Finding a reliable 18V to 120V power inverter is essential for users needing to convert battery power into standard AC power for outdoor activities, emergencies, or travel. These inverters work with popular 18V lithium-ion batteries from brands like Milwaukee, Ryobi, Makita, and more, offering USB and AC outlets to power multiple devices. The following summary table highlights top products compatible with various batteries, their wattage, port options, and added features to help you choose the best fit for your needs.
| Product Name | Battery Compatibility | Power Output | Ports | Additional Features |
|---|---|---|---|---|
| Mightrench 220W Power Inverter | Milwaukee 18V | 220W | 2 USB (QC18W), 1 Type-C (PD30W), 1 AC outlet | 400-Lumen LED Light with modes and adjustable angles |
| LIVOWALNY 2-Pack Power Inverter | Ryobi 18V lithium-ion | 200W | 2 USB-A, 1 Type-C (PD20W), 1 AC outlet | Compact, LED light (200 lumens), multi-device charging |
| VoLtTech 200W Power Inverter | Ryobi 18V | 200W | 2 USB, 1 Type-C, 1 AC outlet | Versatile charging options for phones, laptops, tablets |
| LIVOWALNY 200W Power Inverter for Makita | Makita 18V Lithium-Ion | 200W | 2 USB, 1 Type-C, 1 AC outlet | Portable power station with multifunctional ports |
| eleellaya 200W Power Inverter for Makita | Makita 18V | 200W | 2 USB, 1 Type-C, 1 AC outlet | LED illumination, wide battery compatibility |
Mightrench 220W Power Inverter for Milwaukee 18V Battery

This 220W inverter converts 18V DC from Milwaukee batteries to AC 110-120V, suitable for powering phones, laptops, fans, and more. It has two fast-charging USB ports (one 18W QC and one 30W PD Type-C) plus a 110-120V AC outlet, making it great for multiple device charging. The 400-lumen LED light features adjustable brightness and a strobe mode, useful for emergencies or low-light work. Designed for outdoor or emergency power needs, this unit requires compatible Milwaukee batteries, which are not included.
LIVOWALNY 2-Pack 200W Inverter for Ryobi 18V Batteries

Ideal for Ryobi 18V lithium-ion batteries, this set of two inverters combines portability and power. Each inverter delivers 200W AC output and multiple charging ports including two USB-A, one Type-C (20W PD), and an AC outlet. The integrated 200-lumen LED light adds utility for outdoor excursions or emergencies. Lightweight and compact, these inverters power phones, laptops, cameras, and more, making them versatile for camping or daily backup power.
VoLtTech 200W Power Inverter Compatible with Ryobi 18V Battery

This inverter works with a variety of Ryobi 18V lithium-ion batteries and provides 200W AC output. The unit also offers two USB ports and one Type-C port for fast and versatile device charging. Perfect for outdoor and emergency scenarios, it powers phones, laptops, lights, and other devices reliably without needing an external power source. Batteries are sold separately.
LIVOWALNY 200W Power Inverter Compatible with Makita 18V

Designed for Makita 18V lithium batteries, this 200W inverter turns battery power into AC 110-120V electricity, supporting phones, tablets, laptops, cameras, and lights. Included are dual USB ports and a 20W Type-C charging port. Its portable design makes it suitable for off-grid use, power outages, and outdoor activity, with no need for external power other than your battery pack.
eleellaya 200W Power Inverter for Makita 18V Batteries

This compact inverter supports a wide range of Makita 18V batteries for powering small devices like phones, tablets, and fans on the go. It converts 18V DC to 110V AC power and includes a USB Type-C port along with regular USB and AC outputs, offering versatile charging options. It also provides convenient LED illumination for use in dark environments, making it useful for nighttime or emergency scenarios.
Buying Guide: Choosing The Right 18V to 120V Power Inverter
When selecting the best 18V to 120V power inverter for your needs, consider these key factors to ensure reliable and efficient power conversion:
Battery Compatibility
Ensure the inverter is compatible with your specific brand and model of 18V lithium-ion batteries. Popular brands include Milwaukee, Ryobi, Makita, and DeWalt. Using an inverter designed for your batteries guarantees proper voltage matching and optimal performance.
Power Output
Assess the wattage requirements of the devices you intend to power. Most portable inverters range from 200W to 350W, sufficient for small electronics like phones, laptops, LED lights, and low-power tools. Avoid exceeding rated wattage to prevent damage or shutdown.
Output Ports and Charging Versatility
Look for multiple output options including AC outlets for traditional plugs, USB-A ports for common device charging, and USB-C ports offering fast charging protocols such as Power Delivery (PD). This allows simultaneous charging of multiple devices and variety in adapters.
Additional Features & Portability
Many inverters come with built-in LED work or emergency lights, often with adjustable brightness and modes (e.g., strobe). Portability can be crucial for outdoor use; consider weight, size, and durability. Some models come as multi-packs for added convenience.
Safety and Protection
Check for built-in safety features like overload protection, short circuit prevention, and overheat protection to safeguard both your devices and the inverter itself.
Use Case Scenarios
Determine if you need the inverter primarily for camping, emergency backup, or everyday portable power. Some inverters emphasize ruggedness and lighting, while others focus on maximum output and fast charging capabilities.