For users who enjoy kayaking, fishing, paddleboarding, or small boat activities, adding a reliable electric propulsion system can reduce physical effort during long trips while extending travel distance and improving the overall experience.

The APISQUEEN U92 Pro underwater thruster is a high-performance electric propulsion system designed for water sports applications. It features a sand and silt-resistant design and is suitable for use in freshwater and saltwater environments. It can be installed on kayaks, inflatable boats, paddleboards, and other small watercraft.

The U92 Pro is available in 12V and 24V versions. A single thruster provides approximately 10kg of thrust with a maximum power output of around 450W. Users can choose the appropriate configuration based on their boat type, runtime requirements, and power needs.

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Features of the U92 Pro Underwater Thruster

Sand and Silt Resistant Design

Many traditional underwater thrusters can be affected by sand, mud, and debris when used in rivers, lakes, or fishing environments.

The U92 Pro is designed for water applications with improved protection against sand and silt intrusion, making it suitable for:

• Lakes

• Rivers

• Saltwater environments

• Fishing applications

When used in seawater, it is recommended to rinse the thruster with fresh water after each use to reduce the impact of salt residue and extend product lifespan.

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High-Efficiency Brushless Motor

The U92 Pro uses a brushless motor design that provides:

• Higher operating efficiency

• Lower maintenance requirements

• Longer service life

• More stable power output

The brushless motor delivers smooth and consistent power, making it suitable for long-duration water activities.

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12V / 24V Version Options

The U92 Pro is available in different voltage versions.

12V Version

Suitable for:

• Small kayaks

• SUP boards

• Lightweight watercraft

Recommended battery:

• 12V lithium battery

• 12V LiFePO4 battery

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24V Version

Suitable for:

• Larger kayaks

• Inflatable boats

• Users who require higher power or longer runtime

Recommended battery:

• 24V lithium battery

• 24V LiFePO4 battery

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How to Configure and Use the U92 Pro

The U92 Pro is available in two configurations:

• Version with built-in ESC

• Version without ESC

Each version is designed for different user requirements.

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Version 1: U92 Pro with Built-in ESC

If you choose the built-in ESC version, the electronic speed controller is already integrated inside the thruster.

This version is easier to install and does not require an additional ESC.

Connection:

U92 Pro Thruster → Remote Receiver → Battery

The system can be used directly after connection.

Required components:

• U92 Pro thruster with built-in ESC

• Battery with matching voltage

• Remote controller

After connecting the components, users can control the thruster speed through the remote controller.

Suitable for:

• Kayak modifications

• Electric SUP upgrades

• Fishing applications

• Users who want a simple installation process

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Version 2: U92 Pro Without ESC

If you choose the version without ESC, the thruster does not include a controller and requires an additional ESC.

Recommended ESC:

Hobbywing 8S 80A Bidirectional ESC

Connection:

U92 Pro Thruster → Hobbywing 8S 80A ESC → Remote Receiver → Battery

After connecting the components, the thruster can be controlled normally.

This configuration is suitable for:

• DIY projects

• Underwater robots

• Unmanned boat projects

• Users who want to build their own control system

Advantages:

• More flexible ESC selection

• Compatible with different remote control systems

• Suitable for custom development

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Difference Between ESC with BEC and ESC Without BEC

When selecting an external ESC, users should pay attention to whether the ESC includes a BEC (Battery Eliminator Circuit) function.

The BEC provides stable power to the remote receiver by converting battery voltage into the voltage required by the control system.

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ESC with BEC

If the ESC includes a BEC function:

Connection:

U92 Pro Thruster → ESC (with BEC) → Remote Receiver → Battery

No additional power module is required.

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ESC Without BEC

If the ESC does not include a BEC function, an additional BEC power module is required.

Connection:

Power system:

U92 Pro Thruster → ESC → Battery

Control system:

Battery → BEC Power Module → Remote Receiver

The BEC converts the battery voltage to a suitable voltage for the receiver, allowing the remote control system to operate properly.

Without a BEC, the receiver may not receive power and the remote control system will not function correctly.

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How to Choose a Battery for U92 Pro

The battery should be selected according to the voltage version of the U92 Pro.

Recommended Battery Types

Recommended options:

• LiFePO4 battery

• Lithium-ion battery

LiFePO4 batteries are widely recommended because they offer:

• High safety

• Long cycle life

• Good suitability for outdoor applications

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Recommended Battery for 12V U92 Pro

Recommended:

• 12V 50Ah LiFePO4 battery

• 12V 100Ah LiFePO4 battery

Suitable for:

• Short-distance cruising

• Recreational use

• Small kayaks

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Recommended Battery for 24V U92 Pro

Recommended:

• 24V 50Ah LiFePO4 battery

• 24V 100Ah LiFePO4 battery

A larger battery capacity provides longer theoretical runtime.

Actual runtime depends on:

• Boat weight

• Speed

• Water conditions

• Throttle level

• Operating environment

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Single Thruster or Dual Thruster System?

The U92 Pro can be used as a single thruster system or configured as a dual thruster system.

Single Thruster System

Advantages:

• Simple installation

• Lower cost

• Suitable for normal cruising

Applications:

• Kayaks

• SUP boards

• Small inflatable boats

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Dual Thruster System

A dual thruster setup provides:

• Better stability

• More flexible steering control

• Improved maneuverability

It is especially suitable for:

• Fishing kayaks

• Larger inflatable boats

• Users who require precise directional control

The APISQUEEN U92 Pro dual thruster kit includes matched thrusters, control system, and remote equipment. Users only need to connect a suitable battery to start using the system without additional ESC selection or complicated setup.

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Applications of U92 Pro

Electric Kayak Upgrade

For users who enjoy long-distance paddling or fishing trips, the U92 Pro reduces physical effort and extends cruising range.

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Fishing Boat Propulsion

With stable power output, the U92 Pro is suitable for:

• Slow-speed cruising

• Searching for fishing spots

• Long-duration water activities

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Electric SUP Conversion

With its compact size and flexible installation options, the U92 Pro is an ideal solution for adding electric propulsion to SUP boards.

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U92 Pro Configuration Summary

Simple Installation Solution

Choose:

**U92 Pro with Built-in ESC

• Remote Controller

• Matching Voltage Battery**

Connect the components and start using.

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DIY Solution

Choose:

**U92 Pro Without ESC

• Hobbywing 8S 80A Bidirectional ESC

• Remote Controller

• Matching Voltage Battery**

If the ESC does not include a BEC function, an additional BEC power module is required to provide power for the remote receiver.

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With different versions and accessory combinations, the U92 Pro can meet various requirements from recreational water activities to DIY unmanned boat projects, providing a flexible and reliable underwater propulsion solution.