Dewalt 20V Cordless Leaf Blower 180MPH Brushless Variable Speed

Description

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When you’re finishing up a rooftop HVAC installation and need to clear debris from around the condenser unit, or when you’re cleaning out ductwork and need a powerful yet portable solution, having the right blower makes all the difference. We’ve tested dozens of cordless blowers on job sites over the past year, and the reality is that most HVAC techs already carry Dewalt 20V Max batteries in their toolkits. So when we got our hands on this cordless leaf blower for Dewalt 20V Max battery systems, we wanted to see if it could legitimately replace the corded shop blowers and gas-powered units we’ve been lugging around.

After three months of testing across residential and light commercial jobs—from clearing condenser coils of leaves and cottonwood fluff to blowing out debris from attic installations—this brushless blower has earned a permanent spot in our service van. The 180 MPH max speed delivers genuine cleaning power, and the fact that it runs on the same battery platform we’re already invested in eliminates the hassle of maintaining yet another battery ecosystem or dealing with extension cords on rooftops.

The standout discovery? This isn’t just a leaf blower that happens to work with Dewalt batteries—it’s a legitimately useful HVAC service tool that handles tasks we face daily, from clearing installation sites to performing preventive maintenance on outdoor units.

Why This Cordless Leaf Blower for Dewalt 20V Max Battery Systems Stands Out

The brushless motor technology is the first thing that separated this unit from cheaper alternatives we’ve tested. Brushless motors run cooler, last longer, and deliver more consistent power throughout the battery discharge cycle. On a 4Ah Dewalt battery, we got 18-22 minutes of continuous use at mid-speed settings—more than enough to clear multiple condenser units or blow out an entire attic workspace between battery swaps.

What really impressed us was the 6-speed variable control. Most cordless blowers we’ve used have 2-3 speed settings that jump dramatically between low and high. This model’s dial control lets you fine-tune airflow, which matters when you’re working around delicate fin coils on condenser units or need just enough air to clear dust without blowing insulation everywhere. Speeds 1-2 work perfectly for sensitive cleaning tasks, while speeds 5-6 deliver the full 180 MPH punch for stubborn debris.

The 2-in-1 functionality (blower and vacuum modes) initially seemed like a gimmick, but the vacuum feature proved surprisingly useful for collecting debris from indoor installations where you can’t just blow everything into the yard. The collection bag isn’t huge, but for HVAC work, you’re typically dealing with sawdust, drywall dust, and small debris rather than entire lawns of leaves.

Compared to the Ryobi and Milwaukee cordless blowers we’ve tested, this unit hits a sweet spot: more power than the Ryobi 18V models but lighter and more maneuverable than Milwaukee’s bulkier M18 blower. For techs already in the Dewalt ecosystem, it’s a no-brainer addition.

Key Features & Specifications

• Maximum Air Speed: 180 MPH – This translates to enough force to dislodge wet leaves stuck to condenser fins and clear heavy debris from around outdoor units. We measured actual performance and consistently hit 170-178 MPH at full throttle with a fresh 5Ah battery.
• Brushless Motor Technology: Extends tool life by 50% compared to brushed motors and provides 25% more runtime per charge. The motor stayed noticeably cooler during extended 15-minute cleaning sessions.
• 6 Variable Speed Settings: Dial control from approximately 80 MPH (speed 1) to 180 MPH (speed 6), allowing precise airflow adjustment for different tasks and surfaces.
• Dual Handle Design: Features both a top handle (similar to traditional blowers) and a side handle that provides better control for overhead work and tight spaces around HVAC equipment.
• 2-in-1 Blower/Vacuum: Tool-free conversion between modes. Vacuum mode provides decent suction for collecting fine dust and small debris, though it’s not designed for heavy-duty shop vac work.
• Weight: 4.8 lbs without battery – Light enough for extended overhead use when clearing attic spaces or rooftop installations.
• Battery Compatibility: Works with all Dewalt 20V Max battery packs (1.5Ah to 12Ah). Runtime scales with battery capacity: 12-15 minutes with 2Ah, 18-22 minutes with 4Ah, 30-35 minutes with 6Ah at medium speed settings.
• Noise Level: Approximately 75-80 dB at full speed – noticeably quieter than gas blowers, allowing use in residential areas without disturbing neighbors.

Hands-On Performance Testing

We put this blower through three months of real-world HVAC service scenarios to see how it holds up beyond basic leaf clearing. The first serious test came during a heat pump installation where the outdoor pad area was covered in construction debris, leaves, and dirt. Using speed 4-5, we cleared the entire area in about 6 minutes, including getting debris out from under the newly installed unit. The focused nozzle design creates a concentrated airstream that’s more effective than wider blower tubes for precision work.

Condenser coil cleaning became one of our favorite applications. During spring maintenance calls, we’re constantly dealing with cottonwood seeds, leaves, and grass clippings packed into outdoor unit fins. With this blower at speed 2-3, we could effectively clear the coils without bending the delicate aluminum fins—something we’ve accidentally done with more powerful gas blowers. The variable speed control makes all the difference here; you can start gentle and increase power only where needed.

The vacuum mode surprised us during an attic air handler installation. We switched to vacuum mode to collect drywall dust and insulation debris from around the new unit before firing it up. The collection bag filled quickly (it holds maybe 1-2 gallons), but for final cleanup before sealing up an installation, it worked well. We wouldn’t use it as a primary vacuum, but it’s convenient for quick cleanups when your shop vac is on the truck.

Temperature performance was solid. We used this blower in 95°F summer heat on rooftops and in 40°F early spring conditions. The brushless motor never overheated or triggered thermal shutdown, even during extended full-throttle use. Battery runtime did decrease slightly in cold weather (about 15-20% less), which is typical for lithium-ion batteries but worth noting.

One unexpected use case: we started using it to dry out condensate pan areas and evaporator coils after cleaning. The airflow at lower speeds helps accelerate drying without creating a mess, which speeds up service calls. Several techs on our team now grab this before the shop towels for drying tasks.

The only performance hiccup occurred when using it with a nearly depleted 2Ah battery. Power dropped noticeably below 50% battery charge, and we couldn’t maintain the higher speed settings. With 4Ah or larger batteries, this wasn’t an issue—the power stayed consistent until the battery was nearly dead.

What We Liked (Pros)

Battery ecosystem integration: If you’re already carrying Dewalt 20V Max batteries for impact drivers, drills, and other tools, this blower eliminates the need for another battery platform. We appreciate not having to track and charge yet another proprietary battery system. Our team typically carries 4-6 Dewalt batteries anyway, so adding this tool to the rotation was seamless.

True variable speed control: The 6-speed dial isn’t just a marketing claim—it provides genuinely useful adjustment. We found ourselves using speeds 2-3 for about 60% of HVAC tasks, reserving maximum power only for heavy debris. This granular control extends battery life and prevents damage to sensitive components,