Power Inverter for Milwaukee 18V Batteries - 200W Portable Adapter

In this review the reviewer examines a two-pack of 200W power inverters designed to convert Milwaukee 18V batteries into a compact portable power source. The bottom line: this kit is for DIYers, campers, and tradespeople who already own compatible 18V batteries and need a lightweight, multi-port inverter that can run small appliances and charge phones on the go. Its main selling point is practical versatility - two USB-A ports, a PD Type-C port and an AC outlet packed into a 0.6 lb adapter that turns an 18V battery into a grab-and-go power bank.

Key Features

• Battery compatibility: Works with a wide range of Milwaukee 18V batteries so users can reuse existing batteries without an extra power pack.
• Multiple outputs: Two USB-A ports, one Type-C PD 20W port and one 110V-120V AC outlet let you charge phones, small laptops and run compact devices at the same time.
• 200W AC inverter: The 200W DC-to-AC conversion is adequate to power lights, small fans and other low-draw electronics during outages or on job sites.
• Lightweight and portable: At about 0.6 lb the unit is easy to stow in a toolbox or pack for road trips and camping where saving weight matters.
• Built-in safety: The inverter includes a fuse and multiple protections against short-circuit, over-current, over-load and over-heat to protect connected devices.
• Integrated LED light: A 200 lumen LED with adjustable direction and three brightness levels adds a practical work or camp light function.

Who It's For

This product suits people who already own Milwaukee 18V batteries and want a compact way to power small devices without buying a full power station. It is particularly useful for tradespeople needing a quick AC outlet on site, campers wanting phone and light charging from a battery, and anyone facing occasional power outages who needs lightweight backup power.

Those who should look elsewhere include users who need high continuous AC power for appliances above 200W, or buyers who do not own compatible 18V batteries, since batteries and charging cables are not included. For sustained high-load use a larger dedicated power station or inverter is a better fit.

Pros & Cons

Pros

• Compact multi-port layout lets you charge several devices simultaneously without bulky adapters.
• Lightweight and easy to carry, making it a solid companion for camping, travel or job sites.
• Good safety suite with fuse and protections helps prevent damage to batteries and devices.
• Two-pack provides redundancy or the ability to have one in the vehicle and one in a toolkit.

Cons

• Not a replacement for a full power station; limited to about 200W so it cannot run larger appliances.
• Battery and charging cables are not included, so initial setup requires compatible batteries and cables purchased separately.

Specifications

Product type	200W DC 18V to AC 110V-120V inverter
Battery compatibility	Milwaukee 18V M18 series (examples: 48-11-1820, 48-11-1840, 48-11-1860)
USB outputs	2 x USB-A DC 5V/2.1A
Type-C output	PD 20W 5V/2.1A
AC outlet	110V-120V single AC outlet
LED light	200 lumen, 3 brightness levels, 85 degree adjustable direction
Weight (each)	Approximately 0.6 lb

Our Verdict

The two-pack 200W inverter is a practical, good-value accessory for anyone already invested in Milwaukee 18V batteries. It converts existing batteries into a versatile, portable power source with multiple charging ports and a built-in LED, making it ideal for light-duty power needs on job sites, during travel, or in brief outages. It is not intended to replace larger power stations, but for its size and safety features it offers solid utility at a modest price.

Frequently Asked Questions

Will this run a lamp or small fan?
Yes, the 200W AC output can run low-draw devices such as small lamps and fans within the 200W limit.

Are batteries included?
No, batteries and any USB or Type-C cables are not included; you must supply compatible Milwaukee 18V batteries.

Does it protect my devices?
Yes, the unit has a built-in fuse and protections for short-circuit, over-current, over-voltage, under-voltage, over-heat and over-load.