WORX WG584.1 40V Max blower kit with two 4.0 Ah batteries review

WG584.1 is the larger-battery kit in the 40V TURBINE family

The WORX WG584.1 is a current U.S. 40V Max handheld brushless blower kit. Its exact product page lists two 4.0 Ah 20V Power Share batteries and a 2A dual charger. That package is the clearest reason to choose it over the related configurations: it includes a matched pair of higher-capacity packs, whereas WG584.9 is tool-only and the base WG584 page/manual disagree about the included battery capacity and charger details. WORX also says the 40V tool will not operate with just one 20V pack installed, so the supplied pair matters to everyday readiness. The 4.0 Ah rating is a battery capacity, not a promise of a particular number of minutes in your yard. The page’s claim that these packs deliver twice the runtime of standard 2.0 Ah packs is the manufacturer’s comparison, not an independent runtime test.

Mode ratings are not one combined performance number

The page headline reads 430 CFM and 90 mph, but the same product page’s detailed specification table lists airflow from 300 to 470 CFM and airspeed from 60 to 95 mph. Its description says there are three speed settings plus TURBO, and assigns the lower/higher values across those settings. The key shopping distinction is that airflow volume and airspeed are specified separately by mode; do not assume 470 CFM and 95 mph happen together or represent a measured leaf-clearing speed. For a broad sweep, the higher-volume setting is the meaningful specification; a more concentrated stream may be useful when shifting stubborn debris. If your must-have is a value above 430 CFM, the detailed table supports a 470-CFM Turbo maximum, but the unexplained 430-CFM headline means that discrepancy should remain visible. It is not a substitute for a controlled performance test.

Two batteries are required, and this package includes them

WORX says the WG584.1 comes with two 4.0 Ah 20V rechargeable Power Share packs and a dual-port charger. Its FAQ says the 40V tools need two batteries simultaneously and will not run from one. This creates a different match from WG584.9: the .9 omits batteries and charger, while the .1 supplies two packs and the charging equipment. It also differs from base WG584, whose exact page says two 2.0 Ah batteries while the linked WG584M manual lists a 2.5 Ah WA3577 battery and a single-pack accessory row. Those conflicts make WG584.1 the clearer choice when the buyer needs a stated 4.0 Ah pair, not proof that all three cartons are interchangeable. The page reports roughly three hours charging time; practical time can vary with battery state and conditions.

Weight and included accessories have limits

WORX lists the WG584.1 at 7.3 lb, but the product page does not define the weighing setup. Because the blower runs with two batteries installed, do not automatically treat that number as the complete ready-to-use weight. The linked family manual’s technical table gives a 7.3-lb battery-included figure for WG584, but the manual cover and model table name WG584 and WG584.9, not WG584.1; the exact .1 page is the evidence for the 4.0 Ah package. A strict carry-weight ceiling therefore cannot be confirmed from the stated basis. The manufacturer page also confirms that the blower does not vacuum or mulch leaves. The shared family manual drawing helps identify the blower body, but it does not show the WG584.1 box contents; the pack and charger claims come from the exact model page.

Where it makes practical sense

The WG584.1 suits a household that wants a handheld cordless blower and prefers not to source the two batteries and charger separately. Its three settings and Turbo make it more adjustable than a basic two-speed sweeper, while the battery indicator can help monitor charge. WORX describes the tool for driveways, sidewalks, patios, decks and yards; the manual’s residential-use instructions and warnings make it a home-yard tool, not a commercial-duty promise. No numeric runtime under a stated leaf load was verified, and brushless-motor marketing language does not establish the result on wet, matted leaves. Use a blower-vac such as the WG505 or WG509 if gathering leaves into a bag is central. A single-pack 20V model is simpler for very small cleanups; the WG585 LeafJet is a separate higher-output family when more volume is the priority.

Questionnaire choices that separate the three packages

Requiring two included batteries, a charger and a 4.0 Ah pack capacity points toward WG584.1. Choosing tool-only points toward WG584.9 instead. The base WG584 may fit a general two-battery-kit need, but its pack capacity and included charger details are less certain because the exact page and linked manual disagree. A 470-CFM minimum with Turbo is supported by the WG584.1 detailed specification table; a minimum above 470 should reject it, and the 430-CFM headline should stay in view. A no-collection blower requirement fits, but a leaf vacuum/mulcher requirement does not. For a strict operating-weight ceiling, the 7.3-lb listing is not enough because the page does not say whether it includes both installed batteries.

Bottom line

Among the closely related WG584 configurations, the WG584.1 has the most explicit battery kit: two 4.0 Ah packs and a dual charger. It is a good match when those supplied components matter, not when the job demands bagging, an independently verified runtime or a guaranteed full-load weight. Its published performance range reaches 470 CFM and 95 mph in Turbo, but the page’s 430-CFM/90-mph headline is another value to keep visible. Treat the family members as separate package SKUs, and let the battery, charger, collection and weight answers determine which one belongs on your shortlist.