My Greenworks 40V leaf blower review verdict is a buy for paths, patios and small lawns when you already own a 40V Greenworks battery, and a pass when you want a blower that ships with its own. This 500 CFM model is sold tool only, so the box holds the blower and a manual, with no battery and no charger. I use a light blower for the small jobs around our house: the concrete path to the door, the porch and the wood-chip paths beside the vegetable plot. Below I cover what to add, power, runtime, care and the alternatives.
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Greenworks 40V Leaf Blower Review: My Verdict on the 500 CFM Model
I recommend the 500 CFM Greenworks for a porch, paths and a lawn of up to about a quarter acre, cleared with a pack or two. It weighs 4.6 lb without the battery, and the cost of entry drops when a 40V pack from another Greenworks tool already sits on your shelf. Skip it if you have no 40V battery, or if wet leaf mats and a full acre are the job.
- Who it is for: owners of a Greenworks 40V battery who sweep paths, patios and small lawns.
- What it does best: it lifts dry leaves and clippings from a light tool.
- The main trade-off: up to 18 minutes on high from a 2.5 Ah pack, and the battery and charger are extra.
What Tool Only Means and What You Still Have to Buy
Tool only means the box holds the blower and its manual. The battery and the charger are separate purchases from the 40V line.
If you own a Greenworks 40V trimmer or mower, you have what it needs: any Greenworks 40V battery fits, and a Greenworks 40V blower bought bare costs only the tool. A buyer with no 40V gear pays for the pack and the charger too, and a kit with everything in one box is then the easier route.
Greenworks quotes its runtime for a 2.5 Ah pack, so I treat that size as the reference, and a larger 40V pack buys more minutes. Read the title before you order, and check on the listing what the box holds. The Greenworks 40V leaf blower tool only listing says Tool Only in its name, and a separate listing sells the same blower in a kit with a 2.5 Ah pack.
Specs and What the Numbers Mean
The maker’s model number for this blower is Greenworks BL40B02. Two rows carry the decision: 500 CFM and 120 mph set what it can move, and the runtime row sets how long it keeps moving.
| Spec | Figure |
|---|---|
| Airflow, maker’s figure | 500 CFM |
| Air speed, maker’s figure | 120 mph |
| Weight without battery | About 4.6 lb |
| Battery | Any Greenworks 40V pack, sold separately |
| Runtime on high, maker’s figure | Up to 18 minutes with a fully charged 2.5 Ah pack |
| Controls | Variable-speed trigger, turbo button, cruise control lever |
| Blowing force | Not published |
| Warranty | 3 years, personal use only |
Treat 500 CFM and 120 mph as peak figures, because Greenworks names no nozzle or mode for them and prints no blowing force. I judge strength on the job.
Setup and First Use
This Greenworks 40V cordless leaf blower goes together without tools, in three steps.
- Join the tube to the housing until the latch locks.
- Slide the battery into its compartment until it clicks.
- Squeeze the trigger; a harder pull gives more speed.
Greenworks tells you to check that the tube is secure before every use, so I give the joint a tug each time. The turbo button jumps to top speed, and the cruise control lever locks a speed so the trigger can rest: pull it clockwise to lock and counter-clockwise to lower the speed. Turn it down to zero and the motor stops, so I restart it with the trigger. With work gloves on, the cushioned grip keeps the trigger and the turbo button under my finger and thumb without a stretch.
How It Performs on Leaves, Lawn and Gravel
At 500 CFM and 120 mph this is a light-duty blower, and I use it as one.
Dry Leaves and Grass Clippings
Dry leaves, grass clippings and light litter move well. The stream is broad, so the 4-foot path to our house door is cleared across its width as I walk it. Greenworks advises working around the outer edge of a pile and raking heavy debris first, and I follow both.
On the wood-chip paths beside the vegetable plot I hold the trigger partway, because full speed strips the mulch. Turbo stays for the one stubborn clump at the foot of the steps.
Wet Leaves and Hard Surfaces
Wet leaves stick by surface tension, so they need volume under the edge, and 500 CFM carries less of it than the 650 CFM class. A thin damp layer at the foot of our hedgerow shifted only at its edge under this blower, and I raked the rest. Greenworks also rules out use in rain and on wet surfaces, so I wait for the ground to dry.
Gravel and Loose Stone
Gravel beds are a poor match for this blower. At the edge of our crushed-stone yard I lift dry leaves off the stones at low speed, with the tube held low at a shallow angle. I check that no person and no window sits in line with the stream, because loose stone leaves the surface fast, and a reader with gravel beds to clear should skip this tool.
Greenworks 40V Leaf Blower Runtime, Batteries and Charging
According to Greenworks, a fully charged 2.5 Ah pack runs the blower up to 18 minutes on high, and with the kit’s charger the same pack refills in 75 minutes. Turbo drains the pack faster than any other setting.
A quarter acre of lawn and drive can need more than one pack, and the practical fix is a second 40V pack: one runs while the other charges.
Cold shortens the run, because lithium-ion cells deliver less energy at low temperatures (1). On a frost morning I keep the pack indoors until I start, and I charge it indoors too. Greenworks says not to charge outdoors, and charging a lithium-ion battery below freezing can plate metal onto the anode and raise the risk of failure (2).
Noise, Weight and Comfort
Greenworks gives no sound figure for this blower, so I do not call it quiet. NIOSH recommends a limit of 85 dBA averaged over an eight-hour workday and halving the time for every 3 dBA increase (3).
Grounds equipment sits near that line: in a study of groundskeepers, the loudest readings from their equipment ran from 76 to 109 dBA, and 82% of them were above 85 dBA (4).
I put ear protection on before I press the trigger. Earplugs often fit poorly, and a poor fit cuts the protection they give (5). I check the plug seal or use muffs.
The tool weighs 4.6 lb without the battery, and Greenworks gives no weight with a pack. On the path and porch jobs the tube sits level in one hand, and I change hands between the porch and the plot.
Care, Storage and Safety
Keep the blower dry. Greenworks says not to use it in rain, not to handle it with wet hands and to store it indoors. Take the battery off before cleaning, storage or transport, keep the air vent clear, and wipe the housing with a moist soft cloth, because solvents and fuels damage the plastic.
Protection
Wear eye protection with side shields and hearing protection, and a dust mask in dusty work. Keep people, pets and windows out of the debris path, and keep children under 14 away from the controls.
In winter I store the packs in the house at part charge. A lab study of lithium-ion cells found that storage at a high charge speeds up capacity loss (6).
Who It Suits and Who Should Skip It
The blower fits a narrow job well and a wide job badly. It suits these buyers:
- Owners of a Greenworks 40V battery who want a light blower for paths, patios and small lawns.
- Clearing dry leaves and grass clippings on up to about a quarter acre.
- Anyone who sweeps a garage, a porch or a driveway.
Skip it if any of these apply:
- You have no 40V battery and want one box.
- Your leaves are wet, matted or deep, or you clear gravel beds.
- The work is farm, orchard or paid work, because the warranty covers personal use only.
- You need more than one 2.5 Ah pack of work on high and have no spare.
Drawbacks to Know About
Three limits decide whether the blower suits you.
- Short run on high: up to 18 minutes from a 2.5 Ah pack, so a second pack matters.
- Mid-range power: thick wet leaves need a rake or a stronger blower.
- Warranty scope: the 3 years cover personal use by the original buyer. Farm or paid work sits outside that term, so on my land I treat the orchard strips as unprotected.
How It Compares With Alternatives
The Greenworks 40V 550 CFM kit adds a brushless motor and a 4.0 Ah pack in the box. According to EGO, the LB6504 moves 650 CFM and runs about 30 minutes on high from its 5.0 Ah pack. Ryobi’s 730 CFM blower is tool only too, but it takes only Ryobi’s own 40V packs. The table sets all four beside this one.
| Blower | Airflow, maker’s figure | Battery in the box | Pick it for |
|---|---|---|---|
| Greenworks 40V 500 CFM (this review) | 500 CFM | None, tool only | Paths and small lawns |
| Greenworks 40V 550 CFM kit | 550 CFM | 4.0 Ah pack | More air on 40V |
| EGO Power+ LB6504 | 650 CFM | 5.0 Ah pack and charger | A quarter to half an acre |
| Ryobi 40V HP Whisper | 730 CFM peak | None, tool only | Ryobi 40V owners |
| WORX WG543 | 410 CFM in air-volume mode | 4.0 Ah 20V pack and charger | A patio, with no battery on hand |
Common Problems and How to Avoid Them
Most trouble comes from the controls, the battery and the surface.
- It stops mid-job: check three things in order. The cruise control lever comes first, because zero cuts the motor and the trigger restarts it. Next the battery: it must sit until it clicks and hold charge, and a 2.5 Ah pack lasts up to 18 minutes on high. Last the air vent, which Greenworks says to keep clear; with the battery out, vacuum the dust from it.
- A pack will not fit or run: only Greenworks 40V packs belong in this blower, and each pack needs the charger made for it.
- Leaves slide and do not lift: they are wet. Wait for them to dry, or rake the thick part first.
My Final Verdict on the Greenworks 40V 500 CFM Blower
Buy it if a Greenworks 40V battery already lives on your shelf and your jobs are paths, a porch, a patio and a lawn of up to about a quarter acre. Skip it if you need a battery in the box or the work is farm or paid work. A reader who has wet leaf mats or gravel beds to clear needs a stronger tool. My Greenworks 40V leaf blower review verdict stands as a buy for the 40V pack owner and a pass for the buyer who must add a pack and a charger.
Frequently Asked Questions
Do leaf blowers work on wet leaves?
Leaf blowers work on wet leaves only when they move enough air under the edge of the mat, and a 500 CFM blower like this one moves a thin damp layer but slides over thick soaked clumps. Wait for the surface to dry or rake the heavy part first, and keep the blower out of rain.
What is the difference between CFM and MPH?
CFM is the volume of air a blower moves each minute, while MPH is the speed of that air at the nozzle. Volume lifts and rolls a pile of leaves and speed peels dry debris off a hard surface, which is why 500 CFM and 120 mph suit light work.
Which Greenworks leaf blower is the best?
The best Greenworks leaf blower depends on the job: the 40V line, including this 500 CFM model, suits paths, patios and small lawns, while bigger yards and wet leaves call for the more powerful 60V and 80V handhelds and backpacks. Pick the voltage that matches the batteries you already own, because each line has its own packs.
How long does a Greenworks 40V battery last?
A fully charged Greenworks 40V 2.5 Ah battery runs this blower for up to 18 minutes on high, according to Greenworks. Turbo drains the pack fastest and cold weather shortens the run, so a second 40V pack is the simple way to keep working through a bigger job in the yard.
Are Greenworks 40V batteries interchangeable?
Greenworks 40V batteries are interchangeable across the 40V tool line, so a pack from a trimmer or mower fits this blower without an adapter. They do not fit 24V, 60V or 80V tools, because each voltage line keeps its own batteries and chargers, and a charger belongs with its own pack type.
References
- Ji Y, Zhang Y, Wang C-Y. Li-Ion Cell Operation at Low Temperatures. J Electrochem Soc. 2013;160(4):A636-A649.
- Occupational Safety and Health Administration. Preventing Fire and/or Explosion Injury from Small and Wearable Lithium Battery Powered Devices. Safety and Health Information Bulletin SHIB 06-20-2019. US Department of Labor; 2019.
- National Institute for Occupational Safety and Health. Noise-Induced Hearing Loss. Noise and Hearing Loss. Centers for Disease Control and Prevention; 2024.
- Balanay JAG, Kearney GD, Mannarino AJ. Assessment of Occupational Noise Exposure among Groundskeepers in North Carolina Public Universities. Environ Health Insights. 2016;10:83-92.
- Morata TC, Gong W, Tikka C, Samelli AG, Verbeek JH. Hearing protection field attenuation estimation systems and associated training for reducing workers’ exposure to noise. Cochrane Database of Systematic Reviews. 2024;5(5):CD015066.
- Keil P, Schuster SF, Wilhelm J, et al. Calendar Aging of Lithium-Ion Batteries. J Electrochem Soc. 2016;163(9):A1872-A1880.
Safety Note: Leaf blowers throw debris and can damage your hearing. Wear eye and ear protection, read the manufacturer’s manual, and check your local rules on noise and operating hours.