Asiwo Manta Sea Scooter Battery AC Charger: Complete Guide

The Asiwo Manta underwater scooter comes as a kit that includes the scooter body, the removable battery pack, the AC charger unit (with its cable), and accessories like a safety leash and carrying bag.

The charger is specifically designed for the Manta’s battery system.Technically, the charger accepts any standard AC input between 110–220 volts (50/60 Hz) and outputs DC 29.4 volts at 2 amps.

This matches the battery’s charging voltage (29.4 V) and current (2 A).

The charger is UL-certified for safety and uses a standard DC barrel plug that mates with the Manta battery’s charging port.

In practice, using this charger with a fully depleted 126Wh Manta battery takes about 2–3 hours, and charging a larger 252Wh pack takes roughly 4–5 hours.

• Input: AC 110–220 V, 50/60 Hz (international voltage range).

• Output: DC 29.4 V at 2 A, suitable for the Manta’s battery.

• Charging Time: ~2–3 hours for a 126Wh battery; ~4–5 hours for a 252Wh battery.

• Connector: Standard DC output plug (barrel-type) that connects to the Manta battery.

• Certification: UL-listed charger (meets safety standards).

Compatibility with Asiwo Manta Batteries

The AC charger is only compatible with the Asiwo Manta series.

Asiwo Manta scooters use an external, removable battery pack, which is charged outside the scooter using this charger.

The standard Manta model includes one 126Wh battery, the Manta S model includes two 126Wh batteries (for longer runtime), and the Manta Pro uses a single 252Wh battery.

All these battery packs share the same voltage and require the same 29.4 V/2 A charger. (For example, the Manta S package includes “2×126W Battery Pack” and one charger.)

The charger can charge each pack one at a time. In other words, if you have two batteries (Manta S), you charge them sequentially using the same charger. 

Do not attempt to use this charger with non-Manta models or other devices, as the voltage and connector may not match.

Also follow the manufacturer’s instructions: the battery is removable for charging, and you should detach it from the scooter before plugging in the charger.

Safety Guidelines and Best Practices

When using the Manta charger, follow these safety tips:

• Charge in a safe environment. Only use the charger indoors or in dry conditions. The recommended charging (ambient) temperature range is 10°C to 45°C. Do not charge outdoors in rain or very high heat.

• Let the battery cool first. After swimming, the battery may warm up. Always allow the battery to cool to room temperature before charging. Charging a hot battery can be unsafe.

• Keep everything dry. Rinse the scooter and battery pack with fresh water after use (to remove salt or chlorine) and dry them thoroughly. Never plug in the charger if any part (battery contacts or charger) is wet. Moisture can cause short circuits or corrosion.

• Use only the authorized charger. The Asiwo charger has built-in protections (over-current, over-voltage, etc.) and is UL-certified. Using a generic or damaged charger can be dangerous. Inspect the charger cable for damage before use.

• Monitor charging. Do not leave charging equipment completely unattended for long periods. Once the battery is fully charged (or if the charger indicates a problem), unplug it.

The charger itself has a status LED indicator.

Under normal conditions, a steady red light shows the charger is operating. (Note: Asiwo tech support notes that an unexpected green light on the charger may indicate a fault, so you should unplug and inspect it if that happens.)

The scooter also has its own battery-level LEDs on the handle that show when the pack is full or low.

Recommended: How to Extend Electric Sea Scooter Battery Life: Easy Tips That Work

Maintenance Tips for Charger and Battery

Proper care will extend the life of your Manta charger and battery pack:

• After each use: Rinse off the scooter and battery with fresh water to prevent salt or chlorine damage. Make sure the battery contacts and charger port are clean and dry before connecting.

• Recharge and store: Asiwo recommends fully charging the battery after use and then storing the battery separately. For best battery health, charge it at least once every two months if you’re not using it regularly.

• Clean contacts if needed: If you see white/green corrosion on the battery contacts, clean them as instructed (for example, gently wiping with a vinegar-salt solution then drying). Good contact keeps charging efficient.

• Handle the charger gently: Coil the cable loosely, avoid kinking or pulling on it, and store the charger in a cool, dry place when not in use. Protect it from impacts or liquids.

• Battery care: Don’t store the battery fully depleted. A partly charged battery is healthier long-term. Also avoid exposing it to extreme cold or heat.

By following these tips and the user manual guidelines, you’ll help ensure many safe charging cycles for your Manta scooter.

Certifications and Manufacturer’s Instructions

Asiwo’s Manta charger is UL-certified, meaning it meets recognized safety standards for battery chargers. (The Manta scooter itself carries a CE certificate for European safety compliance.)

Always follow Asiwo’s official instructions: use the included AC charger and cable (no substitutes), and do not open or disassemble the charger or battery pack.

The user manual that comes with the scooter gives detailed charging procedures and warnings.

For example, it explicitly warns against any water entering the battery interface.

In summary, stick to the manufacturer’s guidelines—use the supplied charger, plug it into a proper outlet, and charge the removable battery pack as directed.

Conclusion

The Asiwo Manta AC battery charger is a key part of the Manta sea scooter system.

It’s built to the exact specs of the Manta’s battery pack: 110–220 V input and 29.4 V/2 A output.

When used correctly, it will safely bring the battery to full charge in a few hours. Always charge in the proper environment, keep the equipment clean and dry, and follow Asiwo’s instructions.

By doing so, you’ll enjoy optimal performance and longevity from both the charger and the scooter’s battery.

FAQs

Q: How long does it take to fully charge my Manta scooter’s battery?

Typically about 2–3 hours for the standard 126Wh battery, and about 4–5 hours for the larger 252Wh battery. Actual time can vary slightly based on battery level and temperature.

Q: Can I use this charger anywhere in the world?

Yes. The charger accepts 110–220 V AC (50/60 Hz), so it works on common North American and international power grids. You may need a plug adapter for different outlet shapes (US, EU, UK, etc.), but no voltage converter is needed.

Q: If I have the Manta S (with 2 batteries), can I charge both at once?

The standard charger charges one battery pack at a time. With two batteries, you should charge them one after the other using the same charger. Asiwo also offers a separate “2-in-1” dual charger (sold separately) if you want to charge two packs simultaneously, but with the standard charger, just swap the packs after the first is done.

Q: What do the charger’s indicator lights mean?

The charger has an LED light to show status. In normal use, the light stays red, which indicates charging is happening. According to Asiwo support, if the charger’s LED turns green instead, that signals a problem with the charger. In short, when charging it should glow red; if you ever see a green light on the charger, unplug it and check everything.

Q: How can I extend the life of my Manta charger and battery?

Store and maintain them properly. Always rinse and dry the scooter and battery after use. Charge the battery fully after outings, and recharge it every couple of months if storing. Keep the charger and battery in a cool, dry place. Avoid letting the battery sit fully discharged. By following the manual’s care tips (like cleaning corrosion and avoiding extreme temperatures), you’ll help the battery and charger last longer.