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Qiilu

21V 2A Lithium Battery Charger, 21 Volt Power Adapter for Headlight, Toy Car, Balance Car - AC 100-240V Adapter with LED Indicator (US Plug 50Hz/ 60Hz)

  • Based on 43 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Sep 6
Order within 5 hours and 32 minutes
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Features

  • Universal Charger for Multiple DevicesThis 21V 2A power adapter is a fast, charging solution to replace lost or broken chargers. It a wide range of 21V devices, from power tools like electric drills and wrenches to balance cars, toy cars, and LED headlamps. Enjoy the convenience of one charger for all, eliminating clutter and the need for multiple units.
  • High-Efficiency 2A Charging & Smart ProtectionWith a 2A high-current output, this charger delivers efficient and noticeably faster power replenishment compared to standard 1A adapters. Built-in intelligent circuitry provides comprehensive safety protections, including defense against over-charging, over-current, short circuits, and overheating, ensuring both rapid and completely safe charging for your devices.
  • US Plug & Easy Plug-and-PlayThis adapter comes with a standard US plug for instant use in any outlet. With its wide voltage input (100-240V), it's also travel-readysimply use a basic plug converter for worldwide compatibility. Just connect the 5.5*2.5mm DC plug (fits 5.5*2.1mm ports) to power your device.
  • Clear LED Indicator & Durable, Portable DesignStay informed with the intuitive LED indicator: a red light means charging is in progress, and a solid green light signals a full charge. Housed in a compact, durable ABS shell with a reinforced cable, this charger is both rugged enough for daily use and portable enough to take anywhere you need reliable power.
  • Reliable Power SupplyEngineered with safety as the priority, this adapter uses high-quality, flame-retardant materials and stable performance chips to ensure consistent and clean power delivery. It acts as a dependable and versatile AC/DC power supply adapter for your various 21V lithium-ion battery-powered gadgets, giving you peace of mind with use.

Brand: Qiilu


Connector Type: 2-Pin


Compatible Devices: for headlight, toy car, balance car, and more


Compatible Phone Models: Apple iPhone 5S


Included Components: Power Adapter


Special Feature: Short Circuit Protection


Color: Black


Input Voltage: 240 volts


Amperage: 2 A


Total USB Ports: 1


Connector Type: 2-Pin


Compatible Devices: for headlight, toy car, balance car, and more


Compatible Phone Models: Apple iPhone 5S


Special Features: Short Circuit Protection


Input Voltage: 240 volts


Amperage: 2 A


Total Usb Ports: 1


Wattage: 42 watts


Output Current: 2 A


Output Voltage: 21 volts_of_direct_current


Power Source: Corded Electric


Current Rating: 2 A


Frequency Range: 50-60 Hz


Main Power Connector Type: 2 Pin


Number of Power Levels: 1


Current: DC


Compatible Power Plug Type: Type A - 2 pin (North American)


Plug Type: A- US style


Connectivity Technology: DC Barrel


Mounting Type: Wall Mount


Brand: Qiilu


Built-In Media: Power Adapter


Model Number: Qiiluud0f2e4t3o


Mfr Part Number: Qiiluud0f2e4t3o


Manufacturer: Qiilu


Number of Items: 1


Unit Count: 1 Count


Color: Black


Enclosure Material: Acrylonitrile Butadiene Styrene


Form Factor: Plug


Specification Met: CE


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great replacement
Needed a replacement charger for my drill after the seller refused to send me a new one under warranty. This one works great. Even has a little light to let you know when it's charged
Reviewed in the United States on August 25, 2026 by Kiersten Duncan
    • Fast Charging
It's a great charger. Fast charging.
Reviewed in the United States on June 22, 2026 by Myloe Smith
    • Works and charges 21v batteries at 2 amps, more power faster charging.
The led light indicator red light means charging, green means fully charged. The red led is very dim, my only complaint. It charges much faster than the 1 amp factory chargers. Good charger. It Fully charges 21v Makita style Chinese batteries for lower priced Chinese tools.
Reviewed in the United States on November 4, 2024 by Aaron M. Smith
    • Make sure you check all your options
My fault but this item did not fit my need. It was wider and useless for me. Eventually I managed to find one that had an optional pin plug that this did not.
Reviewed in the United States on April 24, 2026 by buyer
    • Convenient to use and arrived right on time
Fast delivery good product
Reviewed in the United States on June 21, 2024 by channing w.
    • Works great
The power cord charge works great!
Reviewed in the United States on January 5, 2026 by Amazon Customer
    • Calidad garantizada
Muy buena calidad
Reviewed in the United States on May 22, 2026 by Tayla
    • Charged power washer batteries
I bought this charging cord because the charging cord that came with a new power washer did not work. It was easier to purchase a new charging cord than return the power washer.
Reviewed in the United States on August 2, 2025 by Susan D.

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