--- 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: "€ 75.16" currency: EUR in_stock: true reviews_count: 8 category: "Aunstarwei" url: https://www.desertcart.gr/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium store_origin: GR region: Greece --- # 54.6V high-voltage output 4A fast charging current Dual DC plug sizes (5.5x2.1mm & 5.5x2.5mm) 54.6V 4A Power Supply Adapter Charger for 48V Lithium Li-ion Battery Pack with DC 5.5x2.1mm Plug **Brand:** aunstarwei **Price:** € 75.16 **Availability:** ✅ In Stock ## Summary > 🔋 Charge smarter, power stronger — never miss a beat! ## 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?** € 75.16 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Built-in Safety Suite:** Advanced protections against over-voltage, over-current, overload, and short circuits keep your devices safe and sound. - • **Fast & Reliable Current:** 4A amperage delivers rapid charging without compromising battery health. - • **Power Up with Precision:** 54.6V output tailored for 48V Li-ion battery packs ensures optimal charging efficiency. - • **Smart Charging Indicators:** Red and green LED lights keep you informed—know exactly when your battery is ready to go. - • **Universal Connector Compatibility:** Includes both 5.5x2.1mm and 5.5x2.5mm DC plugs for versatile device support. ## Overview The 54.6V 4A Power Supply Adapter Charger is engineered for 48V Lithium Li-ion battery packs, featuring dual DC plug sizes for broad compatibility. It supports fast, efficient charging with clear LED status indicators and comprehensive safety protections, making it a reliable choice for powering your high-performance electronics. ## 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 | | Amperage | 4 Amps | | Best Sellers Rank | 48,612 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 443 in Household Battery Chargers | | Brand | aunstarwei | | Brand Name | aunstarwei | | Colour | Green,Red | | Compatible Devices | 48V Lithium Li-ion Battery Pack devices | | Connector Types | DC 5.5x2.1mm and 5.5x2.5mm | | Country of Origin | China | | Current Rating | 4 Amps | | Current rating | 4 Amps | | Customer Reviews | 3.4 out of 5 stars 28 Reviews | | Input Voltage | 240 Volts | | Input voltage | 240 Volts | | Manufacturer | aunstarwei | | Number of Ports | 1 | | Output Voltage | 54.6 | | Output voltage | 54.6 | | Product Warranty | 2 Year Limited Warranty | | Specification Met | OCP | | Specification met | OCP | | Unit Count | 1.0 count | ## 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. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium](https://www.desertcart.gr/products/343485588-54-6v-4a-power-supply-adapter-charger-for-48v-lithium) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-26*