ReadytoSky 40A 2–4S ESC Electronic Speed Controller for Drone Brushless Motors with BLHeli Firmware

The ReadytoSky 40A 2–4S ESC is a high-performance electronic speed controller designed for multi-rotor drones and FPV racing applications. Built with reliable MOSFET components and advanced BLHeli firmware, it delivers fast throttle response, smooth power delivery, and excellent efficiency across 2S to 4S LiPo battery configurations. This ESC is engineered for durability and stable performance under demanding flight conditions, ensuring consistent motor control even during rapid throttle changes. With its compact and lightweight design, it fits perfectly in FPV racing frames and DIY drone builds. The ReadytoSky 40A ESC features low-resistance wiring, built-in protection against overcurrent and overheating, and easy signal calibration for quick setup. Ideal for drone enthusiasts, FPV pilots, and hobbyists, it provides superior reliability, precision, and performance at an affordable price.

Key Features:

• Supports 2–4S LiPo batteries for a wide range of drone applications.
• Pre-installed BLHeli firmware ensures fast response and stable flight control.
• High-efficiency MOSFET design reduces heat and improves reliability.
• Compatible with various brushless motors and flight controllers.
• Compact, lightweight build ideal for FPV racing and custom drone builds.
• Built-in overcurrent and thermal protection for enhanced safety.

Additional Specification:

• Continuous Current - 40A
• Battery Input - 2–4S LiPo (7.4V–16.8V)
• BEC Output - 5V / 2A (Linear)
• Firmware - BLHeli
• Connector Type - Solder Pads