--- product_id: 220531717 title: "50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller" brand: "readytosky" price: "$46.99" currency: USD in_stock: true category: "Readytosky" url: https://www.desertcart.us/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller-electric-speed-controller store_origin: US region: United States of America --- # 50A continuous current Bidirectional 1:1 power output 2-6S LiPo battery compatibility 50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller **Brand:** readytosky **Price:** $46.99 **Availability:** ✅ In Stock ## Summary > ⚡ Master your RC world with instant power and flawless control! ## Quick Answers - **What is this?** 50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller by readytosky - **How much does it cost?** $46.99 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/220531717-50a-bidirectional-brushless-esc-electric-speed-controller-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 needed—just connect and dominate your RC vehicle. - • **Reliable Power Delivery:** Robust 50A current handling with integrated 5A/5V UBEC ensures stable, efficient performance. - • **Versatile Compatibility:** Perfectly engineered for cars, boats, and underwater thrusters—one ESC to rule them all. - • **Precision Throttle Management:** Throttle stick center start and fine trim adjustments guarantee smooth, fail-proof operation. - • **Seamless Bidirectional Control:** Instant reverse with direct power output for razor-sharp handling and responsiveness. ## Overview The 50A Bidirectional Brushless ESC by Readytosky delivers powerful, plug-and-play speed control for RC cars, boats, and underwater thrusters. Supporting 2-6S LiPo batteries and featuring a 5A/5V UBEC, it offers seamless bidirectional 1:1 power output with no brake delay, ensuring quick response and precise handling. Designed for professionals and hobbyists alike, it eliminates throttle calibration hassle and guarantees reliable, high-performance operation. ## 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 ## 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 | #225,308 in Toys & Games ( See Top 100 in Toys & Games ) #243 in Radio Control Vehicle Speed Controls #1,007 in Hobby RC Cars | | Brand Name | Readytosky | | Customer Reviews | 4.2 4.2 out of 5 stars (116) | | Item Weight | 0.05 kg | | Manufacturer | readytosky | | 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 | Electric Speed Controller for RC Car Boat Underwater Propeller - Image 1](https://m.media-amazon.com/images/I/71GZbiHRY4L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller - Image 2](https://m.media-amazon.com/images/I/713kBiljrIL.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller - Image 3](https://m.media-amazon.com/images/I/71P-E2lSq1L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller - Image 4](https://m.media-amazon.com/images/I/71-cklFg56L.jpg) ![50A Bidirectional Brushless ESC Electric Speed Controller | Electric Speed Controller for RC Car Boat Underwater Propeller - Image 5](https://m.media-amazon.com/images/I/71ZANNeO92L.jpg) ## Available Options This product comes in different **Color** options. ## 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.us/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller-electric-speed-controller](https://www.desertcart.us/products/220531717-50a-bidirectional-brushless-esc-electric-speed-controller-electric-speed-controller) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-30*