Best Leaf Blower Cordless

Cordless Blower Vac Review

RB 40V Cordless Leaf Blower Vacuum Combo Review: Specs, Pros & Cons

⚡ Overview: A Budget 40V 3-in-1 With a Big Mulch Claim and a Small Bag

The RB 40V cordless leaf blower vacuum combo is a 3-in-1 tool that blows leaves into piles, then vacuums and mulches them into a collection bag. The Amazon listing describes a 40V system with a 4.0Ah battery and a fast charger in the kit, a 12L zippered bag, a claimed 30:1 mulching ratio, an adjustable auxiliary handle, and a one-flip conversion between blower and vacuum. The images supplied for this page also point to a wheeled design and a 346 CFM figure.

Two details deserve a close look. First, the 346 CFM figure appears to be for vacuum mode, because a sibling listing gives only 155 CFM for blowing. Second, the 12L bag is small next to the 40 L bags on rival tools. And as with other budget white-label tools, I found no independent test, no stated warranty, and no clear maker. This RB 40V leaf blower vacuum combo review reads the claims carefully, shows where sources disagree, and compares the RB with better-documented tools. It’s research-based, and I haven’t tested the combo myself.

It can be, for a small yard and a tight budget, if you accept a lot of unknowns. You get a battery, a charger, a bag, and a 3-in-1 design for one price, with a large mulch-ratio claim. But the 12L bag will fill quickly, the blower mode is weak compared with a dedicated blower, and there is no independent test, no stated warranty, and no clear maker. Choose the EGO LV5000 for a 40 L bag and a 5-year warranty, or the RYOBI 40V Vac Attack for a documented 16:1 metal-impeller design.

• Best for: small lawns and patios where you want one cordless tool to blow, vacuum, and mulch a modest amount of leaves
• Standout strength: a complete kit with a 4.0Ah battery, a fast charger, and a bag, plus a one-flip conversion between modes
• Biggest weakness: a 12L bag that fills quickly, weak blowing airflow, and almost no documentation: no independent test, warranty, or maker details
• Skip it if: you have a large yard, want strong blowing power, or want a documented warranty and a proven battery platform

Score basis: raised by the included battery and charger, the 3-in-1 design, and the low entry cost; lowered by the small bag, the weak blower airflow, the 30:1 claim that no test backs, and the missing warranty and maker information. The score rests on the listing’s claims, not on test results. It’s an editorial judgment, not a lab score, and it isn’t based on hands-on testing.

Availability note. The Amazon link on this page leads to the listing titled “RB 40V Cordless Leaf Blower Vacuum Combo with 4Ah Battery & Fast Charger.” RB also sells a separate cordless blower with a 2Ah battery, and other sellers list near-identical tools under different names, so make sure you’re on the 4Ah 3-in-1 listing. Prices vary widely: one dropship reseller on eBay listed a copy at $305.99, and I couldn’t confirm the current Amazon price. I couldn’t open the Amazon listing itself, so check it for the price, stock, seller, and return policy before you order.

In the kit

3-in-1 blower, vacuum, and mulcher

40V, with an adjustable auxiliary handle

4.0Ah 40V battery

Included, per the listing

Fast charger

Included, per the listing

12L zippered collection bag

Listed on the Amazon page and a reseller’s data

To confirm on your listing

Wheels and shoulder strap

Shown in images and similar listings; not confirmed

A second battery

Compatibility with other 40V brands is unconfirmed

Hearing and eye protection

Sensible for any blower or mulcher

📊 Full Specifications

Core specs

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: What 346 CFM Really Means

CFM and MPH sell blowers, but blowing force in newtons says more about how one handles a heavy pile. Nobody has published a force figure for the RB combo, and I found no independent test, so I can’t place it on the same scale as the blowers I’ve reviewed. The most important thing to understand is where the 346 CFM comes from. A Mowro-branded listing for a tool in the same family gives 116 MPH and 155 CFM for blowing, and 102.5 MPH and 346 CFM for vacuuming. A vacuum moves more air through a wider opening, so it posts a bigger CFM number than the blower mode of the same machine.

That means the headline 346 CFM is probably a vacuum figure, and the blowing airflow is much lower. For context, the EGO LB6500 is rated at 650 CFM and measured about 20.3 N in my EGO LB6500 review, and the Toro Flex-Force is rated at 605 CFM and measured 18.1 N in turbo in my Toro review. A 155 CFM blowing rating is a quarter of the EGO’s. So treat the RB’s blower mode as a way to gather leaves into a pile before you vacuum them, not as a replacement for a dedicated blower.

What a 30:1 mulch ratio does and doesn’t tell you

The listing claims a 30:1 mulching ratio, which would mean 30 bags of loose leaves become one. That is unusually high: RYOBI’s Vac Attack and EGO’s LV5000 claim 16:1, and WORX’s 40V 3-in-1 claims 12:1. Ratios have no shared test standard, so a bigger number isn’t proof of a better shredder. What matters more is how much leaf matter the bag holds, and here the bag size is the limit.

As a theoretical illustration, a full 12L bag at 30:1 would hold the mulched equivalent of about 360 L of loose leaves, which is a bit over three 30-gallon yard-waste bags. By the same arithmetic, the EGO LV5000’s 40 L bag at 16:1 would hold about 640 L. So even if the RB’s ratio is real, you’d empty a much smaller bag much more often. If you’re comparing options, the current Amazon listing shows what’s bundled.

🔄 Switching Modes and Getting Set Up

The listing says the tool converts between blower, vacuum, and mulcher in seconds, and the images call it a one-flip conversion. That fits the usual design of this class: you attach the blower tube, or you swap to the vacuum tube and clip on the bag. I haven’t handled the tool, so I can’t say how quick or sturdy the swap is. Here’s how the three jobs fit together:

Shredding happens automatically in vacuum mode on tools of this design. I’m describing the listing and the usual layout, not a test.

A sensible way to work with a small bag

• Work in small areas: blow leaves into a few tight piles, then vacuum one pile at a time so you empty the bag at natural stopping points.
• Empty onto beds or into compost: mulched leaves can go straight onto garden beds, if your area allows it.
• Keep the battery charged: the fast charger is included, but I found no charge time, so plan on a gap between sessions.
• Go dry only: neither the listing nor the images mention wet leaves, so don’t count on wet pickup.

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

The kit comes with a 40V 4.0Ah battery and a fast charger. I found no runtime or charge-time figure for the RB, so I can only give context from better-documented tools. A 40V 4.0Ah pack from RYOBI is rated at 144 Wh, and RYOBI says its Vac Attack runs over 30 minutes on a 4Ah battery. These are energy figures for 40V packs at a 36V nominal rating, for context only, and I haven’t confirmed that the RB’s pack matches them:

Stored energy for 40V packs at a 36V nominal rating (Wh)

The 4.0Ah figure of 144 Wh comes from RYOBI’s published specification. The 2.0Ah and 5.0Ah figures are my arithmetic at the same 36V nominal rating.

What to expect, honestly

A 4.0Ah battery is a mid-size pack, and vacuuming and mulching generally draw more power than blowing at a low setting. A reasonable expectation is roughly half an hour of continuous use, in line with RYOBI’s claim for a similar pack, but that’s an inference from a rival’s documentation, not a number from RB. If your yard needs longer sessions, a second battery matters, and that raises the compatibility question.

The battery question

Whether RB’s 40V batteries fit other brands’ tools, or whether you can buy a spare, is unclear. I found no compatibility statement and no listing for a separate RB battery. If you already own RYOBI or Greenworks 40V batteries, don’t assume they’ll fit. Buying into an undocumented battery system is the biggest long-term risk of a white-label tool. Check the Amazon listing for today’s price and for exactly what ships.

⚖️ Weight, Noise, Build, and Use by Job

Weight and handling

A reseller’s item data lists 14 lb without saying what it covers, so I can’t tell you what you’ll carry. For comparison, RYOBI’s Vac Attack is listed at 12.7 lb, and the EGO LV5000 weighs 12.78 lb bare in vacuum mode. The RB’s adjustable auxiliary handle, and the wheels and shoulder strap shown in the images and on similar listings, are the right features for a heavier tool, because a wheeled rack carries part of the weight in vacuum mode. Confirm on the Amazon photos that your listing really includes them.

Noise

I found no decibel rating for the RB. A tool that vacuums and shreds leaves is likely louder than a handheld blower on low, but that’s an inference, not a measurement. Hearing protection is sensible, and local noise rules vary, so check your ordinance.

Build, impeller, and warranty

I couldn’t find the impeller material, the motor type, a weather rating, or a warranty for the RB. These matter on a leaf mulcher, because plastic impellers are a common weak spot, and RYOBI and EGO both advertise metal ones. With no maker named and no warranty stated, you depend on the seller and Amazon’s return window if the tool fails. Ask the seller before you buy, and keep your order record.

What to check on the listing before you buy

• The battery size: RB sells a 4Ah 3-in-1 combo and a separate 2Ah blower, so confirm you’re on the right one.
• Which mode the 346 CFM refers to: vacuum mode, most likely, with a much lower figure for blowing.
• The warranty and return window: look for a stated term, and keep your order record.
• Wheels, strap, and bag: check the photos and the box contents.
• Recent reviews: sort by newest and look for reports on the impeller, clogging, and the bag.

What the numbers suggest, by job

These are reasoned from the specs and similar tools, not from my own testing.

• Small lawn with dry leaves: the intended job. Blow into piles, then vacuum and mulch in small batches.
• Patios, decks, and driveways: the blower mode can gather light debris, though a dedicated blower is faster.
• Curbside yard-waste limits: the 30:1 claim is the selling point, but the small bag limits how much you can process per pass.
• Wet or matted leaves: unknown. Neither the listing nor the images address them.
• Half acre and up: a poor fit, given the 12L bag, the unknown runtime, and the weak blowing mode.
• Heavy-duty work: choose a better-documented tool with a stated warranty.

⚔️ How the RB 40V Combo Compares

Against other cordless 3-in-1 tools

These are manufacturer ratings and listings, not measurements. The comparison shows how much better documented the alternatives are.

Against dedicated cordless blowers on this site

These blowers don’t vacuum or mulch, but they are lighter and far stronger at blowing. The newton figures come from Pro Tool Reviews bench tests that I cite in those reviews. The RB publishes none.

Collection bag size (liters)

Theoretical mulched-equivalent capacity per full bag (liters)

Bag sizes come from the makers’ listings, and the capacity bars multiply bag volume by each maker’s claimed ratio. The ratios are marketing claims with no common standard, so treat these as a rough guide, not a measured result.

If you want a documented, better-supported tool, the EGO LV5000 or the RYOBI Vac Attack are the safer choices. If you want the cheapest corded option and have an outlet nearby, the WORX WG509 is far cheaper. If you’re drawn to the RB’s low entry cost and a complete kit, go in with a clear return window and modest expectations.

⭐ Owner Feedback, Pros and Cons

I couldn’t read the Amazon reviews directly, and I found no verified rating count for this listing. A video review of the RB 40V 3-in-1 exists on YouTube, but I couldn’t extract what it concludes. A similar tool sold as Redback had a single one-star rating on Walmart, which is a different brand name and a sample of one, so I don’t draw any conclusion from it. In short, I have no reliable owner pattern to report. When you check the Amazon page, sort by newest and look specifically for comments on how fast the bag fills, whether the impeller clogs on damp leaves, how long the battery lasts, and how the seller handled any problem.

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

🎯 Who Should Buy It

❓ RB 40V Leaf Blower Vacuum Combo FAQ

What is the RB 40V cordless leaf blower vacuum combo?

It is a cordless 3-in-1 tool that blows leaves, vacuums them into a collection bag, and mulches them on the way in. The Amazon listing describes a 40V system with a 4.0Ah battery, a fast charger, a 12L zippered bag, a claimed 30:1 mulching ratio, and an adjustable auxiliary handle.

Is the 346 CFM figure for blowing or for vacuuming?

Most likely for vacuuming. A Mowro-branded listing for a tool in the same family gives 116 MPH and 155 CFM for blowing, and 102.5 MPH and 346 CFM for vacuuming. An image description on a reseller’s copy of the RB listing also mentions 155 CFM. I couldn’t read the RB listing text itself, so check which mode its 346 CFM refers to.

Does the RB combo come with a battery and charger?

Yes. The listing says it includes a 4.0Ah battery and a fast charger, and a reseller’s item data adds a collection bag. A separate RB blower is sold with a 2Ah battery, so make sure you have the 4Ah listing.

How big is the collection bag, and how much does it hold?

The bag is 12 L, about 3.2 gallons or roughly a third of a bushel. That’s small next to the 40 L bag on the EGO LV5000. At the claimed 30:1 ratio, a full bag would hold the mulched equivalent of about 360 L of loose leaves, which is a theoretical figure.

What does a 30:1 mulching ratio mean?

It claims that leaves shrink to one-thirtieth of their volume. RYOBI’s and EGO’s leaf vacuums claim 16:1, and WORX’s 40V model claims 12:1, so 30:1 is unusually high. Ratios aren’t measured to a shared standard, so I treat the number as marketing until independent tests show otherwise.

How long does the battery last?

I found no runtime figure for the RB combo. For comparison, RYOBI says its 40V Vac Attack runs over 30 minutes on a 4Ah battery, which is a reasonable expectation for this class but not a promise for the RB.

How powerful is the RB as a leaf blower?

Weaker than a dedicated blower. In the same product family, blowing airflow is listed at 155 CFM, against 650 CFM for the EGO LB6500 and 605 CFM for the Toro 51820. No independent test has measured its force. Think of the blower mode as a helper for gathering leaves, not as a main blower.

How heavy is the RB 40V combo?

A reseller’s item data lists 14 lb, but it doesn’t say what that includes, and shipping weights are common in such data. The tool is likely lighter than that without the battery and bag. Check the weight on your listing.

Does the RB combo have wheels?

The images supplied for this page mention easy-rolling wheels, and similar 40V 3-in-1 tools from other sellers list a wheeled rack and a detachable shoulder strap. I couldn’t confirm the wheels in the RB listing text, so check the photos on the Amazon page.

Which batteries work with the RB combo?

It’s a 40V tool, but I found no statement about compatibility with RYOBI, Greenworks, or other 40V batteries. Don’t assume the battery is interchangeable with another brand’s.

Who makes the RB blower?

I couldn’t identify the maker. Near-identical 40V tools with a 12L bag appear under several names, including Swift, Redback, and Mowro, and a reseller’s copy lists a model number of EBV480D2 with a manufacturer called NGP. I can’t confirm that these share hardware, so judge the RB on its own listing and seller.

What warranty does the RB combo have?

I couldn’t find a warranty term. Check the Amazon listing and the seller’s page, keep your order record, and note the return window before you buy.

How does the RB compare with the EGO LV5000?

The EGO LV5000 claims a 500 CFM blower, a 16:1 mulch ratio, a 40 L bag, and a 5-year tool warranty, at a higher price. The RB claims a higher mulch ratio but a bag a third the size, and it has no independent testing or stated warranty. See our EGO LV5000 review for details.

How does the RB compare with the RYOBI 40V Vac Attack?

RYOBI lists a metal impeller, a 16:1 mulch ratio, a 4.0Ah battery (144 Wh), a weight of 12.7 lb, and a 5-year tool and 3-year battery warranty, and it sells the tool bare or as a kit. The RB has a lower profile in documentation: no stated warranty, no impeller details, and an unknown maker.

🏆 Final Verdict: Is the RB 40V Blower Vacuum Combo Worth It?

The RB 40V combo offers a lot on paper for a budget kit: three modes, a battery, a charger, a bag, a one-flip conversion, and a big mulch-ratio claim. What holds it back is the 12L bag, the weak blowing airflow behind the 346 CFM headline, and how little is documented: no independent test, no warranty, no runtime, and no named maker.

If your yard is small and you want an inexpensive way to blow, vacuum, and mulch dry leaves, it’s worth a look, with the return window in mind. If you want a bigger bag, a stated warranty, or stronger blowing, spend a little more on a documented tool. If it fits how you work, you can check the latest price, the battery size, and what other buyers say on Amazon.

📸 RB 40V Leaf Blower Vacuum Combo Photos

Click to see full view

📚 More Blower Reviews

EGO LV5000 Leaf Blower: Specs, Pros & Cons
EGO’s cordless 3-in-1 leaf vacuum, mulcher, and blower.

WORX WG509 Trivac 3-in-1 Blower Vac Mulcher: Specs, Pros & Cons
A corded 12-amp blower, vacuum, and mulcher for dry leaves.

EGO LB6500 Leaf Blower: Specs, Pros & Cons
EGO’s strongest handheld, with about 20 N of measured force.

Toro Flex-Force 60-Volt Max Brushless Handheld Leaf Blower Review
A 605 CFM 60V blower with strong turbo force.

✅ Before You Buy: Quick Checklist

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

• The right listing: the RB 3-in-1 combo with a 4Ah battery, not the separate 2Ah blower
• Which mode the 346 CFM belongs to: vacuum mode, most likely
• Warranty and returns: look for a stated term and a clear return window
• Wheels, strap, and bag: check the photos and the box contents
• Current price and the newest reviews

See all five on the Amazon listing ➔

How this review was made: This is a research-based review. It draws on the Amazon listing’s title and snippets, reseller and marketplace data, listings for similar 40V tools, and published specifications for the comparison tools. I couldn’t read the Amazon page in full, I found no independent test of the RB combo, and I haven’t used it myself. Where sources disagree, I show both numbers, and I update the page when specs, prices, or availability change.

Affiliate Disclosure: BestLeafBlowerCordless.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, we earn from qualifying purchases.