Product overview
The SkyRC 20A ESC, product code SK-300068 and specification designation BLHeli-20A, is a compact electronic speed controller developed for quadcopters. Its nano-format body measures 22×12 mm and weighs 1.86 g, with cables excluded from both measurements. The controller supports 2–4-cell Li-xx batteries and carries a continuous current rating of 20A. Its higher 25A burst rating applies for 10 seconds. The BEC-output specification is “/”, with no output voltage or current stated.
The controller comes loaded with BLHeli firmware and is programmable, with a refresh rate of up to 500Hz and support for OneShot125. Braking can be configured but is switched off by default. Compatible flight controllers include Naze 32, CC3D and other mainstream controllers. SkyRC 1806 or 2204 motors are recommended pairings for better performance. Protective functions cover low-voltage cutoff, overheating and signal loss. This is an ESC component for a quadcopter build.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and product | SkyRC 20A ESC |
| Product code | SK-300068 |
| Purpose | Multi-rotor electronic speed controller developed for quadcopters. |
| Specification item | BLHeli-20A |
| Continuous current | 20A |
| Burst current | 25A10-second burst. |
| Battery cell count | 2–4 cellsLi-xx battery. |
| BEC output | / |
| Programmable | YES |
| Dimensions | 22×12 mmCables excluded. |
| Weight | 1.86 gCables excluded. |
| Firmware | Loaded with BLHeli firmware. |
| Maximum refresh rate | Up to 500Hz. |
| Motor pairing | SkyRC 1806 or 2204 motor recommended for better performance. |
| Braking configuration | Braking setting available; off by default. |
| Control protocol | Supports OneShot125. |
| Protection functions | Low-voltage cutoff, overheating and signal-loss protection. |
| Flight-controller compatibility | Compatible with Naze 32, CC3D and other mainstream flight controllers. |
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