--- product_id: 281263580 title: "QWinOut 2-4S 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: "$161.83" currency: USD in_stock: true url: https://www.desertcart.us/products/281263580-qwinout-2-4s-30a-rc-brushless-esc-simonk-firmware-electric store_origin: US region: United States of America --- # 30A Power Compact Design 5V 3A BEC QWinOut 2-4S 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:** $161.83 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate Your Flight Experience! ## Quick Answers - **What is this?** QWinOut 2-4S 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?** $161.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/281263580-qwinout-2-4s-30a-rc-brushless-esc-simonk-firmware-electric) ## 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 ![QWinOut 2-4S 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) ## 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) --- ## 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.us/products/281263580-qwinout-2-4s-30a-rc-brushless-esc-simonk-firmware-electric](https://www.desertcart.us/products/281263580-qwinout-2-4s-30a-rc-brushless-esc-simonk-firmware-electric) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-18*