---
product_id: 171204222
title: "2-4S 30A Brushless ESC"
brand: "qwinout"
price: "MX$2149"
currency: MXN
in_stock: true
reviews_count: 12
category: "Q Win Out"
url: https://www.desertcart.mx/products/171204222-2-4s-30a-brushless-esc
store_origin: MX
region: Mexico
---

# 30A continuous current 2-4S LiPo compatible 3.5mm female banana connectors 2-4S 30A Brushless ESC

**Brand:** qwinout
**Price:** MX$2149
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your drone game with plug-and-play power and bulletproof reliability!

## Quick Answers

- **What is this?** 2-4S 30A Brushless ESC by qwinout
- **How much does it cost?** MX$2149 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/171204222-2-4s-30a-brushless-esc)

## 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

- • **Noise-Free Flight:** Military-grade capacitors and low-resistance PCB minimize RF interference for smooth control.
- • **Plug & Play Power:** Pre-flashed SimonK firmware means zero setup fuss—just install and fly.
- • **Smart Safety First:** Multiple protections including low voltage cutoff, overheat, and throttle signal loss keep your drone safe.
- • **Robust Current Handling:** 30A continuous (40A optional) supports high-performance multicopters without overheating.
- • **Universal Compatibility:** Works seamlessly with 2-4S LiPo batteries and popular DIY multicopter setups—future-proof your build.

## Overview

The QWinOut 30A Brushless ESC with SimonK firmware is a lightweight, compact speed controller designed for 2-4S LiPo batteries. Featuring pre-soldered 3.5mm female banana connectors, it ensures hassle-free installation and reliable connections. With continuous 30A current handling, military-grade capacitors to reduce RF noise, and comprehensive safety protections, it’s optimized for DIY multicopters and quadcopters seeking smooth, efficient, and safe flight performance.

## Description

NOTE: 1. ESC was soldered with 3.5mm Female banana connectors, effectively avoid welding problems; 2. have set up the Simonk Firmware program.Brand: QWinOut Working current: 30A/40A (Optional on my shop) Output: 30A Version: Continuous 25A, Burst 40A up to 10 Secs 40A Version: Continuous 40A, Burst 55A not down to 10 Secs Input Voltage:2-4 cells lithium battery or 5-12 cells NiCd/NIMh batteryBEC:5V 3AMax Speed:210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM.(BLM: BrushLess Motor)Weight:about 25gCompatible for: DIY FPV KK MK MWC RC Quadcopter Hexacopter Multi-Rotor Aircraft;210 360 450 Helicopter;380 f450 f550 and other four-axis six-axis fixed-wing drone.Features1.Safety Arming Feature: Regardless the throttle stick position, the motor will not spin after battery connected.2.Throttle Calibration: Throttle range can be configured to provide best throttle linearity, fully compatible with all market available transmitters.3.Programmable Items:Brake Setting:brake enabled/brake disabled. Battery Type:Li-xx(Li-ion or LiPo)/Ni-xx(NiMh or NiCd). Low Voltage Protection Mode(Cutoff Mode):Gradually reduce the output power/Cutoff the output power. Low Voltage Cutoff Protection Threshold (Cutoff Threshold):low/medium/high. Start Mode: normal/soft/very soft. Timing:low/medium/high. Reset: reset all the programmable items to their default settings.4.Full Protection Features: Low voltage cutoff protection/Over-heat protection/Throttle signal lost protection. Suggestion:Do a throttle range adjustment before taking off as following steps:1.Connect ESC/motor/receiver2.Push the remote control throttle to maximum3.Connect power 4.Hear the regular sound of D- D- D……, unplug battery5.Reconnect power and hear DD quickly sound 6.Pull the throttle to minimum7.D sound once, calibration successful

Review: DON'T FOLLOW SELLER INSTRUCTIONS FOR CALLIBRATING - So when I first tried to use these they wouldn't work at all. My main problem turned out to be not having a common ground because I had different power sources for my Arduino controller and the ESC's/Motors. They all work great and don't seem to have any heating issues yet. Used with 935kv motors and 3S battery, working well so far FOR CALLIBRATING: 1. Have motor/reciever sending data 2. Throttle up to full 3. Power the ESC/Motor 3. You should hear 3 D's (means getting power) followed by 1 D (means getting HIGH signal) 4. Lower throttle to the minimum 5. You should hear 2 D's -- after that you should be good to throttle up
Review: Ok but tricky - I initially left a bad review, because after connecting this to an Arduino and trying to activate a motor with a basic servo sketch, it did nothing other than make the ESC beep. Then I did some more research and learned these ESCs have a startup routine needed to "arm" them, AND that I needed to power cycle the ESC after each Arduino update. After doing both of those, then my servo sketch worked.

## Features

- NOTE: 1. Since 2020.07.05, this items was soldered with 3.5mm Female banana connectors, effectively avoid welding problems; 2. We have set up the program, the ESC do not need additional program
- Input voltage:2-4 S; BEC: 5V 3A; Working current: 30A / 40A (Optional on my shop)
- Universal SimonK Firmware 30A/40A ESC Brushless Speed Controller, super simple. Small size combined with light weight for easy installation. (30A/40A is optional on my shop)
- 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 |
|---------------|-------|
| ASIN | B07SFLJJQ5 |
| Age Range Description | Adult |
| Best Sellers Rank | #268,938 in Toys & Games ( See Top 100 in Toys & Games ) #310 in Radio Control Vehicle Speed Controls |
| Brand Name | QWinOut |
| Color | 30a, 4 Pcs |
| Customer Reviews | 4.0 out of 5 stars 193 Reviews |
| Educational Objective | Game, play |
| Indoor Outdoor Usage | Outdoor |
| Is Assembly Required | No |
| Manufacturer | QWinOut |
| Manufacturer Maximum Age (MONTHS) | 18 |
| Manufacturer Part Number | M18203-4 |
| Material Type | Plastic |
| Number of Players | 4 |
| Operation Mode | Automatic |
| Power Source | Battery Powered |
| Set Name | 4 |
| Size | Small |
| Supported Battery Types | A rechargeable lithium polymer (LiPo) battery with a capacity of at least several hundred milliampere-hours (mAh), and a voltage of 7.4V to 14.8V (2S to 4S). Alternatively, a NiCd or NiMh battery with a voltage of 5-12 cells may also be used. |
| Unit Count | 4.0 Count |

## Images

![2-4S 30A Brushless ESC - Image 1](https://m.media-amazon.com/images/I/61w4S4NJEmL.jpg)
![2-4S 30A Brushless ESC - Image 2](https://m.media-amazon.com/images/I/61v3X+dX7sL.jpg)
![2-4S 30A Brushless ESC - Image 3](https://m.media-amazon.com/images/I/51d9VNjPB7L.jpg)
![2-4S 30A Brushless ESC - Image 4](https://m.media-amazon.com/images/I/519yRcrsqJL.jpg)
![2-4S 30A Brushless ESC - Image 5](https://m.media-amazon.com/images/I/51AM5f6eUNL.jpg)

## Available Options

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

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ DON'T FOLLOW SELLER INSTRUCTIONS FOR CALLIBRATING
*by O***T on August 8, 2021*

So when I first tried to use these they wouldn't work at all. My main problem turned out to be not having a common ground because I had different power sources for my Arduino controller and the ESC's/Motors. They all work great and don't seem to have any heating issues yet. Used with 935kv motors and 3S battery, working well so far FOR CALLIBRATING: 1. Have motor/reciever sending data 2. Throttle up to full 3. Power the ESC/Motor 3. You should hear 3 D's (means getting power) followed by 1 D (means getting HIGH signal) 4. Lower throttle to the minimum 5. You should hear 2 D's -- after that you should be good to throttle up

### ⭐⭐⭐⭐⭐ Ok but tricky
*by C***S on April 9, 2025*

I initially left a bad review, because after connecting this to an Arduino and trying to activate a motor with a basic servo sketch, it did nothing other than make the ESC beep. Then I did some more research and learned these ESCs have a startup routine needed to "arm" them, AND that I needed to power cycle the ESC after each Arduino update. After doing both of those, then my servo sketch worked.

### ⭐⭐⭐⭐ Works as advertised
*by D***Y on November 6, 2020*

i BOUGHT THE FOUR SET AND NOW ONLY HAVE ONE THAT WORKS THE SPEED CONTROL GOS OUT AND THE PLANE COMES DOWN TWO THAT ARE WASTED AND ONE GLIDED IN NOT WORTH THE MONEY.

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.mx/products/171204222-2-4s-30a-brushless-esc](https://www.desertcart.mx/products/171204222-2-4s-30a-brushless-esc)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-05-24*