---
product_id: 546942384
title: "Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller"
price: "R1818"
currency: ZAR
in_stock: true
reviews_count: 4
url: https://www.desertcart.co.za/products/546942384-readytosky-40a-esc-opto-2-6s-brushless-esc-electronic-speed
store_origin: ZA
region: South Africa
---

# 40A continuous current power 2-6S LiPo battery compatibility Optimized adaptive firmware Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller

**Price:** R1818
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your drone game with power and precision!

## Quick Answers

- **What is this?** Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller
- **How much does it cost?** R1818 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/546942384-readytosky-40a-esc-opto-2-6s-brushless-esc-electronic-speed)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wide Voltage Range:** Supports 2-6S LiPo batteries, giving you versatile power options.
- • **Lightweight & Compact:** At just 33.2g, it keeps your build agile without sacrificing durability.
- • **Effortless Integration:** Plug-and-play design tailored for F450, F550, S500, and ZD550 models.
- • **Power-Packed Performance:** Delivers a robust 40A continuous current for high-thrust multicopters.
- • **Smart & Adaptive Firmware:** Specifically optimized for seamless compatibility with popular drone frames.

## Overview

The Readytosky 40A OPTO Brushless ESC is a lightweight, high-current electronic speed controller designed for 2-6S LiPo batteries. Featuring optimized firmware for top compatibility with popular multicopter frames like F450 and F550, it ensures reliable, adaptive performance for professional-grade drone builds.

## Description

desertcart.com: Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller | For F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter(4PCS) : Toys & Games

Review: Great value, top quality! - Great product! I put them to use in a heavy lift drone and they have exceeded my expectations! Stay cool, easy to use, and can handle the power needed for my multicopter easily! Will buy more soon!
Review: Good value - This is a solid ESC. No BEC and not sure if the firmware can be changed or updated but it's a good performing reliable ESC

## Features

- 40A OPTO 2-6S Brushless electronic speed controller.
- Highly intelligent, adaptive ability, extremely easy to use
- Continuous Current: 40A Weight: 33.2g
- Specifically optimized firmware ESC, the ESC has a very good compatibility
- For F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #203,715 in Toys & Games ( See Top 100 in Toys & Games ) #188 in Radio Control Vehicle Speed Controls |
| Customer Reviews | 3.8 out of 5 stars 8 Reviews |

## Images

![Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller - Image 1](https://m.media-amazon.com/images/I/811apaZSCDL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value, top quality!
*by C***M on April 21, 2026*

Great product! I put them to use in a heavy lift drone and they have exceeded my expectations! Stay cool, easy to use, and can handle the power needed for my multicopter easily! Will buy more soon!

### ⭐⭐⭐⭐⭐ Good value
*by D***. on April 25, 2025*

This is a solid ESC. No BEC and not sure if the firmware can be changed or updated but it's a good performing reliable ESC

### ⭐⭐ Did not work for my setup.
*by K***Y on July 23, 2026*

Did not work with 6s battery, 320kv motors, and orange cube+ flight controller.

## Frequently Bought Together

- Readytosky 40A ESC OPTO 2-6S Brushless ESC Electronic Speed Controller for F450 450mm F550 S500 ZD550 RC Helicopter Quadcopter(4PCS)
- Readytosky 2212 920KV Brushless Motors CW CCW for F330 F450 F550 S500 S550 X525 DJI Phantom Quadcopter(4PCS)
- 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.co.za/products/546942384-readytosky-40a-esc-opto-2-6s-brushless-esc-electronic-speed](https://www.desertcart.co.za/products/546942384-readytosky-40a-esc-opto-2-6s-brushless-esc-electronic-speed)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-08*