Best Cordless Lawn Mowers 2025: Top Picks Tested

The dirty secret of cordless mower marketing: voltage numbers mean almost nothing without knowing the amp-hour rating and deck size together. A 48V machine with a 46cm deck will chew through a 5.0Ah battery faster than the box implies. Before you buy on headline voltage alone, here's what actually matters in 2025's best options.

Quick Picks

• Overall Winner: Ryobi RLM18X33B50C — best balance of price, weight, and real-world usability for most homeowners
• Best for Stripes: Webb WEV2012RB4 — the only cylinder mower here; produces a finish rotary blades can't touch
• Best for Large Lawns: Mountfield SP185 Li — self-propelled, 46cm cut, 400m² rated, 5-year warranty
• Skip It: Bosch CityMower 18V-32-300 — only 3 cutting height settings and a tiny 31L box; the price premium isn't earned

The Overall Winner: Ryobi RLM18X33B50C

At $219 and just 8.5kg, the Ryobi is what most suburban homeowners actually need. It covers 225m² per charge — enough for a typical backyard — and the 33cm deck is narrow enough to navigate gates and flower beds without cursing. The 4.8-star rating signals this isn't just good on paper. The 2-hour charge time is a bit slow, but for weekly mowing sessions that's a non-issue. Ryobi's 18V battery ecosystem is also genuinely useful if you already own their tools.

The Stripe-Chaser's Pick: Webb WEV2012RB4

Cylinder mowers cut by scissoring grass rather than slapping it, and the difference in finish is real — tighter, cleaner, proper lawn-tennis stripes. The Webb is the only cylinder option here and earns its $249.99 price for anyone who cares about presentation. One honest caveat: the 13–23mm cutting range means you're committed to a short, well-maintained lawn. Let it get long and shaggy and a cylinder will struggle. It's also the heaviest push mower here at 12.5kg, and the 18L grass box fills up fast.

For Bigger Yards: Mountfield SP185 Li vs. Stiga Collector 48S AE

These two are nearly spec-identical — both 48V 5.0Ah, 46cm cut, 25kg, 60L hybrid collector, 6 height settings, 400m² rated, 5-year warranty. The Mountfield adds a 1300W brushless motor spec and an anti-scalp comb; the Stiga counters with a galvanised steel deck. Real differentiator? Price. The Mountfield runs $379–$455 and the Stiga $389–$445. Shop the current sale price and pick whichever is cheaper that week — they're that close. Self-propulsion at 3.7km/h (Mountfield's listed speed) makes the 25kg weight manageable on slopes, but don't kid yourself: these are chunky machines and storage space matters.

The One to Skip: Bosch CityMower 18V-32-300

Bosch has a great reputation and this mower isn't broken — but at $269–$329 it's hard to justify. Only 3 cutting height settings is genuinely limiting (the Ryobi gives you a full 25–65mm range for less money). The 31L grass box is the smallest here after the Webb's. And the 18V 4.0Ah battery on a 32cm deck covers up to 300m², which is fine, but so does the Ryobi at $219 with less frustration. The 95-minute charge is the one bright spot. Save your money.

The Hidden Cost Nobody Talks About

Several of these are sold as 'kits' — meaning battery and charger included. Always confirm before buying. A replacement 48V 5.0Ah lithium pack can run $100–$150 on its own, which quietly changes the value equation on the Mountfield and Stiga if you need a second battery for larger lawns. The Ryobi 18V ecosystem, by contrast, has affordable batteries everywhere. Ecosystem compatibility isn't glamorous, but it's a real long-term cost to factor in.