---
product_id: 186585726
title: "RLECS 5V 3A External UBEC Voltage Regulator Support 2S-5S Receiver Power Supply for RC Airplane Aircraft"
brand: "rlecs"
price: "3163 som"
currency: KGS
in_stock: true
reviews_count: 2
url: https://www.desertcart.kg/products/186585726-rlecs-5v-3a-external-ubec-voltage-regulator-support-2s-5s
store_origin: KG
region: Kyrgyzstan
---

# 5V 3A stable output 92% high efficiency, less heat Reverse polarity & thermal protection RLECS 5V 3A External UBEC Voltage Regulator Support 2S-5S Receiver Power Supply for RC Airplane Aircraft

**Brand:** rlecs
**Price:** 3163 som
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your RC adventures with efficiency and protection!

## Quick Answers

- **What is this?** RLECS 5V 3A External UBEC Voltage Regulator Support 2S-5S Receiver Power Supply for RC Airplane Aircraft by rlecs
- **How much does it cost?** 3163 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/186585726-rlecs-5v-3a-external-ubec-voltage-regulator-support-2s-5s)

## Best For

- rlecs enthusiasts

## Why This Product

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

## Key Features

- • **Built to Protect:** Integrated over-current, over-temperature, and reverse polarity protections safeguard your investment.
- • **Compact & Lightweight:** At just 11g with a shielded casing, it fits seamlessly into any RC setup without bulk.
- • **Stay Cool, Fly Longer:** Advanced switching design boosts efficiency to 92%, minimizing heat and extending battery life.
- • **Universal Compatibility:** Supports 2S-5S battery inputs (5.5-23V), making it versatile for various RC models.
- • **Power Your Flight with Precision:** Delivers a consistent 5V 3A output, perfect for demanding RC aircraft receivers.

## Overview

The RLECS 5V 3A External UBEC is a compact, high-efficiency voltage regulator designed for RC airplanes. It delivers a stable 5V 3A output from 5.5-23V input, features advanced switching technology with 92% efficiency, and includes multiple protections such as over-current, over-temperature, and reverse polarity. Lightweight and shielded, it ensures reliable receiver power with minimal heat and extended battery life.

## Description

Specification: Output: 5V 3A Power Input: 5.5-23V (2S-5S Li-ion Battery Pack or 5-15 cells nickel-metal hydride/nickel-cadmium battery pack) Weight: Approx. 11g Ripple: Less than 50mVp-p (2A/12V) Package includes: 1 x UBEC 3A 5V Receiver Power Supply  Advantages compared with traditional BEC: When using more than 3s (11.1v) batteries, BEC heating can be greatly reduced and overall efficiency can be improved. For example, when using 4s lithium batteries, the voltage is about 14.8v in normal use. Adopting linear voltage regulation mode, the power supply must input 1A current to output 5V/1A current. Therefore, there will be 14.8V x 1A = 14.8W power consumed on BEC. However, the actual useful output of BEC is only 5V x 1A=5W, so the overall efficiency is only 5/14.8= 33.8%. Besides, the power consumption of 9.8W will be converted into heat, which will cause BEC overheating and the chip entering the protection state and fail to work. Adopting switching power supply mode, the actual tests show that there is only need to input 0.38A current to output 5V/1A current. The power is 14.8V x 0.38A = 5.6W, so the overall efficiency is 5/5.6=89.3%.

## Features

- Type: External UBEC 3A 5V Receiver Power Supply; Much higher efficiency than liniar BEC, less heating and longer battery life
- Output: 5V 3A, Power Input: 5.5-23V, Weight: Approx. 11g, Ripple: Less than 50mVp-p (2A/12V). Covered with a shield for protecting components, compact size, light weight, more convenient to use
- Advanced switching power supply structure design, the frequency of switching power supply main control chip is 300KHz, with over current and over temperature protection function, chip efficiency is up to 92%
- With the protection function for reverse polarity connection protection of the power supply. If the power supply is accidentally connected, it will not cause damage to UBEC
- Package includes: 1 x UBEC 3A 5V Receiver Power Supply

## Product Details

- **Brand:** RLECS
- **Color:** multicolor
- **Item Weight:** 11 Grams
- **Input Voltage:** 24 Volts
- **Output Voltage:** 5 Volts

## Images

![RLECS 5V 3A External UBEC Voltage Regulator Support 2S-5S Receiver Power Supply for RC Airplane Aircraft - Image 1](https://m.media-amazon.com/images/I/61mliHVjihL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great to run 5 volt servos on 2 Lipo
*by P***E on November 11, 2021*

Used your regulator to power 2 feather servos and a 2.4 Ghz reciever in a very small radio box for a 1cc nitro boat. It produced a very quiet and glitch free power supply from 2 small lipo batteries. The 7.4 volts burned up a couple of the smaller servos, but no problems since I added the regulator. The entire model is only about 1 pound and this helped keep power supply light.

### ⭐ Don’t waste your money
*by B***N on February 14, 2024*

Was using this to step voltage down from 11.1v to 5 volts. It worked for about 20 seconds to run a 5v pump. After that it would not run with this regullator. I removed it and went straight to a 6 volt battery and the pump works fine. I tried several bars but clearly this unit is junk

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**Shop now:** [https://www.desertcart.kg/products/186585726-rlecs-5v-3a-external-ubec-voltage-regulator-support-2s-5s](https://www.desertcart.kg/products/186585726-rlecs-5v-3a-external-ubec-voltage-regulator-support-2s-5s)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-02*