--- product_id: 368023283 title: "Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS)" brand: "readytosky" price: "$85.51" currency: USD in_stock: true reviews_count: 8 category: "Readytosky" url: https://www.desertcart.us/products/368023283-readytosky-30a-esc-2-6s-opto-brushless-electronic-speed-controller store_origin: US region: United States of America --- # 30A continuous current power 2-6S LiPo battery compatibility Adaptive intelligent firmware Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS) **Brand:** readytosky **Price:** $85.51 **Availability:** ✅ In Stock ## Summary > 🚁 Elevate your drone game with power, precision, and unmatched control! ## Quick Answers - **What is this?** Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS) by readytosky - **How much does it cost?** $85.51 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/368023283-readytosky-30a-esc-2-6s-opto-brushless-electronic-speed-controller) ## 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 - • **Signal Integrity Boost:** Twisted pair copper throttle signal line minimizes crosstalk for precise, jitter-free control. - • **Power-Packed Performance:** Delivers a robust 30A continuous current with 40A max for heavy-lift drones and multicopters. - • **Smart & Adaptive Firmware:** Optimized ESC firmware ensures ultra-smooth throttle response and broad flight controller compatibility. - • **Cutting-Edge MOSFET Driver:** Advanced MOSFET chip technology guarantees superior stability and efficiency beyond standard ESCs. - • **Seamless Battery Flexibility:** Supports 2-6S LiPo batteries, giving you versatile power options for any flight mission. ## Overview The 30A ESC 2-6S OPTO Brushless Electronic Speed Controller is a lightweight, high-performance quad-pack designed for RC helicopters and multicopters. Featuring intelligent adaptive firmware, compatibility with 2-6S LiPo batteries, and advanced MOSFET drivers, it delivers stable, efficient power with minimal signal interference—perfect for professional-grade aerial enthusiasts seeking reliable, smooth flight control. ## Description Product description 2-6S 30A ESC OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS) Features 1, Specifically optimized firmware ESC, the ESC has a very good compatibility; 2, Highly intelligent, adaptive ability, extremely easy to use; 3, Throttle signal line is a twisted pair, copper wire to reduce crosstalk signal generated 4, Supports up to 621Hz refresh rates up to the throttle signal, compatible with a variety of flight control (Note: More than 500Hz signal of the throttle throttle are all non-standard signal) 5, Use MOSFET special driver chip, performance and stability far beyond the driving circuit with discrete components built ESC Specification Cont. Current: 30A Max. Current: 40A BEC : No (OPTO ESC) Li-ion/Li0poly:2-6S Weight: 28.5g(with 3.5mm banana connectors); 4pcs* 30A Opto ESCS 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: Inconvenient startup, but works fine - Inconvenient startup procedure, but the ESCs themselves seem to work fine for my 2-3s setups ## Features - ★30A OPTO 2-6S Brushless electronic speed controller. - ★Highly intelligent, adaptive ability, extremely easy to use; - ★Continuous Current: 30A Weight: 28.5g. - ★Specifically optimized firmware ESC, the ESC has a very good compatibility. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09G5WFXSV | | Additional Features | Portable | | Age Range Description | Kid | | Are Batteries Required | No | | Batteries are Included | No | | Battery Description | Lithium-Ion | | Best Sellers Rank | #119,232 in Toys & Games ( See Top 100 in Toys & Games ) #77 in Radio Control Vehicle Speed Controls #83 in Hobby RC Helicopters | | Brand Name | Readytosky | | Color | 30a Opto Esc 2-6s | | Customer Reviews | 4.4 out of 5 stars 52 Reviews | | Included Components | 1 or 4pcs* 30A ESC | | Indoor Outdoor Usage | Outdoor | | Is Assembly Required | No | | Manufacturer | Readytosky | | Manufacturer Maximum Age (MONTHS) | 1200 | | Manufacturer Minimum Age (MONTHS) | 216.00 | | Manufacturer Part Number | Y23-4 | | Material Type | Plastic | | Model Name | Y23-4 | | Model Number | Y23-4 | | Number of Items | 4 | | Number of Players | 1 | | Operation Mode | manual | | Power Source | Battery Powered | | Set Name | 4-Pack | | Theme | helicopter | | Toy Vehicle Form | Helicopter | | Unit Count | 1.0 Count | ## Images ![Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 S500 ZD550 RC Helicopter Quadcopter(4PCS) - Image 1](https://m.media-amazon.com/images/I/61FoYvswpRL.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! ### ⭐⭐⭐⭐⭐ Inconvenient startup, but works fine *by T***K on January 8, 2026* Inconvenient startup procedure, but the ESCs themselves seem to work fine for my 2-3s setups ### ⭐⭐⭐⭐⭐ Replaced ESCs were perfect *by E***E on June 30, 2023* Received 4 ESCs and upon testing, found 3 with defective waveforms. Returned order to Amazon. Replacement was ordered promptly by Amazon and received within a few days in Fiji. All ESCs showed perfect waveforms. Very happy :) ## Frequently Bought Together - Readytosky 30A ESC 2-6S OPTO Brushless Electronic Speed Controller for F450 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 --- ## 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/368023283-readytosky-30a-esc-2-6s-opto-brushless-electronic-speed-controller](https://www.desertcart.us/products/368023283-readytosky-30a-esc-2-6s-opto-brushless-electronic-speed-controller) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-07*