---
product_id: 517498034
title: "2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors"
brand: "kingmodel"
price: "S$114"
currency: SGD
in_stock: false
reviews_count: 5
category: "Kingmodel"
url: https://www.desertcart.sg/products/517498034-2pcs-1s-4a-brushed-esc-dc3-6-5-8v-mini
store_origin: SG
region: Singapore
---

# Supports 3.6-5.8V input voltage Ultra-compact 18.5x9.5mm 4A continuous current for 1S LiPo 2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors

**Brand:** kingmodel
**Price:** S$114
**Availability:** ❌ Out of Stock

## Summary

> 🚤 Tiny ESC, Massive Control — Power Your Miniature Masterpiece!

## Quick Answers

- **What is this?** 2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors by kingmodel
- **How much does it cost?** S$114 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/517498034-2pcs-1s-4a-brushed-esc-dc3-6-5-8v-mini)

## Best For

- kingmodel enthusiasts

## Why This Product

- Trusted kingmodel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety-First Design:** Low throttle start and lost-signal motor stop protect your investment.
- • **Plug & Play Simplicity:** No assembly needed—just connect and dominate your RC game.
- • **Seamless Compatibility:** Works flawlessly with 1S 720, 820, N20, and N30 brushed motors.
- • **Smart Signal Adaptation:** Auto-adjusts PWM input (1000-2000µs) for smooth, responsive control.
- • **Featherweight Powerhouse:** Under 1g board weight keeps your RC craft nimble and fast.

## Overview

The KINGMODEL 1S 4A Brushed ESC is an ultra-compact, lightweight speed controller designed for 1S brushed motors like 720, 820, N20, and N30. Operating between 3.6V and 5.8V with a continuous 4A current rating, it features automatic PWM signal adaptation and safety mechanisms including low throttle start and lost-signal motor shutdown. Perfect for RC boats and small aircraft, this plug-and-play ESC delivers reliable, precise motor control in a minimalist footprint.

## Description

The KINGMODEL 1S 4A brushed ESC is ultra-small speed controller , can drive all kinds of 1S 720, 820, N20, N30 motors. It is a good choice for a 1S small plane and a small boat. It is unidirectional brushed ESC. Parameter: Voltage 3.6V - 5.8V Current 4A (1S lithium battery or 4 NiMH). Remote control signal pwm (1000-2000)) (1100-1900) automatic adaptation of the run. Low throttle start to prevent unsafe safety of high throttle motor rotation. With out of control protection (lost signal (equivalent to the ESC signal line is broken), the motor stops). Receiver power output = battery voltage minus 0.2v or 0.3v maximum allowable current 3A. Item Name: Electronic Speed Controller Model: Brushed Voltage: 3.6 - 5.8 V. Current: 4A (support 1S LiPo battery). Remote control signal PWM: (1000-2000) (1100-1900) automatic adjustment of the run. Size: 18.5 x 9.5 mm. Weight: less than 1g (only plate without wire). Weight: 5g plate with wire 5g. Application: suitable for all types of 1S 720. 820 N20 N30 Engines. Receiver power supply: The power supply mode is that the battery is directly powered and there is a 3A freewheel diode. But when a large current is used, the voltage drop of the 1S battery is very large. If the battery voltage is 3.88V, the voltage is reduced by 3.06V when the current is 4A. The ESC can work with this voltage, but the receiver does not necessarily work. The measured world flies 7-way, and the foot 3-way receiver 3.06 V can still work normally, but Led will not work. Suggestions: If you want to fly with FU-TA-BA or FLYSKY receiver, 8520 or even 1020 hollow cups, you can use this ESC. If you use radio-link, you should use it in 2A-3A. As the current is too large and the voltage drop is too large, the radio-link receiver can be disconnected. Please note that the receiver is disconnected due to the large voltage drop. This ESC has nothing with the ESC 2.7V. To do Package includes: 3pcs x 1S 4A brushed ESC.

Review: Great little ESC
Review: Very small but work good

## Features

- Ultra-small: 18.5*9.5mm, Less than 1g of the plate, Voltage 3.6V - 5.8V Current 4A (1S lithium battery or 4 NiMH)
- Application: suitable for all types of 1S 720. 820 N20 N30 Engines
- Remote control signal: PWM (1000-2000)) (1100-1900) automatic adaptation of the run
- Receiver power output = battery voltage minus 0.2v or 0.3v maximum allowable current 3A
- Note: It is unidirectional brushed ESC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | KM4AESC |
| Assembly Required | No |
| Batteries Required | No |
| Batteries Included | No |
| Material Type(s) | Plastic |
| Remote Control Included? | No |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 20 g |
| Item model number | KM4AESC |
| Manufacturer recommended age | 1 month and up |
| Manufacturer | KINGMODEL |
| Country of Origin | USA |
| Item Weight | 20 g |

## Images

![2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors - Image 1](https://m.media-amazon.com/images/I/510n6nZIytL.jpg)
![2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors - Image 2](https://m.media-amazon.com/images/I/51gu+nQDJGL.jpg)
![2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors - Image 3](https://m.media-amazon.com/images/I/518afSXFguL.jpg)
![2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors - Image 4](https://m.media-amazon.com/images/I/618KQEBENZL.jpg)
![2pcs 1S 4A Brushed ESC DC3.6-5.8V Mini Speed Controller for RC Boats Aircraft Airplane 720 820 Hollow Cup Motor/N20 N30 Coreless Motors - Image 5](https://m.media-amazon.com/images/I/51LRpFnPHnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little ESC
*by F***S on 4 February 2023*



### ⭐⭐⭐ Very small but work good
*by A***R on 5 March 2024*



### ⭐⭐⭐⭐⭐ Used on a wltoys airplane
*by C***� on 15 February 2024*



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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-22*