Hobbywing Skywalker-40A-UBEC


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 1504093
  1. Continuous Current: 40A
  2. Burst Current: 55A (10 Sec.)
  3. BEC Mode: Linear Mode, 5V@3A
  4. Programmable: Yes
  5. Battery cell: 2 to 4 Li-Po, or 5 to 12 Ni-MH/Ni-Cd


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Brand: Hobbywing
Category: (ESC) Drone Speed Controller
Tags: 40A ESCs, Hobbywing Skywalker-40A-UBEC

The Hobbywing Skywalker-40A-UBEC is an electronic speed controller (ESC) designed for remote control hobby aircraft and drones. It is capable of handling up to 40 amps of current and features a built-in UBEC (Universal Battery Elimination Circuit) that regulates voltage to power the receiver and servos. The Hobbywing Skywalker-40A-UBEC also has a smooth and linear throttle response, making it ideal for precision flying. Additionally, the ESC is programmable via a computer or programming card, allowing users to customize throttle response, braking, and other parameters to their liking. The compact and lightweight design of the Hobbywing Skywalker-40A-UBEC makes it easy to install and ideal for use in small to medium-sized aircraft and drones.

Hobbywing Skywalker-40A-UBEC ESC Although it is a budget choice, it is made within Hobbywing Factory, not an OEM cheapo. It uses Linear mode UBEC instead of Switching mode BEC (BEC is the circuit that powers the Servos), so the price can come down. Overall, Hobbywing Skywalker-40A-UBEC still does the job of providing 40A power to the motor, just a bit hotter than other Hobbywing Skywalker-40A.


  1. Safety Function: If the throttle stick is not at the bottom while connecting the battery, the motor will not start
  2. Throttle Range Setting
  3. Programmable using Hobbywing Program Card or by using Throttle Stick
  4. Setup Braking
  5. Setup Low Voltage Cutoff Soft / Hard
  6. Setup Start mode Normal / Slow / Slow
  7. Setup Timing Low / Mid / High
  8. High Voltage Protection
  9. Overheat Protection
  10. No Signal Shut Off Protection

Package Includes:

1 x Hobbywing Skywalker-40A- UBEC


Hobbywing Skywalker-40A-UBEC

Continuous Current


Burst Current


Input Voltage

2-4S LiPo battery or 5-12 cells NiMH/NiCd battery

BEC Output

5V/3A (Switch mode)


68mm (L) x 25mm (W) x 12mm (H)


43g (with wires)

Supported Programming Functions

Brake setting, Battery type, Low voltage cutoff, Timing set, Soft start, Governor mode

Supported Throttle Range

640us-2000us (for 2-4S LiPo or 4-12 cells NiMH/NiCd)

Protection Features

Low voltage cutoff protection, Overheat protection, Throttle signal loss protection, Motor stall protection

Supported motor types

sensorless brushless motors

Programming method

via programming card or transmitter

Supported throttle signals

PWM, Oneshot125, Oneshot42, Multishot, and DShot.

Shipping Weight 0.056 kg
Shipping Dimensions 18 × 11 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China

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