Bidirectional Brushless ESC 30A 40A 2-4S BEC for RC Boat

$19.06 $23.14

Bidirectional Brushless ESC 30A / 40A — HV BEC for RC Boats & Underwater Thrusters

Take your RC build to the next level with this high-voltage bidirectional brushless ESC. Available in 30A and 40A variants, it delivers smooth 1:1 bidirectional power output with instant forward and reverse response — no brake, no calibration needed. Simply plug it in and go. Built with imported components and full-power tested, this ESC is purpose-built for RC boats, underwater thrusters, and RC cars that demand reliable, responsive motor control.

Made in Mainland China.

Key Features

True Bidirectional Control: 1:1 power output in both directions — direct reverse with quick throttle response and excellent handling.
Plug & Play: No throttle stroke calibration required — connect and start running immediately.
Wide Voltage Range: Compatible with 2S–4S LiPo battery packs for flexible use across multiple RC platforms.
Integrated BEC Output: Built-in 5V/2A BEC powers your receiver and servos directly.
Durable Construction: Plastic and metal housing using high-quality imported components, fully power tested before shipping.
Versatile Application: Suitable for RC boats, underwater thrusters, RC cars, and more.
Recommended Age: 14 years and above.

Specifications

30A Brushless ESC

Continuous Current: 30A
Burst Current (10S): 35A
LiPo Battery: 2S–4S
BEC Output: 5V / 2A
Dimensions: 72 × 27 × 10 mm

40A Brushless ESC

Continuous Current: 40A
Burst Current (10S): 50A
LiPo Battery: 2S–4S
BEC Output: 5V / 2A
Dimensions: 72 × 31 × 10.5 mm

Package Contents: 1 × Brushless ESC (30A or 40A, as selected)

Note: Battery not included. Color may vary slightly due to monitor brightness. Allow slight deviation for manual measurements.

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Frequently Asked Questions

Q: Is the brushless ESC compatible with both RC boats and underwater thrusters?

A: Yes! This bidirectional brushless ESC is designed for use in RC boats, underwater thrusters, and RC cars. Its true bidirectional 1:1 power output and quick reverse response make it ideal for any RC application requiring forward and reverse motor control.

Q: Do I need to calibrate the ESC before use?

A: No calibration is required. This ESC is plug-and-play — simply connect it to your motor, receiver, and LiPo battery pack (2S–4S) and you're ready to run right away.

Q: What is the difference between the 30A and 40A versions?

A: The 30A version supports a continuous current of 30A with a 10-second burst of 35A and measures 72 × 27 × 10 mm. The 40A version handles a continuous current of 40A with a 10-second burst of 50A and is slightly larger at 72 × 31 × 10.5 mm. Both feature the same 2S–4S LiPo compatibility and 5V/2A BEC output. Choose based on the power demands of your motor and RC build.