---
product_id: 343485588
title: "54.6V 4A Power Supply Adapter Charger for 48V Lithium Li-ion Battery Pack with DC 5.5x2.1mm Plug"
brand: "aunstarwei"
price: "2661272₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Aunstarwei"
url: https://www.desertcart.vn/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium
store_origin: VN
region: Vietnam
---

# 54.6V high-voltage output Dual DC plug sizes 5.5x2.1mm & 5.5x2.5mm Multi-layer safety protections 54.6V 4A Power Supply Adapter Charger for 48V Lithium Li-ion Battery Pack with DC 5.5x2.1mm Plug

**Brand:** aunstarwei
**Price:** 2661272₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your hustle with safety and speed — never miss a charge!

## Quick Answers

- **What is this?** 54.6V 4A Power Supply Adapter Charger for 48V Lithium Li-ion Battery Pack with DC 5.5x2.1mm Plug by aunstarwei
- **How much does it cost?** 2661272₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium)

## Best For

- aunstarwei enthusiasts

## Why This Product

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

## Key Features

- • **Global Ready:** Wide 100-240V AC input ensures seamless use anywhere you work or travel.
- • **Safety First, Always:** Built-in OVP, OCP, overload & short-circuit protections keep your devices secure.
- • **Power Up with Precision:** Delivers a stable 54.6V at 4A output for rapid, reliable charging.
- • **Universal Compatibility:** Supports 13S 48V Li-ion & Li-poly battery packs with dual DC plug options.
- • **Charge Status at a Glance:** Intuitive red/green LED indicator keeps you informed without guesswork.

## Overview

This 54.6V 4A power supply adapter is engineered for 13S 48V lithium-ion and lithium-polymer battery packs, featuring dual DC plug sizes (5.5x2.1mm & 5.5x2.5mm) for versatile compatibility. It supports a wide AC input range (100-240V) for global use and integrates comprehensive safety protections including over-voltage, over-current, overload, and short-circuit safeguards. The charger’s LED indicator clearly signals charging status, making it an essential, reliable power solution for professionals demanding efficiency and security.

## Description

Features: Input: AC 100-240V, 50-60Hz Output: DC 54.6V 4A Connecter size: DC interface（outside diameter of 5.5 mm; inner diameter of 2.1mm or 2.5mm） Condition: Brand New Li-ion battery charger Package Content: 1 X 54.6V 4A Li-ion Battery Charger 1 X Power Cord

Review: Used to power my Unifi USW-Ultra - I bought this to power my Unifi USW-Ultra switch and it works perfectly. You do need to tell the switch that it has a beefier power supply connected, but I think you'd have to do this with the official power supply. It works great. I would recommend.
Review: Loud and dangerous - I’m no expert but this sounds very dangerous to me, I have only owned this for 5 months.

## Features

- Input: 100-240Vac, 1.5A; Output: 54.6V 4A
- Connector size: DC plug 5.5*2.1mm and 5.5*2.5mm
- Charger for 13 Series 13S 48V Lithium Li-ion Li-poly battery.
- Indication Light: Red Light when charging, Green Light when fully charged
- Security Protection: OVP(over-voltage protection)/OCP(Over current protection)/Overload protection/ Short-circuit protection.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095W3NMLQ |
| Best Sellers Rank | 20,046 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 198 in Household Battery Chargers |
| Guaranteed software updates until | unknown |
| Manufacturer | aunstarwei |
| Package Dimensions | 22 x 11.8 x 5.9 cm; 510 g |

## Product Details

- **Brand:** aunstarwei
- **Colour:** Green,Red
- **Input voltage:** 240 Volts
- **Output voltage:** 54.6
- **Specification met:** OCP

## Images

![54.6V 4A Power Supply Adapter Charger for 48V Lithium Li-ion Battery Pack with DC 5.5x2.1mm Plug - Image 1](https://m.media-amazon.com/images/I/511LaUetaLS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Used to power my Unifi USW-Ultra
*by J***R on 3 January 2025*

I bought this to power my Unifi USW-Ultra switch and it works perfectly. You do need to tell the switch that it has a beefier power supply connected, but I think you'd have to do this with the official power supply. It works great. I would recommend.

### ⭐ Loud and dangerous
*by J***I on 4 March 2025*

I’m no expert but this sounds very dangerous to me, I have only owned this for 5 months.

### ⭐⭐⭐⭐⭐ Great budget eEbike replacement charger.
*by M***W on 25 November 2022*

Very quick delivery and works great, would buy form this supplier again.

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**Shop now:** [https://www.desertcart.vn/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium](https://www.desertcart.vn/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-15*