Drone Speed Controller

The 30A 2-6S ESC with 3.5mm Banana Connector is designed to provide reliable and efficient power control for RC helicopters and quadcopters. It supports battery configurations from 2 to 6 cells, ensuring versatile compatibility with popular drone models like F450, S500, and ZD550. Equipped with a high-quality MOSFET chip and operating at a 621Hz throttle frequency, this ESC optimizes motor responsiveness and overall flight stability for demanding aerial applications.

• Wide voltage range compatibility supports 2 to 6 cell LiPo batteries for flexible usage.
• 3.5mm banana connector ensures secure and efficient electrical connections.
• Optimized firmware enhances throttle control precision and smooth motor response.
• High-performance MOSFET chip delivers efficient power management and heat dissipation.
• 621Hz throttle frequency improves motor reaction time for stable and responsive flights.
• Compatible with F450, S500, and ZD550 drone frames, making it ideal for various multirotor builds.

Readytosky 30A 2–6S Brushless ESC for RC Drone & Quadcopter – High Stability OPTO ESC

Power Your Drone with Precision & Reliability

Upgrade your drone performance with the Readytosky 30A Brushless ESC, now available on PartsBaba. Designed for smooth and responsive control, this high-performance Electronic Speed Controller is ideal for RC drones, quadcopters, and helicopters like F450, S500, and ZD550 frames.

Built with advanced firmware and a high-quality MOSFET driver chip, this ESC ensures stable operation, fast throttle response, and enhanced flight efficiency—even in demanding conditions.

Key Features

• High Compatibility Firmware
  Optimized firmware supports a wide range of RC drones and flight controllers for seamless integration.
• Fast Throttle Response (Up to 621Hz)
  Delivers ultra-smooth and precise control, improving overall flight performance.
• Advanced MOSFET Driver Chip
  Enhances stability, efficiency, and durability compared to standard ESCs.
• Improved Signal Integrity
  Twisted pair throttle signal cable minimizes interference and ensures accurate signal transmission.
• OPTO ESC Design (No BEC)
  Lightweight and energy-efficient design, ideal for high-performance drone builds.

Technical Specifications

• Brand: Readytosky
• Continuous Current: 30A
• Maximum Current: 40A
• Battery Support: 2–6S Li-Po
• Weight: 30g
• BEC Output: No (OPTO ESC)

Why Buy from PartsBaba?

At PartsBaba, we provide 100% genuine and tested electronic components to ensure reliability and performance. This product comes with a 14-day replacement warranty against manufacturing defects, giving you peace of mind with every purchase.

Perfect For

• RC Drone Builds
• Quadcopter Projects (F450, S500, ZD550)
• DIY Drone Enthusiasts
• Professional & Hobby Pilots

The Bidirectional Adjustable ESC 20A 2-4s with a built-in 2A 5V UBEC is engineered for precision control of remote control vehicles across diverse environments. This ESC supports brushless motors and accommodates 2 to 4 cell LiPo batteries, making it versatile for RC cars, boats, and underwater propeller systems. Its bidirectional capability ensures smooth forward and reverse operation, delivering responsive performance for pneumatic underwater applications and surface navigation alike.

• 20A continuous current rating provides reliable power management for various RC projects.
• Integrated 2A 5V UBEC guarantees stable voltage supply for onboard electronics without extra components.
• Compatible with 2-4s LiPo battery packs, offering flexible setup options for different power needs.
• Designed for bidirectional motor control, enabling precise forward and reverse movement.
• Ideal for use in remote control cars, boats, and underwater propellers, supporting multi-environment applications.
• Smooth response and adjustable settings make it suitable for ROVs and pneumatic underwater propulsion systems.
• Compact design integrates easily into drone and other RC parts setups.

Unleash exceptional performance in your multicopter with the Readytosky Simonk 30A ESC. Experience unmatched efficiency, rock-solid stability, and ultra-responsive control for unforgettable flights. 

The Emax BLHeli_S Bullet D-SHOT 15A ESC is the perfect lightweight powerhouse for FPV racing drones. It offers smooth throttle response, supports DSHOT, Oneshot42, and Multishot, and ensures efficient heat dissipation. 

Emax D-SHOT Bullet 15A ESC – Ultra-Light BLHeli-S Speed Controller for FPV Racing

Upgrade your FPV drone performance with the D-SHOT Bullet 15A ESC. Built for speed, precision, and reliability, this compact electronic speed controller is designed to deliver smooth power control and consistent performance for racing and freestyle applications.

Key Features & Benefits

Ultra-Light & Compact Design

Weighing approximately 3.5g, this ESC helps reduce overall drone weight, improving agility, flight efficiency, and responsiveness during high-speed maneuvers.

BLHeli-S Firmware Performance

Powered by BLHeli-S (v16.5), it offers smooth throttle response, reduced electrical noise, and enhanced motor control for precise flying.

Multi-Signal Compatibility

Supports a wide range of input signals, including:

• DSHOT (digital)
• MULTISHOT
• ONESHOT42
• ONESHOT125

Ensuring compatibility with modern flight controllers and various FPV setups.

High-Quality Components

Built with premium MOSFETs and ceramic capacitors, delivering efficient power handling, improved durability, and stable operation under load.

Advanced Heat Management

Features a 3oz high TG PCB along with an aluminum heat sink to efficiently dissipate heat and maintain performance during demanding flights.

Added Protection Design

The integrated heat sink structure also helps protect the ESC from potential propeller impacts, increasing durability in crash-prone environments.

Flexible Installation

Comes with high-temperature silicone signal wires for easy routing and secure installation in compact builds.

Ideal For

• FPV Racing Drones
• Freestyle Drone Builds
• Lightweight High-Performance Setups

Package Includes

• 1 × D-SHOT Bullet 15A ESC

The EMAX BLHeli_S Bullet 35A ESC is the lightest and smallest ESC on the market, designed for high-level FPV racing. It features the latest BLHeli-S firmware, supports MULTISHOT, ONESHOT42, and ONESHOT125.

BLHeli_S Bullet 35A ESC – High-Speed FPV Racing Electronic Speed Controller

Take your FPV racing setup to the next level with the Bullet 35A ESC powered by BLHeli_S firmware. Designed for speed, precision, and durability, this ESC is built to handle the intense demands of modern racing and freestyle drones.

Key Features & Benefits

Ultra-Light & Compact Design

With a lightweight build of approximately 6.3g, this ESC helps reduce overall drone weight, improving agility, responsiveness, and flight efficiency.

Advanced BLHeli_S Firmware

Running on BLHeli_S (v16.5), it utilizes hardware-based PWM for smoother throttle response, reduced noise, and enhanced control accuracy during high-speed maneuvers.

Multi-Protocol Signal Support

Compatible with multiple signal types including:

• MULTISHOT
• ONESHOT42
• ONESHOT125

This ensures seamless integration with a wide range of flight controllers and FPV setups.

Efficient Heat Dissipation

Built with a 3oz high TG PCB and an upgraded aluminum heat sink, the ESC effectively manages heat and provides added protection against damage, even under heavy load conditions.

Premium Internal Components

Equipped with high-quality MOSFETs and ceramic capacitors, the ESC delivers stable power output while minimizing heat buildup and improving overall efficiency.

Flexible & Durable Wiring

Includes high-temperature silicone signal wires for better flexibility, durability, and easier installation in compact drone frames.

Ideal For

• FPV Racing Drones
• Freestyle Drone Builds
• High-Performance Multirotor Setups

Package Includes

• 1 × BLHeli_S Bullet 35A ESC

The BLHeli 30A ESC is a versatile electronic speed controller designed for multirotors, fixed-wing aircraft, and helicopters. It offers smooth throttle response, multiple protection features, and programmable settings for optimal performance.

BLHeli 30A ESC (ONESHOT) – High-Performance Electronic Speed Controller for RC Aircraft

Boost the performance of your RC aircraft with the BLHeli 30A ESC featuring ONESHOT support. Built for precision control and dependable operation, this speed controller is ideal for multirotors, airplanes, and helicopters requiring smooth and responsive power delivery.

Key Features & Benefits

Efficient & Reliable Power Handling

Constructed using high-quality components, this ESC is designed to handle demanding current loads while maintaining stable and efficient performance during flight.

Optimized BLHeli Firmware

Preloaded with BLHeli firmware, it delivers smooth throttle response, fast signal processing, and improved motor control for better flight stability and responsiveness.

ONESHOT Signal Support

Supports ONESHOT protocol for faster communication between flight controller and ESC, resulting in reduced latency and more precise throttle control—especially useful for racing and freestyle drones.

Versatile Compatibility

Suitable for multirotor drones, fixed-wing aircraft, and RC helicopters, making it a flexible choice for various aerial setups.

Adjustable Motor Direction

Easily configure motor rotation (clockwise, counterclockwise, or bidirectional) to match your build requirements without complex modifications.

Advanced Safety Features

Includes multiple protection mechanisms such as:

• Low voltage cutoff
• Overheat protection
• Signal loss alert

Customizable Settings

Supports programming via transmitter or program card, allowing you to fine-tune performance based on your specific flying style.

Ideal For

• FPV Racing Drones
• Freestyle Drone Builds
• RC Airplanes & Helicopters

Package Includes

• 1 × BLHeli 30A ESC (ONESHOT)