18V/21V Battery Pack Dual USB Adapter with LED Indicator
18V/21V Battery Pack Dual USB Adapter with LED Indicator
Power Your Devices Anywhere with Your Existing 18V/21V Battery Pack
Transform your compatible 18V or 21V power tool battery into a versatile USB charging hub with this compact Battery Pack Power Adapter. Whether you're working in the garage, setting up camp, or simply need a backup charging option away from a wall outlet, this adapter lets you tap into your existing battery ecosystem to keep your phones, tablets, and small electronics charged and ready.
Key Features
- Dual USB Output: Two USB ports let you charge multiple small devices simultaneously — ideal for workshops, camping trips, and on-the-go power needs.
- LED Status Indicator: Built-in LED light gives you a clear visual cue so you always know when the adapter is active and your devices are receiving power.
- Wide Voltage Compatibility: Supports USB output from 5V to 20V DC, making it compatible with a broad range of small electronics and charging requirements.
- Durable ABS Housing: The rugged ABS shell is built to withstand everyday workshop and outdoor handling, keeping your setup organized and protected.
- Compact & Portable Size: Measuring approximately 11 cm × 8.5 cm × 4.5 cm (4.33" × 3.35" × 1.77"), this adapter stores neatly in tool bags, drawers, or backpacks without taking up valuable space.
- Designed for 18V/21V Battery Packs: Slots directly onto compatible 18V/21V battery packs — no extra converters or accessories needed. Simply attach and start charging.
Specifications
| Compatible Battery Voltage | 18V / 21V |
| USB Output Voltage Range | 5–20V DC |
| Number of USB Ports | 2 |
| Housing Material | ABS Plastic |
| Dimensions | Approx. 11 × 8.5 × 4.5 cm / 4.33 × 3.35 × 1.77 in |
| LED Indicator | Yes |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × Battery Pack USB Adapter
Note: Battery pack is NOT included. This adapter is designed to work with your existing compatible 18V/21V battery.
Perfect For
- Workshop and garage use — charge your phone while you work without hunting for a wall outlet
- Camping and outdoor adventures — leverage your tool battery as an off-grid power source
- Emergency backup charging at home or on job sites
- Travel prep and portable power setups
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: Which battery packs is this 18V/21V USB adapter compatible with?
A: This battery adapter is designed for compatible 18V and 21V power tool battery packs. It is intended for use with slide-style battery packs that match its terminal layout. Please compare the connector design with your existing battery pack before purchasing to ensure compatibility.
Q: How many devices can I charge at once with this battery pack USB adapter?
A: The adapter features dual USB output ports, allowing you to charge two devices simultaneously — such as a smartphone and a tablet or a pair of small camping electronics — as long as your battery pack has sufficient charge.
Q: Is the battery pack included with this adapter?
A: No, the battery pack is not included. This adapter is sold on its own and is intended to work with a compatible 18V/21V battery pack you already own. This makes it a cost-effective way to expand the utility of your existing battery tool ecosystem.
Q: What does the LED indicator light do on this USB battery adapter?
A: The built-in LED indicator illuminates when the adapter is connected to a battery pack and actively providing power through the USB ports. It gives you a quick, at-a-glance status check so you always know your devices are being charged.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.