UIRSTY 200W Power Inverter for Makita 18V Battery - Portable 110V

In this review the UIRSTY 200W Power Inverter for Makita 18V Battery is evaluated as a compact emergency power solution for DIYers, campers, and anyone who owns Makita 18V lithium batteries. The bottom line: it converts a Makita 18V battery into a useful AC and USB power source, making it handy for charging phones, running small tools or laptop adapters, and providing light during outages. The unit's strongest single selling point is its wide compatibility with Makita 18V Max batteries combined with a true 200W DC 20V to AC 110-120V inverter output.

Key Features

• Wide compatibility: Works with a broad range of Makita 18V Max lithium-ion batteries such as BL1860, BL1850, BL1840, BL1830 and others, so you can use batteries you already own.
• 200W AC output: The inverter provides a 20V DC to 110-120V AC outlet capable of powering small electronics and appliances up to about 200W for portable use and short-term backup.
• Multiple charge ports: Includes one AC outlet, one USB A port and one 18W Type-C port for charging phones, tablets and accessories without needing an additional adapter.
• Built-in cooling: A fan and stable cooling system are integrated to maintain performance and reduce thermal shutdown risk during heavier use.
• LED light: A built-in 200LM LED provides an added light source useful for outdoor tasks or emergency situations.
• Safety certifications: CE and ROHS certification with short circuit protection adds a layer of reliability for everyday portable power needs.

Who It's For

The inverter is a practical choice for homeowners who already own Makita 18V batteries and want a compact way to run chargers, lights, small fans, or power tools' low-wattage accessories when there is no mains power. It also suits campers and weekenders who need a lightweight power accessory that fits existing Makita battery systems.

It is not the right device for running high-draw appliances, heavy power tools, or continuous large loads since the rated 200W inverter is intended for small electronics and intermittent use. Users who need longer runtime should look at larger battery generators or dedicated portable power stations.

Pros & Cons

Pros

• Converts common Makita 18V batteries into an AC outlet, saving the cost of a separate battery pack.
• Compact and easy to carry, suitable for toolboxes, trucks, and camping gear.
• Multiple outputs include AC, USB A and an 18W Type-C port for versatile charging.
• Includes safety features and active cooling to protect the unit and attached devices.

Cons

• Does not include a battery, so you need a compatible Makita 18V battery to use it.
• 200W limit means it cannot run larger appliances or continuous heavy loads.

Specifications

Brand	UIRSTY
Input	Makita 18V Max lithium-ion battery (20V DC)
Output (AC)	110-120V AC, 200W
USB Ports	1 USB A 5V/2.1A, 1 Type-C 18W
LED Light	200LM built-in LED
Safety	CE, ROHS, short circuit protection
Warranty	30-day money-back, 1-year warranty

Our Verdict

The UIRSTY 200W inverter is a sensible, cost-effective add-on for anyone who already owns Makita 18V batteries and needs occasional AC and USB power on the go. Its combination of wide battery compatibility, multiple charging ports, active cooling and safety certifications makes it a good value for campers, tradespeople, and homeowners seeking a compact backup option, as long as users respect the 200W output limit.

Frequently Asked Questions

Does the inverter include a Makita battery?
The product does not include a battery; you must use your own compatible Makita 18V battery such as BL1860 or BL1850.

What can I run from the 200W AC outlet?
It is suitable for phones, laptops via their adapters, small lights, fans and other low-wattage devices but not for heavy-duty power tools or large appliances.

Is the unit safe for continuous use?
It has CE and ROHS certification plus short circuit protection and a cooling fan, but continuous heavy loads near the 200W limit may trigger thermal protection.