---
product_id: 281263580
title: "QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203"
brand: "qwinout"
price: "€ 140.54"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/281263580-qwinout2-4s-30a-rc-brushless-esc-simonk-firmware-electric-speed
store_origin: NL
region: Netherlands
---

# 30A Power Compact Design 5V 3A BEC QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203

**Brand:** qwinout
**Price:** € 140.54
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Flight Experience!

## Quick Answers

- **What is this?** QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 by qwinout
- **How much does it cost?** € 140.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/281263580-qwinout2-4s-30a-rc-brushless-esc-simonk-firmware-electric-speed)

## Best For

- qwinout enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight & Compact:** Designed for easy installation without compromising performance.
- • **Noise-Free Performance:** Military-grade capacitors ensure a smooth, interference-free flight.
- • **Plug-and-Play Simplicity:** No programming needed! Just install and soar.
- • **Robust Anti-Jamming Tech:** Advanced microprocessor with dedicated voltage regulation for reliable operation.
- • **Unleash Your Flight Potential:** Experience unmatched control with our 30A brushless ESC, designed for 2-4S Lipo batteries.

## Overview

The QWinOut2-4S 30A RC Brushless ESC is a high-performance electric speed controller designed for DIY multicopters and quadcopters. With a working current of 30A and a built-in 5V 3A BEC, this ESC is perfect for 2 to 4S Lipo batteries. Its compact and lightweight design ensures easy installation, while military-standard capacitors and advanced anti-jamming technology provide exceptional reliability and performance.

## Description

QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203

## Features

- NOTE: We have set up the program, the ESC do not need additional program
- Input voltage:2-4 S; BEC: 5V 3A; Working current: 30A
- Universal SimonK Firmware 30A ESC Brushless Speed Controller,super simple. Small size combined with light weight for easy installation.
- Military standard capacitor of extreme low resistance increases the ability of prevention of unwanted RF noise during flying. Extreme low resistance PCB is helpful for getting a super current endurance capability.
- Microprocessor uses separate voltage regulator IC, with good anti-jamming capability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 15.8 x 11.6 x 3.3 cm; 114 g |
| Manufacturer recommended age | 14 months and up |
| Manufacturer reference | M18203-4 |
| Educational Objective(s) | play |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries Included? | No |
| Material Type(s) | Plastic |
| Remote Control Included? | Yes |
| number_of_channels | 4 |
| Color | 4 Pcs |
| ASIN | B07SFLJJQ5 |

## Images

![QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 - Image 1](https://m.media-amazon.com/images/I/61w4S4NJEmL.jpg)
![QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 - Image 2](https://m.media-amazon.com/images/I/61v3X+dX7sL.jpg)
![QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 - Image 3](https://m.media-amazon.com/images/I/51d9VNjPB7L.jpg)
![QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 - Image 4](https://m.media-amazon.com/images/I/519yRcrsqJL.jpg)
![QWinOut2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter 4 pcs 18203 - Image 5](https://m.media-amazon.com/images/I/51AM5f6eUNL.jpg)

## Questions & Answers

**Q: My esc's only "d" 3 times and i can't get the esc to accept a throttle range adjustment, any help? should i increase the maximum of my pulse width?**
A: Brownout.

**Q: What is the maximum update rate? 50Hz? 400Hz?**
A: I update mine at 250Hz, 4msec.  Haven't tried going faster so don't know if 400Hz is possible

**Q: Is the BEC linear or switching in these?**
A: The BEC is a constant 5 V output You're running extra equipment on your airplane you might want to use an additional capacitor pack on your  Receiver

**Q: How do I program the brake?**
A: You set the break with the transmitter with the throttle stick and the paperwork for the ESC that it comes with will explain how to do so

## Frequently Bought Together

- QWinOut 2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC with 3.5mm Female Banana Bullet for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter (30A, 4 pcs)
- QWinOut A2212 1400KV Brushless Outrunner Motor with Mount 10T for RC Aircraft/KKmulticopter 4/6 Axle Quadcopter UFO (4 Pcs)
- QwinOut 10x4.5" 1045 1045R CW CCW Propeller Plastic Props Black Compatible for DJI F450 500 F550 FPV Multi-Copter RC QuadCopter Drone (4 Pairs)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-23*