300W Power Inverter DC 18V-21V to AC 220V | DeWalt Makita
300W Power Inverter DC 18V-21V to AC 220V | DeWalt Makita
300W Lithium Battery Power Inverter – DC 18V–21V to AC 220V
Take your power tool batteries beyond the job site. This compact 300W peak power inverter converts the DC 18V–21V output of your DeWalt, Makita, or Milwaukee lithium battery packs into standard AC 220V power — so you can run small appliances, charge devices, and power LED lighting virtually anywhere. With dual USB ports and a QC 3.0 fast-charge port, it's the ultimate portable power companion for outdoor work, camping, and emergency use.
Key Features
- Universal Compatibility: Designed to fit DeWalt (yellow), Makita (blue), and Milwaukee 18V–21V lithium battery packs — no additional adapters needed.
- 300W Peak / 120W Continuous Output: Handles a wide range of small appliances including phones, laptops, tablets, small fans, LED lights, and more.
- QC 3.0 Fast Charging: One dedicated Qualcomm Quick Charge 3.0 port plus two standard USB ports deliver rapid, efficient charging for all your devices simultaneously.
- 8-Layer Smart Safety Protection: Built-in intelligent chip automatically manages current and voltage distribution, with over-temperature protection and constant-temperature charging for worry-free operation.
- Convection Heat Dissipation: Innovative passive cooling design keeps the unit running cool even during extended use — no noisy fans required.
- Ultra-Portable Design: Compact ABS shell measuring just 81 × 81 × 60 mm and lightweight construction make it easy to toss in your toolbag or backpack.
- Wired Connection: Simple plug-in connection directly to compatible battery packs — no complex installation.
Specifications
| Peak Power | 300W |
| Continuous Power | 120W |
| Input Voltage | DC 18V – 21V |
| Output Voltage | AC 220V |
| Output Frequency | 50 Hz |
| Quiescent Current | 0.05A |
| USB Ports | 2× Standard USB + 1× QC 3.0 |
| Shell Material | ABS |
| Dimensions | 81 × 81 × 60 mm (3.19 × 3.19 × 2.36 in) |
| Color Options | Yellow (DeWalt), Red/Blue (Makita) |
| Country of Origin | Made in China |
What's in the Box
- 1 × 300W Power Inverter
- 1 × User Manual
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Frequently Asked Questions
Q: Which power tool batteries are compatible with this 300W inverter?
A: This inverter is compatible with 18V–21V lithium battery packs from DeWalt, Makita, and Milwaukee. It is available in color-matched versions — yellow for DeWalt and red/blue for Makita — ensuring a secure and reliable connection with your existing battery packs.
Q: What devices can I run with this 120W continuous / 300W peak power inverter?
A: The inverter supports any small appliance drawing up to 120W continuously (300W peak). Common uses include charging smartphones, laptops, tablets, powering small fans, LED work lights, and other compact electronic devices — making it ideal for outdoor job sites, camping, and emergency preparedness.
Q: Does this power inverter include fast charging for USB devices?
A: Yes! The inverter features two standard USB ports plus one dedicated Qualcomm QC 3.0 port, allowing you to fast-charge compatible smartphones and devices significantly faster than standard USB charging while simultaneously converting AC power for other appliances.
Q: Is this inverter safe to use for extended periods?
A: Absolutely. The unit is equipped with an 8-layer intelligent safety protection system that automatically regulates current and voltage, while the convection heat dissipation design keeps operating temperatures in check during prolonged use — all without the need for an internal fan.
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.