiwo manta underwater scooter strikes a great balance for recreational divers and water lovers. It delivers meaningful pulling power down to 131 feet (40m) depth while staying light enough at 7.7 lbs to pack easily into standard airline luggage. Its 3-speed versatility lets you toggle between high-speed swimming and battery-conserving reef glides, while its positive buoyancy gives you peace of mind if you lose your grip underwater.
If you want to dive longer, burn less air, expand your exploration range on reefs, and bring home rock-steady action camera footage, the ASIWO Manta 40M is a reliable, practical choice that earns its place in your gear bag.
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