---
product_id: 368023282
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: "€ 87.61"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/368023282-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v
store_origin: HR
region: Croatia
---

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

**Brand:** readytosky
**Price:** € 87.61
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Flight Experience!

## 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?** € 87.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/368023282-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

- • **Ready for Action:** Ideal for F450, S500, and ZD550 models—take your flight to new heights!
- • **Smart & Adaptive:** Intelligent design ensures seamless operation and ease of use.
- • **Unleash the Power:** Experience a robust 40A performance for your RC adventures.
- • **Reliable BEC Output:** 5V/3A BEC output guarantees stable power for your devices.
- • **Versatile Compatibility:** Designed for 2-4S battery cells, perfect for various models.

## Overview

The Readytosky 2-4S 40A Brushless ESC is a high-performance electronic speed controller designed for RC helicopters and quadcopters. With a BEC output of 5V/3A and compatibility with 2-4S battery cells, this ESC offers intelligent and adaptive functionality, making it an essential component for enthusiasts looking to enhance their aerial experience.

## Description

Readytosky 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.

## 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)

## 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

### ⭐⭐⭐⭐⭐ As advertised
*by H***K on February 22, 2025*

As advertised

### ⭐ Don't use on anything expensive
*by T***R on January 23, 2025*

Took the drone off and after about 30 seconds in the air the esc exploded causing it to crash to the ground snapping the frame.

## 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.hr/products/368023282-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v](https://www.desertcart.hr/products/368023282-readytosky-2-4s-40a-brushless-esc-electronic-speed-controller-5v)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-20*