Quick verdict
An 18-inch brushless push mower that runs two 40V Max 4.0 Ah packs together for 80V Max, rated at up to 30 minutes and a quarter acre, with a 2-in-1 deck, a 13.2-gallon bag and six heights from 1 to 3 inches. It suits a flat small-to-medium lawn and a buyer who wants a stated warranty from a budget brand. The caveat is that both packs are needed for every cut and the top height of 3 inches is low for some lawns.
Strengths
- Two 40V Max 4.0 Ah packs and a charger included
- Brushless motor spinning up to 3,600 rpm
- 18-inch deck is a step up from the common 16 and 17-inch kits
- Stated 3-year tool and 1-year battery warranty
- Single-lever height adjustment with a 13.2-gallon bag
Weaknesses
- Both packs run together, so there is no spare to swap in
- Top cutting height of 3 inches is low for tall-cut lawns
- Push only, 2-in-1 deck, no side discharge
- Weight and deck material are not stated
The overall YardToolLab Score is out of 100. Section scores are out of 10.
Who this mower is for
Between the 16-inch starter kits and the 21-inch machines sits a gap for an owner with a flat quarter-acre lot who wants a little more width without a lot more weight. KraftSense’s 18-inch 80V Max push mower fills it: two 40V Max packs working together, a brushless motor, a 2-in-1 deck and a stated warranty, sold as a complete kit. It is a budget-brand mower for a buyer who reads the spec sheet rather than the badge.
This review is based on the maker’s published specifications and on recurring owner feedback. We have not run this product ourselves.
What you get
The kit includes the mower, two 40V Max 4.0 Ah lithium packs and a charger. The two packs are fitted together to give the 80V Max system voltage. The motor is brushless and spins up to 3,600 rpm. The deck is 18 inches, mulches or rear bags into a 13.2-gallon bag, and moves through six heights from 1 to 3 inches on a single lever. KraftSense rates runtime at up to 30 minutes and coverage at up to a quarter acre, and states a 3-year tool warranty and a 1-year battery warranty. Weight, deck material and the start arrangement are not given.
Cutting and power
Eighty volts across an 18-inch blade is generous, and the 3,600 rpm figure is at the high end for cordless decks, which helps with a clean cut edge and with lifting grass before the blade. Owners of two-pack 80V Max mowers of this type report that they hold speed in normal growth better than single-pack 40V kits of the same width and slow in thick wet grass like everything else in the class. There is no side discharge, so tall grass is handled by raising to 3 inches and mulching in half-width passes, or bagging. The 1-inch low setting is for a close spring scalp and should not be used weekly.
Runtime and batteries
Two 40V Max 4.0 Ah packs together carry a little under 300 watt-hours. KraftSense’s 30 minutes and quarter acre are the maker’s figures for favorable conditions, and the listing is candid that terrain, grass and height change them. Because both packs run at once, there is no spare to swap in; when they are flat the mowing stops until the charger is done. That is the main practical difference from a two-pack kit that runs one pack at a time. The packs fit KraftSense’s own 40V Max tools, a small catalog.
Build, handling and ergonomics
This is a push mower, and at 18 inches with two packs aboard it should be lighter than a 21-inch steel-deck machine while still needing a shove on slopes. Weight is not published, which is the one figure a push-mower buyer most wants. The single-lever height adjustment is a convenience that many budget kits skip. A recurring note on budget mowers of this type is that the handle joints flex a little and benefit from being snugged after assembly, and that a bag-full indicator, if fitted, should be trusted less than a glance in the bag.
Living with it
No gas, oil or tune-ups, as the listing says. Keep the blade sharp; on a two-pack mower a dull blade shows up as lost minutes before it shows up as a ragged cut. Scrape the deck after damp cuts and store the packs indoors at about half charge over winter. The 3-year tool warranty is a plus for this bracket; the 1-year battery warranty is short, so charge and store the packs with care. Spare bags and blades will come from the maker rather than a store shelf.
Alternatives to Consider
The Greenworks 40V 17-inch push mower with two packs is the mainstream alternative with a huge battery range. The Ryobi 40V 20-inch push mower offers a bit more width with Home Depot support. If your lawn has slopes, the KraftSense 18-inch 80V Max self-propelled version adds drive for a modest step up.
Verdict
Buy the KraftSense 18-inch 80V Max push mower if you have a flat quarter-acre lot, want a bit more width than a 16-inch kit, and value a stated 3-year tool warranty over a big brand name. Skip it if you need a swap-in spare pack, a cutting height above 3 inches, or side discharge for rough growth.
Full specifications
KraftSense 18-Inch 80V Max Cordless Lawn Mower with Two 40V Max 4.0 Ah Batteries and Charger FAQs
Not quite. The mower runs two 40V Max packs in series, and Max refers to the peak no-load voltage. It is a fair way to drive an 18-inch deck, but it is not the same class as a single 80V 6.0 Ah pack found on 21-inch mowers.
No. The listing says the two packs work together to supply the motor, so both must be fitted and charged for every cut.
KraftSense rates it for up to 30 minutes and a quarter acre, and notes that grass conditions, terrain and cutting height change that. Take the quarter acre as a dry, weekly-cut figure.
Three inches. That suits cool-season lawns kept neat, but owners who prefer a 3.5 or 4-inch summer cut on fescue or St. Augustine will find it low.
