Greenworks MZ5461 SKU 7422302 60V 54-inch zero-turn with mixed six-battery kit review

This is the Greenworks MZ5461 package identified on the U.S. product page as SKU 7422302, model MZ546: a 60V, 54-inch MaximusZ zero-turn with two 20Ah, two 8Ah and two 4Ah batteries plus a 1.5kW charger. It is a different box from the current-looking MZ5461 SKU 7430202 listing, which supplies two 20Ah and four 8Ah packs. The mower family is shared; the battery set is not. Check the full SKU and the list of pack sizes on the retailer's page or carton before applying this review.

What the six-pack changes—and what it does not

Adding the six printed capacities gives 64Ah for this kit (2×20 + 2×8 + 2×4). That arithmetic is a comparison of separate 60V packs, not a single 64Ah battery and not a runtime calculation. The smallest included packs are 4Ah, while the largest are 20Ah; if your minimum applies to every battery in the box, this mixed set does not meet an 8Ah-per-pack requirement. Greenworks says the mower needs at least three packs installed, one in each of three functional columns for drive and the left and right blade functions. Greenworks also says in its page FAQ that the mower recognizes batteries above 4.0Ah, which sits uneasily beside the two 4.0Ah packs listed in this package. I could not resolve whether that is FAQ shorthand or a real compatibility limit, so confirm the included 4Ah packs’ operation with Greenworks rather than relying on them to serve all three functions. Six supplied packs otherwise give you more choices for charging and installing, but the manual and product page do not turn that into a guaranteed number of hours for your lawn.

The SKU 7422302 page publishes “up to 85 minutes” of runtime and “up to 3.5 acres,” plus a recharge claim under 3.5 hours with the 1.5kW charger. Treat these as Greenworks' maximum claims for this battery package, not as a promise that every lawn can be finished on one charge. Grass height, moisture, blade setting, travel speed, obstacles and route time all change the job. The page also claims a 31-horsepower-equivalent output; that is the maker's comparison, not a gas engine installed in the mower or an independent power test.

A broad cutting path needs a broad route

The 54-inch advertised cut and zero-turn layout suit an open lawn with long runs and room to turn, not a yard where the mower spends much time threading narrow gates and tight beds. Greenworks' manual gives the MZ546-type machine as 76.77 inches long and 66.14 inches wide with the side-discharge chute; it also lists a 55.64-inch deck-width measurement. That physical width is not the page's nominal cut. Measure the chute side, storage door and turning area.

The product page gives a single-lever 14-position cut-height range from 1.5 to 4.5 inches and three blade motors. Its marketing blocks disagree about tip speed: one says 18,399 feet per minute, another 17,000. The linked MZ546(TYPE1) manual lists rotational speeds. These are not treated as one settled figure or a cut-quality promise.

Clippings and hauling are package-specific decisions

The manual describes side discharge as the shipped setup and discusses mulching, but the package list does not name a mulch cover and we could not confirm the exact cover for this SKU. Separate bagger SKU 7514002 is listed for a 60V 54-inch MaximusZ; it was sold out on its product page when checked and is not in this mower kit. Bagging is a plan only if that separate accessory is obtainable; it is not a bagger-in-the-box promise.

The page advertises a 200-pound rear dump bed; the manual lowers that to 90 pounds on a slope. For towing, the manual sets 300 pounds maximum for trailer plus load and less than 45 pounds tongue weight, cautions against slopes above 10 degrees, and prohibits towing with a grass catcher. A product-page FAQ instead says 350 pounds, so use the manual's lower, specific instruction. The page and later manual section refer to a 15-degree mowing boundary, but an earlier general warning in that same manual says not to operate above 10. Until Greenworks clarifies the MZ546 revision, plan around the stricter 10-degree warning.

Controls, storage and ownership

Lap bars are not a steering wheel: the paired levers control separate wheel motors and take practice, especially when stopping or reversing near obstacles. The manual calls for the ROPS bar to stay raised and locked with the seat belt fastened during operation; it says the belt must not be used with the bar folded down. Check overhead clearance, the storage height and the manual's safety routine before treating the fold-down bar as a way to fit a low shed. The manual also says to keep the mower indoors and dry, not to operate it in rain, and to clean debris without washing the electronics with water.

The manual states four years or 200 hours of use, whichever comes first, for the original purchaser's personal-use machine; the product page advertises a four-year limited tool-and-battery warranty. Confirm the warranty terms and registration requirements for the actual serial number and seller. The exact 7422302 listing showed sold out in the inspected page capture, so this assessment is about the configuration, not a claim of present stock.

Who should compare it—and what to verify

Compare this kit if you want a large electric zero-turn and value six supplied 60V batteries. It is a poor fit for an 8Ah minimum per pack, narrow access, a bagger required in the mower box or a lawn where the cautious 10-degree slope plan is unworkable. Compared with SKU 7430202, this set has 8Ah less summed label capacity and two 4Ah packs; that does not prove shorter mowing time. A 42-inch Greenworks CRZ4282A2 may suit tighter routes, but its 80V packs cannot be compared to these 60V Ah totals as equivalent energy or runtime.