--- product_id: 392389269 title: "AC 100‑240V Lithium‑ion Battery , DC 21V 2A Power Supply Adapter, Fireproof, 5.5 * 2.5mm Output Port, Black Power Supply Adapter, Fast for Charging(British regulatory)" brand: "bewinner1" price: "$19.20" currency: USD in_stock: true reviews_count: 3 category: "Bewinner1" url: https://www.desertcart.us/products/392389269-ac-100-240v-lithium-ion-battery-dc-21v-2a-power store_origin: US region: United States of America --- # 2A fast charging output 100-240V universal AC input Fireproof & safety-certified AC 100‑240V Lithium‑ion Battery , DC 21V 2A Power Supply Adapter, Fireproof, 5.5 * 2.5mm Output Port, Black Power Supply Adapter, Fast for Charging(British regulatory) **Brand:** bewinner1 **Price:** $19.20 **Availability:** ✅ In Stock ## Summary > ⚡ Power Up Fast, Charge Smart, Stay Safe! ## Quick Answers - **What is this?** AC 100‑240V Lithium‑ion Battery , DC 21V 2A Power Supply Adapter, Fireproof, 5.5 * 2.5mm Output Port, Black Power Supply Adapter, Fast for Charging(British regulatory) by bewinner1 - **How much does it cost?** $19.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/392389269-ac-100-240v-lithium-ion-battery-dc-21v-2a-power) ## Best For - bewinner1 enthusiasts ## Why This Product - Trusted bewinner1 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid 2A Charging Power:** Get your devices juiced up faster with a robust 2 Amp output that keeps you moving. - • **Versatile Device Support:** Perfect replacement for headlights, toy cars, balance cars, and more—one adapter, endless uses. - • **Fireproof Safety Assurance:** Crafted with fire-resistant materials and built-in protection chips for peace of mind. - • **Clear LED Charging Indicator:** Stay informed with a bright LED that shows your charging status at a glance. - • **Global Voltage Compatibility:** Seamlessly works worldwide with a wide 100-240V AC input—travel-ready and hassle-free. ## Overview This black lithium-ion power supply adapter delivers a reliable 21V DC output at 2A, compatible with a broad 100-240V AC input range. Designed with fireproof ABS material and integrated safety chips, it protects against overheating, overcharging, and short circuits. Ideal as a replacement for various devices like headlights and toy cars, it features a proprietary 5.5 x 2.5mm output port and a clear LED charging indicator for user convenience. ## Description This is a replacement battery for lithium-ion battery. Built-in chips, fully from overcharging, over current, short circuit, and so on. Made of and fireproof material, you can use it easily and freely for charging. Features: Professional lithium-ion battery , to replace your broken or lost one, widely used for headlight, toy car, balance car, and more. Wide voltage input, support universal standards AC input voltage within 100-240V. High efficiency, and fast for charging, 2A large current output. Built-in stable performance chips, the battery from overheat, overcharging, over current, and short circuit. Made of environmental-friendly material, and anti-interference, to use. LED indicator light shows the charging status clearly. Specification: Material: ABS Color: Black Input: AC 100-240V 50Hz/ 60Hz Output: DC 21V 2A Output Port: 5.5 * 2.5mm Adapter Size: Approx. 8.5 x 4.5 x 3cm / 3.3 x 1.8 x 1.2in Package Weight: 110g Package list: 1 x Power Adapter Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Review: Not protected from short circuit as advertised - not protected from short circuit as advertised. I had an accidental short circuit preparing to charge my electric drill and it just burnt. not recommended Review: Very good charger - Very good ## Features - Wide voltage input, support universal standards AC input voltage within 100-240V. - Made of environmental-friendly material, and anti-interference, to use. - Built-in stable performance chips, the battery from overheat, overcharging, over current, and short circuit. - Professional lithium-ion battery , to replace your broken or lost one, widely used for headlight, toy car, balance car, and more. - High efficiency, and fast for charging, 2A large current output. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09LV1FPGD | | Additional Features | Fireproof | | Amperage | 2 Amps | | Best Sellers Rank | #6,458 in Electronics ( See Top 100 in Electronics ) #36 in AC Adapters | | Brand | Bewinner1 | | Built-In Media | Battery, Charger, Adapter, Battery Charger, Toy, Light | | Compatible Devices | headlight, toy car, balance car | | Compatible devices | headlight, toy car, balance car | | Connectivity Technology | Proprietary 5.5 * 2.5mm | | Connector Type | Proprietary 5.5 * 2.5mm | | Connector type | Proprietary 5.5 * 2.5mm | | Country of Origin | China | | Current Rating | 2 Amps | | Customer Reviews | 4.0 out of 5 stars 21 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene | | Frequency Range | 50-60 Hz | | Included components | Battery, Charger, Adapter, Battery Charger, Toy, Light | | Input Voltage | 240 Volts | | Input voltage | 240 Volts | | Main Power Connector Type | 2 pin | | Mounting Type | Wall Mount | | Number of Items | 1 | | Output Current | 2 Amps | | Output Voltage | 21 Volts | | Portable | No | | Power Plug | Type A - 2 pin (North American) | | Power Source | Battery Powered | | Special features | Fireproof | | Specification Met | CE | | Unit Count | 1 Count | | Wattage | 21 watts | ## Product Details - **Brand:** Bewinner1 - **Connector type:** Proprietary 5.5 * 2.5mm - **Compatible devices:** headlight, toy car, balance car - **Included components:** Battery, Charger, Adapter, Battery Charger, Toy, Light - **Special features:** Fireproof - **Input voltage:** 240 Volts - **Amperage:** 2 Amps - **Wattage:** 21 watts - **Number of Items:** 1 - **Output current:** 2 Amps ## Images ![AC 100‑240V Lithium‑ion Battery , DC 21V 2A Power Supply Adapter, Fireproof, 5.5 * 2.5mm Output Port, Black Power Supply Adapter, Fast for Charging(British regulatory) - Image 1](https://m.media-amazon.com/images/I/71+PnkWaAWS.jpg) ## Customer Reviews ### ⭐ Not protected from short circuit as advertised *by D***. on 12 July 2023* not protected from short circuit as advertised. I had an accidental short circuit preparing to charge my electric drill and it just burnt. not recommended ### ⭐⭐⭐⭐⭐ Very good charger *by M***H on 8 October 2022* Very good ### ⭐⭐⭐⭐⭐ Great *by S***S on 18 February 2023* V. Good. ## Frequently Bought Together - Bewinner1 AC 100‑240V Lithium‑ion Battery , DC 21V 2A Power Supply Adapter, Fireproof, 5.5 * 2.5mm Output Port, Black Power Supply Adapter, Fast for Charging(British regulatory) - AIPL Cross Filament Strapping Tape, 1 Roll 2 Inch x 50 Meter, Heavy Duty Transparent Reinforced Fiberglass Tape. --- ## 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.us/products/392389269-ac-100-240v-lithium-ion-battery-dc-21v-2a-power](https://www.desertcart.us/products/392389269-ac-100-240v-lithium-ion-battery-dc-21v-2a-power) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-03*