Compact Cordless Blower Review

LOSART Cordless Leaf Blower 650CFM Review: Specs, Pros & Cons

⚡ Overview: A 4.4 lb Cordless Blower With Two Big Batteries

LOSART Cordless Leaf Blower 650CFM sells on Amazon that it rates at 650 CFM, with three speed levels, a motor it calls 1,200 W, and two 20V 5.0Ah batteries plus a fast charger in the box. The listing says the pair can run up to 150 minutes on the low setting. It also comes with a blower tube, an extension nozzle and a shoulder strap, and the listing states a two-year warranty. The weight in the photos on this page is 4.4 lb.

What stands out compared with similar budget blowers is the battery size. Most of these kits ship with 4.0Ah packs, and this one has 5.0Ah. That matters, because a small blower lives or dies on its batteries. What doesn’t stand out is the evidence. I couldn’t find an independent test of this blower, no blowing-force figure, and no runtime on anything but the low setting, so the 650 CFM and 1,200 W figures are claims, not results.

That’s the lens I used for this review. I read the listing text closely, checked the numbers against what the batteries can physically supply, and compared the claims with brand-name blowers that other people have actually measured. I haven’t used the blower myself, and I say so wherever it matters.

Check Current Price on Amazon ➔
Check the listing for the exact version, the seller, and what’s included

It looks like a good-value kit for light and medium cleanup, as long as you treat the 650 CFM figure as a sales number. You get two 5.0Ah batteries, a charger, a strap, an extension nozzle and a stated two-year warranty, in a blower that weighs about 4.4 lb. The catch is that nobody has measured its power, and the listing gives runtime only for the low speed. Choose a brand-name blower like the DEWALT DCBL722B or the EGO LB5302 if you want tested performance and a platform you can grow.

• Best for: homeowners and renters with a small to mid-size yard, patio or driveway who want a light cordless blower without paying for a brand-name platform
• Standout strength: two 5.0Ah batteries and a charger in the box, a 4.4 lb body, a shoulder strap, and a warranty that’s actually stated on the listing
• Biggest weakness: no independent test, headline numbers I can’t verify, and a runtime claim that only covers the lowest speed
• Skip it if: you have a large yard, heavy or wet leaves, or want batteries that fit other tools

Score basis: raised by the larger batteries, the low weight, the full kit and the stated warranty; lowered by the missing independent data, the unverifiable 650 CFM and 1,200 W claims, listings that disagree with each other, and batteries that won’t fit other brands’ tools. It’s an editorial judgment, not a lab score, and it isn’t based on hands-on testing.

Availability note. LOSART sells several versions of this blower on Amazon. The one I read is the 650 CFM kit with two 5.0Ah batteries and three speed levels, in yellow and blue. LOSART also lists a 650 CFM version with two 5.2Ah batteries, and a 750 CFM, 180 MPH version with two 6.0Ah batteries and a three-year warranty. At least two other brands sell listings with almost the same title, “650CFM & 3 Speed Levels.” I couldn’t open Amazon, so I can’t tell which version your link opens. Check the battery size, the speed modes, the warranty text and the seller before you order.

In the box (per LOSART)

Blower body and tube

Plus an extension nozzle

Two 20V 5.0Ah batteries

And a fast charger

Shoulder strap and manual

With a stated 2-year warranty

Worth checking

Charge time

Not stated in the text I read

Air speed (MPH)

Not stated on the 650 CFM listing

Battery compatibility

Listing says it doesn’t fit DEWALT

📊 Full Specifications

Core specs (as claimed)

Figures that vary by source or region

These are the numbers where sources disagree or leave something out. I show each one instead of picking a winner.

💨 Power and Airflow: 650 CFM and 1,200 W, What to Believe

CFM and watts sell blowers, but blowing force in newtons says more about how one handles a heavy pile, and nobody has published a force figure for the LOSART. So I went at the claims from a different angle: what can the hardware plausibly do?

The 1,200 W claim

At 20V, 1,200 W works out to about 60 amps of current (1,200 divided by 20), which is my arithmetic and not a LOSART figure. That is a lot to ask from a 5.0Ah pack. It may be a peak or a rated input figure, or just a big marketing number. If the blower really did pull 1,200 W continuously, a 90 Wh pack would last about 4.5 minutes, and the listing’s 150-minute runtime clearly refers to a much lower power draw on low speed. I’m not calling the claim false. I’m saying you can’t read it as steady power.

The 650 CFM claim

CFM is the volume of air a blower can move. Established 650 CFM blowers are big machines: Bob Vila lists the Skil 40V 650 CFM at 9.7 lb with a 6Ah battery. Brand-name compact blowers are rated lower, such as the DEWALT DCBL722B at 450 CFM, the EGO LB5302 at 530 CFM, and the WORX LEAFJET WG543 at 410 CFM. A 650 CFM rating on a blower of about 4.4 lb isn’t impossible on paper, but it sits well outside that pattern, and I found nothing that confirms it.

What tested blowers measure

Pro Tool Reviews measures blowing force with a meter 3 inches from the nozzle. Even big brand-name blowers post modest numbers next to their marketing: the Ryobi 40V HP 800 CFM measured 24.8 N, the Husqvarna 350iB 800 CFM measured 20.9 N in turbo and only 9.5 N on high, and our EGO LB5302 review covers a 530 CFM blower that measured 16.5 N in turbo. Those are real measurements. For the LOSART there isn’t one.

What I’d expect in the yard

From the size and the batteries, I’d expect it to handle dry leaves, grass clippings, dust, light debris and car or garage cleanup, at least on the lower settings. That’s my expectation, not a test result. Wet, matted leaves and big piles are where small blowers struggle, and nothing on the listing says this one is different. If you’re comparing options, the current Amazon listing shows what’s bundled.

🔑 Setup and Use: Three Speeds, a Strap and Two Batteries

I couldn’t find a LOSART manual online, so this is general guidance for a compact cordless blower with speed levels and a strap, not a quote from LOSART. The product photos describe a three-step assembly, which matches the short parts list. Follow the manual in your box where it differs.

1. Charge both batteries fully before the first use, using the charger from the box.
2. Assemble it: attach the blower tube to the body, then add the extension nozzle if you want more reach or a tighter stream.
3. Slide a battery in until it clicks, and clip on the shoulder strap if you plan a longer session.
4. Start on the lowest speed. The listing says low is for dusting and delicate areas, medium for daily leaf cleanup, and high for heavier debris.
5. Sweep in short passes with the nozzle a few inches from the surface, and keep the pile in front of you.
6. Swap batteries when the first one runs down, and let a hot pack cool before recharging.
7. Take the battery out and clear the air inlet when you’re done.

A practical note: because the 150-minute runtime is a low-speed figure, plan your work around the speed you’ll actually use. If you’ll mostly run high, expect far less, and keep the second battery charged and ready.

🔋 Battery, Runtime, and What You’re Buying Into

This is where the LOSART kit looks best on paper. Two 5.0Ah packs at 20V hold about 90 to 100 Wh each, so around 180 to 200 Wh for the pair. For comparison, the Greenworks 40V 4.0Ah pack in our Greenworks blower/vac review stores about 146 Wh, according to Greenworks’ manual. In other words, the LOSART pair carries more total energy than a single Greenworks pack, and the listing’s 150 minutes on low is believable for that much energy at a low draw. The 650 CFM figure, though, would come from a far higher draw, and the listing doesn’t give any runtime for that.

Runtime depends on the speed, temperature and battery age. Expect far less than 150 minutes if you run the higher speeds.

Battery care and buying advice

If you want proof of runtime and a platform that grows, a kit like the EGO LB5302 gives you a measured force figure and a long household warranty. To see what you’d pay for the LOSART today, check the Amazon listing.

🛠️ Care, Storage, and Troubleshooting

Again, I couldn’t find a LOSART manual, so the tables below are general care guidance for a compact cordless blower. Follow your own manual where it differs.

Troubleshooting (general guidance)

⚖️ Weight, Noise, Safety, and Use by Job

Weight and handling

LOSART’s own product images give 4.4 lb, and one roundup says about 4 lb. Neither says whether a battery is in that figure, and a 5.0Ah pack isn’t light, so check before you assume. Even if the real working weight is a bit higher, this is a light blower, and the shoulder strap is a sensible extra for longer sessions. Compare that with the 9.7 lb Skil 40V 650 CFM and you can see why I’m cautious about the airflow claim.

Noise

LOSART publishes no noise figure that I could find. Small, high-speed fans tend to be loud and high-pitched at full speed, which is my expectation and not a measurement. Wear hearing protection if you’ll run it for long, and check your local noise rules.

General safety practice

• Wear eye protection, and keep bystanders and pets well away. Never point the nozzle at people
• Use hearing protection, and a dust mask in dusty work
• Clear rocks, glass, nails and wire from the area first, since the airstream can throw them
• Don’t use the blower or charger in the rain, or with wet hands
• Remove the battery before cleaning or clearing a blockage
• Stop using a pack that swells, leaks or smells hot, and don’t leave batteries charging unattended
• Follow the safety instructions in your box over anything here

What the numbers suggest, by job

These come from the claims, the size and what tested blowers do, not from my own testing.

• Patios, porches and walkways: a good fit for dry leaves, dust and clippings.
• Driveways: fine for light debris. Heavier piles will test it.
• Garages and workshops: good for sawdust and dust on a hard floor.
• Cars and outdoor furniture: the low setting is made for gentle jobs like this.
• Wet or matted leaves: don’t expect much. No test shows this blower moving them.
• Snow: the listing mentions it. Light, dry powder is plausible, but it isn’t a snow blower.
• Large lawns and heavy leaf drops: not a match. Look at a tested cordless blower like the EGO LB7654.

⚔️ How the LOSART Compares

I can compare claimed airflow, but not measured force, because I found no independent test for the LOSART. All ratings below are manufacturer or seller figures from different sources, so treat the table as a rough guide, not a like-for-like contest.

Airflow ratings (CFM): gray is an unverified seller claim, blue is a brand-name rating

If your jobs are small and your budget is tight, the LOSART is a fair gamble from a seller with a good return policy. If you want proof, support and a platform that grows, step up to a brand-name cordless blower like the DEWALT DCBL722B or the EGO LB5302. For heavy leaf drops, see our EGO LB7654 review.

⭐ Owner Feedback, Pros and Cons

I couldn’t open Amazon’s review pages, so I can’t summarize what buyers say, and I’d rather admit that than invent a pattern. What I can see is that LOSART’s listings use the same selling points over and over: light weight, two big batteries, three speeds and a long low-speed runtime. A couple of roundup sites repeat those points almost word for word, which tells me they copied the listing and not that anyone tested the blower. I found no formal durability data. The most useful thing in the listing is the stated warranty, because it gives you something to hold the seller to, so read it, and keep the return window in mind.

The points below are my analysis of the claims and sources above:

🎯 Who Should Buy It

❓ LOSART 650CFM Cordless Leaf Blower FAQ

Is the LOSART 650CFM cordless leaf blower worth buying?

It looks like a good-value kit for light and medium cleanup if you treat the specs as claims. You get two 5.0Ah batteries, a charger, a strap and a stated warranty, but I found no independent test, so a brand-name blower is safer if you want tested power.

Is the 650 CFM claim real?

I can’t verify it. LOSART’s listing says 650 CFM, but I found no independent measurement. Established 650 CFM blowers are far heavier, such as the Skil 40V at 9.7 lb, so treat the figure as a best-case seller claim.

What does the 1,200 W rating mean?

It’s the motor power LOSART claims. At 20V, 1,200 W would mean about 60 amps, which is a lot for a 5.0Ah pack, so it’s more likely a peak or marketing figure than steady power.

How long does the battery last?

LOSART says up to 150 minutes on low speed with the two batteries. It gives no figure for medium or high, and higher speeds will use far more power, so plan on much less if you run them.

What comes in the box?

According to LOSART’s listing: the blower body, a blower tube, an extension nozzle, two 20V 5.0Ah batteries, a charger, a shoulder strap and a user manual.

How fast is the air?

The 650 CFM listing I read doesn’t state an MPH figure. LOSART’s 750 CFM version says 180 MPH, and other brands’ listings with the same title say 160 MPH. Treat any MPH figure as unverified.

How much does it weigh?

LOSART’s product images say 4.4 lb, and one roundup says about 4 lb. Neither says whether a battery is included, so check the weight on your page.

Do the batteries fit other tools?

LOSART says they’re not compatible with DEWALT, and it names no shared platform, so I’d assume they only fit this blower and its charger.

How loud is it?

LOSART publishes no noise figure that I could find. Small high-speed blowers are usually loud at full speed, so wear hearing protection and check your local rules.

Can it handle wet leaves?

I wouldn’t count on it. Small blowers struggle with wet, matted leaves, and no independent test shows this one moving them. A tested blower like the EGO LB7654 is a better fit.

Is it good for a large yard?

No. The unverified power, the small body and the runtime that’s only claimed for low speed make it a better match for patios, driveways and small to mid-size yards.

Which LOSART version am I buying?

LOSART sells a 650 CFM kit with two 5.0Ah batteries, a 650 CFM kit with two 5.2Ah batteries, and a 750 CFM kit with two 6.0Ah batteries. Check the title, the battery size and the warranty on your listing.

What warranty does it have?

The 650 CFM listing I read states two years, and LOSART’s 750 CFM listing states three. Read the warranty text on your own listing and keep the return window in mind.

Is it the same as other 650CFM blowers on Amazon?

At least two other brands sell listings with nearly the same title and 2 × 5.0Ah batteries. They look like the same design under different names, so compare the seller’s support, warranty and return policy, not just the numbers.

Is there a brand-name alternative on this site?

Yes. See our DEWALT DCBL722B and EGO LB5302 reviews for tested cordless blowers, and the EGO LB7654 for big yards.

🏆 Final Verdict: Is the LOSART Blower Worth It?

The LOSART 650CFM is an easy kit to like on paper. The blower is light, the two 5.0Ah batteries are bigger than most budget kits offer, the charger and strap are in the box, and the warranty is written down. What holds it back is that none of its power has been measured. The 650 CFM and 1,200 W claims don’t line up with the size and battery, the runtime is only quoted for the lowest speed, and several versions under the same brand disagree with each other.

If your jobs are small and your budget is tight, it’s a reasonable gamble from a seller with a good return policy. If you have a bigger yard, or you want proof of performance and long-term support, look at a brand-name cordless blower instead. Before you order, confirm which version you’re buying, the battery size and the warranty text. If it fits how you work, you can check the latest price, what’s included, and what other buyers say on Amazon.

📸 LOSART 650CFM Cordless Leaf Blower Photos and Charts

Click to see full view

📚 More Blower Reviews

DEWALT DCBL722B 20V MAX XR Blower: Specs, Pros & Cons
A light brushless handheld for DEWALT 20V MAX owners.

EGO LB5302 56V 530 CFM Leaf Blower: Specs, Pros & Cons
A boxed kit with a battery and charger, and measured force.

EGO LB7654 56V Cordless Leaf Blower: Specs, Pros & Cons
A 765 CFM handheld for big yards and wet leaves.

Milwaukee M18 FUEL 450 CFM Blower: Specs, Pros & Cons
A compact blower for Milwaukee M18 battery owners.

✅ Before You Buy: Quick Checklist

A few details vary by listing and seller, so it’s worth a minute on the page to confirm:

• Which version: 650 CFM with 5.0Ah or 5.2Ah batteries, or the 750 CFM version
• The seller: LOSART itself or a third party, and the return window
• The warranty: two years or three, and what’s required to claim it
• The batteries: two packs and a charger, and whether spares are sold
• Certification: ask whether the charger and batteries are UL, ETL or similar
• Protective gear and local rules: eye and ear protection, and your town’s noise limits

See all six on the Amazon listing ➔

How this review was made: This is a research-based review. It draws on LOSART’s Amazon listing text for several versions, roundups, Pro Tool Reviews’ test data for brand-name blowers, Bob Vila’s data for the Skil comparison, Greenworks’ manual for the battery comparison, and manufacturer specs for the other blowers. I couldn’t open the Amazon reviews or find a LOSART manual, and I haven’t tested this blower myself. Where sources disagree, I show both numbers, and I update the page when specs, prices or availability change.

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