--- product_id: 220531717 title: "50A Bidirectional Brushless ESC Electric Speed Controller" brand: "readytosky" price: "₩61660" currency: KRW in_stock: true reviews_count: 8 category: "Readytosky" url: https://www.desertcart.kr/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller store_origin: KR region: South Korea --- # 50A continuous current Bidirectional 1:1 power output Plug & play, no calibration needed 50A Bidirectional Brushless ESC Electric Speed Controller **Brand:** readytosky **Price:** ₩61660 **Availability:** ✅ In Stock ## Summary > ⚡ Take control in every direction—power, precision, and plug & play perfection! ## Quick Answers - **What is this?** 50A Bidirectional Brushless ESC Electric Speed Controller by readytosky - **How much does it cost?** ₩61660 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/220531717-50a-bidirectional-brushless-esc-electric-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 - • **Plug & Play Simplicity:** No throttle calibration required—just connect and dominate your RC vehicle or watercraft. - • **Versatile Compatibility:** Perfect for cars, boats, and underwater thrusters, expanding your RC horizons. - • **Robust 50A Power Handling:** Supports 2-6s LiPo batteries delivering consistent high current for peak performance. - • **Reliable UBEC 5A 5V Output:** Stable power supply ensures smooth operation of your receiver and servos. - • **Seamless Bidirectional Control:** Instant forward and reverse with zero lag for ultimate maneuverability. ## Overview The 50A Bidirectional Brushless ESC by Readytosky delivers reliable, high-current performance with seamless forward and reverse control. Designed for 2-6s LiPo setups, it requires no throttle calibration, making it an effortless upgrade for RC cars, boats, and underwater thrusters. Featuring a built-in 5A 5V UBEC, this aluminum-bodied ESC ensures stable power delivery and quick response, perfect for professionals demanding precision and versatility. ## Description Bidirectional 50A 2-6s UBEC 5A 5V This product adopts imported components, full power test. It can be used in cars, ships, underwater thrusters. Bidirectional 1:1 power output, no brake,direct reverse, quick response, good handling. No need to calibrate throttle stroke, plug and play. All products contain UBEC output. Note: 1. When using, the remote control throttle remote lever must be in the middle position, otherwise it cannot start. 2. There is no need to calibrate the throttle stroke. When the electric adjustment is started, if the motor starts to rotate, you can use the remote control to fine-tune the throttle to stop the motor. Package include: 1 x 50A Bidirectional ESC Review: Even though One failed, the replaced it quickly! - Update to this review: ReadyToSky was good enough to send me a new ESC, even though it was out of Warranty. Thankyou!! I tested the new one provided by ReadyToSky, and it works perfectly! I am grateful they responded so quickly to help my situation! I will try out the new ESC once I receive it, and update review accordingly. I wanted to like this, but I shorted out and almost started on fire the first time I tried to use it. I bought two of these. One worked fin Review: Works great for feilun FT011 needs foward and reverse to flip over - First few water cooled speed controls i bought had no revearse so boat couldnt flip if flipped. ## Features - Bidirectional 50A 2-6s UBEC 5A 5V. - It can be used in cars, ships, underwater thrusters. - No need to calibrate throttle stroke, plug and play. - Bidirectional 1:1 power output, no brake,direct reverse, quick response, good handling. - Simple Manual: 1.Throttle stick must be in center or it will not start. 2.ESC no need to calibrate throttle range. When start,if motor run,please use Throttle triming to make it stop. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08C9XHMBX | | Best Sellers Rank | #176,438 in Toys & Games ( See Top 100 in Toys & Games ) #135 in Radio Control Vehicle Speed Controls #1,325 in Hobby RC Cars | | Brand | Readytosky | | Brand Name | Readytosky | | Customer Reviews | 4.2 out of 5 stars 66 Reviews | | Item Weight | 0.05 kg | | Manufacturer | readytosky | | Material | Aluminum | | Material Type | Aluminum | | Model | S50 | | Model Name | ubec 5a | | Part Number | S50 | | Voltage | 5 volts | ## Product Details - **Brand:** Readytosky - **Item Weight:** 0.05 kg - **Material:** Aluminum - **Model Name:** ubec 5a - **Voltage:** 5 volts ## Images ![50A Bidirectional Brushless ESC Electric Speed Controller - Image 1](https://m.media-amazon.com/images/I/71GZbiHRY4L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller - Image 2](https://m.media-amazon.com/images/I/713kBiljrIL.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller - Image 3](https://m.media-amazon.com/images/I/71P-E2lSq1L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller - Image 4](https://m.media-amazon.com/images/I/71-cklFg56L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller - Image 5](https://m.media-amazon.com/images/I/71ZANNeO92L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Even though One failed, the replaced it quickly! *by B***A on February 4, 2023* Update to this review: ReadyToSky was good enough to send me a new ESC, even though it was out of Warranty. Thankyou!! I tested the new one provided by ReadyToSky, and it works perfectly! I am grateful they responded so quickly to help my situation! I will try out the new ESC once I receive it, and update review accordingly. I wanted to like this, but I shorted out and almost started on fire the first time I tried to use it. I bought two of these. One worked fin ### ⭐⭐⭐⭐⭐ Works great for feilun FT011 needs foward and reverse to flip over *by M***E on January 7, 2024* First few water cooled speed controls i bought had no revearse so boat couldnt flip if flipped. ### ⭐⭐⭐ This ESC doesn't Have a Calibration Mode *by Y***I on July 1, 2022* For buyers that are building a drone/plane, beware that it is a Bidirectional ESC that doesn't have a calibration mode. ## Frequently Bought Together - Readytosky 50A Bidirectional Brushless ESC 2-6S UBEC 5A 5V Electric Speed Controller for RC Car Boat Underwater Propeller - 30 Pairs Vgoohobby 3.5mm Male Female Gold Plated Banana Plug Bullet Connector ESC Plugs Replacement for RC Battery ESC Motor Wire DIY Helicopter - MCIGICM 10 Pair XT60H (XT60 Upgrade) Male Female Bullet Connectors Plugs --- ## 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.kr/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller](https://www.desertcart.kr/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-04*