300W Portable Inverter for Makita Milwaukee DW 18V/20V Batteries

300W Portable Battery Inverter – Compatible with Makita, Milwaukee & DW 18V/20V Li-Ion Batteries

Turn your existing 18V or 20V cordless tool batteries into a versatile portable power station. This compact 300W DC-to-AC inverter converts battery power into stable 110V–120V AC electricity, giving you two AC outlets and three USB ports wherever you are — on the job site, at the campground, or during a power outage. No generator required, no complicated setup — just snap in your battery and go.

Made in Mainland China.

Key Features

• Wide Battery Compatibility: Works with Makita 18V, Milwaukee M18, and DW/DeWalt 20V MAX lithium-ion batteries — use the batteries you already own.
• 300W Continuous Output: Advanced DC-AC inverter technology delivers a steady 110V–120V AC output up to 300W, suitable for charging laptops, phones, tablets, and powering small appliances.
• 2 AC Outlets + 3 USB Ports: Charge and power multiple devices simultaneously — ideal for outdoor work, camping, and multi-device setups.
• Plug-and-Play Operation: No tools or installation needed. LED indicators provide real-time status so you always know your power level at a glance.
• Built-In Safety Protections: Overload, short-circuit, and over-temperature protection keep your devices and battery safe in demanding environments.
• Lightweight & Compact: Easy to carry to construction sites, worksites, or weekend adventures without adding bulk to your gear bag.

Battery Compatibility Details

• DeWalt (DW) 20V MAX: DCB206, DCB205, DCB204, DCB181, DCB182, DCB200, DCB203, DCB205-2, DCB204-2, DCB206-2, and more.
• Milwaukee M18 18V: 48-11-1820, 48-11-1822, 48-11-1840, 48-11-1850, 48-11-1852, 48-11-1860, 48-11-1862, and more.
• Makita 18V: BL1815, BL1820, BL1830, BL1840, BL1850 series, and more.

Note: Battery not included. Compatible with 18V/20V Li-Ion batteries only.

Specifications

• Input Voltage: DC 18V / 20V (Li-Ion battery)
• Output Voltage: AC 110V–120V
• Maximum Output Power: 300W
• Ports: 2 × AC Outlets, 3 × USB Ports
• Material: Plastic
• Available Colors: Blue, Red, Yellow

Package Contents

• 1 × 300W Battery Inverter Adapter

For more information on electrical safety standards for portable power inverters, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: Which batteries are compatible with this 300W portable inverter?

A: This inverter is compatible with 18V and 20V lithium-ion batteries from Makita (BL1815–BL1850 series), Milwaukee M18 (48-11-1820 through 48-11-1862 series), and DeWalt 20V MAX (DCB181–DCB206 series). Please note that batteries are not included with the inverter.

Q: What devices can I power with this 300W battery inverter?

A: With 300W of continuous AC output and both AC outlets and USB ports, you can charge and run smartphones, tablets, laptops, small fans, LED lights, and other small appliances. It's especially useful on outdoor job sites, camping trips, or anywhere reliable AC power is needed without access to a wall outlet.

Q: Is this inverter safe to use indoors and on construction sites?

A: Yes. The inverter includes built-in overload, short-circuit, and over-temperature protection circuits, making it suitable for use in a variety of environments including homes, workshops, and active construction sites. LED status indicators help you monitor operation in real time for safe, confident use.

Q: How do I set up and use this portable power inverter?

A: Setup is plug-and-play. Simply slide your compatible 18V or 20V Li-Ion battery into the inverter's battery slot, press the power button, and you're ready to plug in your devices. No wiring, tools, or technical installation is required.