550W Pure Sine Wave Inverter – for 18V-21V Makita DeWalt Bosch Batteries

Out at a job site, on the road, or during a power cut and still need a wall outlet? This 550W pure sine wave inverter turns your 18V-21V power tool batteries into clean AC power - enough to run chargers, small tools, work lights, laptops and more.

• 550W continuous output on a quiet pure sine wave
• Runs off 18V-21V lithium batteries from Makita, DeWalt, Bosch and similar systems
• Choose 110V (US-style) or 220-240V (EU/UK-style) output
• Overload, over-temperature, over-discharge and short-circuit protection
• Portable, tool-box friendly design

Specs at a glance

Pure sine wave, so your gear is happy

Unlike cheap modified square-wave inverters, pure sine wave output is smooth and stable - which is important for anything with electronics, from tool chargers to laptops.

Frequently Asked Questions

Which batteries does it take?

It is built for common 18V-21V lithium power tool batteries, including those from Makita, DeWalt and Bosch.

What can 550W run?

Small power tools, chargers, work lights, laptops, phone chargers and similar loads within the 550W continuous rating.

110V or 220-240V - which do I need?

Pick the voltage and plug standard for your country. 110V for US/Japan, 220-240V for EU/UK/AU.

Is it safe for electronics?

Yes - pure sine wave output is safer for sensitive electronics than modified square-wave inverters.

Warranty and Support

Backed by a 12-month warranty and a 30-day money-back return policy. If anything is off, our support team sorts it out - no hassle.