---
product_id: 374510921
title: "Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS)"
brand: "readytosky"
price: "€ 152.47"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/374510921-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v
store_origin: SK
region: Slovakia
---

# 40A high current capacity 2-4S LiPo battery compatibility 5V/3A BEC power output Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS)

**Brand:** readytosky
**Price:** € 152.47
**Availability:** ✅ In Stock

## Summary

> 🚁 Elevate your drone game with power and precision!

## Quick Answers

- **What is this?** Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS) by readytosky
- **How much does it cost?** € 152.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/374510921-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v)

## Best For

- readytosky enthusiasts

## Why This Product

- Trusted readytosky brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Power Supply:** Integrated 5V/3A BEC ensures stable voltage for your RC electronics.
- • **Plug & Play Simplicity:** Highly intelligent and adaptive design makes setup effortless for pros and enthusiasts alike.
- • **Power-Packed Performance:** Delivers a robust 40A current for smooth, high-speed control.
- • **Versatile Battery Support:** Compatible with 2-4S LiPo batteries to maximize flight time and power.
- • **Optimized for Popular Models:** Perfectly tailored for F450, 450mm S500, and ZD550 quadcopters and helicopters.

## Overview

The Readytosky 2-4S 40A Brushless ESC is a high-performance electronic speed controller designed for 2-4S LiPo batteries, delivering 40A continuous current and a stable 5V/3A BEC output. Engineered for popular RC models like the F450 and S500, it offers intelligent adaptive control for seamless flight experience, making it a must-have upgrade for serious drone pilots.

## Description

2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS)

## Features

- ★40A 2-4S Brushless ESC,BEC output: 5V 3A .
- ★The applicable number of battery cells :2-4S.
- ★Use for F450 450mm S500 ZD550 RC Helicopter Quadcopter.
- ★Highly intelligent, adaptive ability, extremely easy to use.
- ★★★Note: This ESC is not able to flash the firmware.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 11.6 x 10.6 x 3.5 cm; 154 g |
| Manufacturer recommended age | 18 years and up |
| Item model number | M15-4 |
| Assembly Required | Yes |
| Batteries Required? | Yes |
| Batteries Included? | No |
| tech_spec_battery_description_toys | Lithium-Ion Polymer |
| Material Type(s) | Plastic |
| Color | multi |
| ASIN | B09G5S9YYG |

## Images

![Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS) - Image 1](https://m.media-amazon.com/images/I/91qWZqcI0yL.jpg)

## Frequently Bought Together

- Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS)
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**Shop now:** [https://www.desertcart.sk/products/374510921-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v](https://www.desertcart.sk/products/374510921-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-20*