---
product_id: 368023282
title: "2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC"
brand: "readytosky"
price: "€ 83.89"
currency: EUR
in_stock: true
reviews_count: 8
category: "Readytosky"
url: https://www.desertcart.at/products/368023282-2-4s-40a-brushless-esc-electronic-speed-controller-5v-3a
store_origin: AT
region: Austria
---

# 40A high current capacity 2-4S LiPo battery compatibility 5V/3A BEC output for stable power 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC

**Brand:** readytosky
**Price:** € 83.89
**Availability:** ✅ In Stock

## Summary

> 🚁 Elevate your drone game with power and precision!

## Quick Answers

- **What is this?** 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC by readytosky
- **How much does it cost?** € 83.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/368023282-2-4s-40a-brushless-esc-electronic-speed-controller-5v-3a)

## 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

- • **Plug-and-Play Simplicity:** Highly intelligent ESC with adaptive ease-of-use—get flying faster
- • **Reliable 5V/3A BEC Output:** Ensures stable power supply to your onboard electronics
- • **Quad Pack for Complete Builds:** Includes 4 ESCs, perfect for F450, S500, ZD550 quadcopters
- • **Seamless 2-4S Battery Support:** Versatile compatibility with popular LiPo packs
- • **Power Your Flight with 40A Precision:** Robust current handling for smooth, responsive control

## Overview

The Readytosky 2-4S 40A Brushless ESC is a high-performance electronic speed controller designed for 2-4S LiPo batteries, delivering up to 40 amps of current and a stable 5V/3A BEC output. Ideal for popular quadcopters like the F450 and S500, this intelligent ESC offers adaptive control and comes in a convenient 4-pack, making it the go-to choice for serious RC pilots seeking reliable, plug-and-play power management.

## Description

Buy Readytosky 2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC | For F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS): Electric Speed Controllers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Very good quality - These readdytosky esc are just perfect for a drone with a 14 to 16 inch blade. There light weight for a 40a esc and work really well with high current motor you can have them give a boost amprig of 50a for to attest 10 second which is relly helpful when you have to going full throttle before you crash with out blowing of your esc. but what I really like Is the 2 capacitor that (look great quality also) they give a very stable current to power your othe drone parts like flightcontroller becouse it so stable you shouldn't have any problems with the sensor on the drone. there definitely a great price for the quality
Review: High quality esc's - If I knew how easy it is to assemble my own quad, I would have started ages ago. These high quality esc's can't be beat. Just plug and go! Stay in the sky longer with these reliable esc's

## 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 |
|---------------|-------|
| ASIN | B09G5S9YYG |
| Additional Features | Portable |
| Age Range Description | Baby |
| Battery Description | Lithium-Ion Polymer |
| Best Sellers Rank | #293,099 in Toys & Games ( See Top 100 in Toys & Games ) #360 in Radio Control Vehicle Speed Controls |
| Brand Name | Readytosky |
| Color | Black |
| Customer Reviews | 3.9 out of 5 stars 60 Reviews |
| Included Components | [4 x 40A ESCs] |
| Item Highlight | For F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS) |
| Manufacturer | Readytosky |
| Manufacturer Part Number | M15-4 |
| Manufacturer recommended age | 0 - 1 years |
| Material Type | Plastic |
| Model Name | M15-4 |
| Model Number | M15-4 |
| Number of Items | 4 |
| Number of Packs | 4 |
| Operation Mode | manual |
| Power Source | Battery Powered |
| Set Name | 4pcs*40A ESC |
| Size | 7.2cm x 2.4cm |
| Theme | helicopter |
| Toy Vehicle Form | Helicopter |

## Images

![2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC - Image 1](https://m.media-amazon.com/images/I/91qWZqcI0yL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good quality
*by G***I on February 16, 2023*

These readdytosky esc are just perfect for a drone with a 14 to 16 inch blade. There light weight for a 40a esc and work really well with high current motor you can have them give a boost amprig of 50a for to attest 10 second which is relly helpful when you have to going full throttle before you crash with out blowing of your esc. but what I really like Is the 2 capacitor that (look great quality also) they give a very stable current to power your othe drone parts like flightcontroller becouse it so stable you shouldn't have any problems with the sensor on the drone. there definitely a great price for the quality

### ⭐⭐⭐⭐⭐ High quality esc's
*by G***) on December 27, 2021*

If I knew how easy it is to assemble my own quad, I would have started ages ago. These high quality esc's can't be beat. Just plug and go! Stay in the sky longer with these reliable esc's

### ⭐ 100% DO NOT BUY
*by M***B on June 12, 2024*

Within minutes of testing one of these ESCs caught on fire and burned out a leg on my motor. Worse than junk, they are flat out dangerous.

## 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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- Readytosky 6Pairs 1045 Propellers CW CCW 10x4.5" FPV Props for F550 F450 S500 S550 FPV Quadcopter Multirotor

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**Shop now:** [https://www.desertcart.at/products/368023282-2-4s-40a-brushless-esc-electronic-speed-controller-5v-3a](https://www.desertcart.at/products/368023282-2-4s-40a-brushless-esc-electronic-speed-controller-5v-3a)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-10-19*