Best 5 Cordless Lawnmowers Under £300

Discover the best cordless lawnmowers under £300 in the UK. A witty and practical guide to the top five budget-friendly, battery-powered mowers that deliver great features, reliable performance, and solid warranties without stretching your wallet.

Best 5 Cordless Lawnmowers Under £300

Big value, low fuss, and plenty of cutting power. If you are looking to upgrade your lawn care kit without selling a kidney, then this list is designed for you. Cordless lawnmowers have come on leaps and bounds, and the under £300 bracket is now home to some seriously capable contenders. They might not be the absolute top tier of garden machinery; however, they offer a brilliant mix of performance, reliability, and price that makes them hard to ignore.

Why Under £300 Is the Sweet Spot

The main factor that keeps battery-powered lawnmowers on the expensive side is mostly due to the technologies behind batteries and motors. Fortunately, this price range gives the right balance of modern features at a price people find reasonable. You get more power, better runtimes, wider cutting decks, stronger warranties, and build quality that feels reassuring rather than rattly.

Reliable Brands You Already Trust

The models here come from brands that have a proven track record. They are established, dependable, and well-reviewed, meaning fewer surprises, more confidence with every charge. Whether you are tackling a small patch or a more ambitious lawn, these mowers will get the job done without drama.

Who These Mowers Are Perfect For

If you need a no-nonsense, capable tool that will cut cleanly, handle predictably, and keep your garden looking respectable without crossing the £300 line, you are in the right place. This list is designed for smart buyers who want value, not gimmicks.

Best Cordless Lawn Mowers Under £300

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#1, Spear & Jackson 37cm Cordless Rotary Lawnmower 36V

If your lawn is starting to look akin to a small meadow and you're after something under £300 that feels reassuringly capable, the Spear & Jackson 37cm Cordless mower is the one that quietly flexes without showing off. It's a big step up from budget-class cordless machines because, for one, it comes with two 4.0Ah batteries-which is almost cheeky at this price. One charges while the other works, meaning you can mow continuously for almost an hour, a luxury normally reserved for pricier models.

With its 37cm cutting width, it feels built for medium to larger lawns. The rear roller lays down satisfying stripes, and the five cutting heights let you switch from “summer-ready patio lawn” to “we forgot to mow for three weeks” recovery mode in seconds. The mulch plug is another pleasant add-on, letting you return nutrients to the soil instead of filling your green bin.

Build quality is solid for the price, folding handles make storage easy, and the 3-year warranty adds a peace of mind that most cordless mowers in this tier fail to offer. In short, this is the best value "serious" machine under £300, giving you power, runtime, cutting width, and features that normally cost significantly more. If you want a dependable all-rounder without having to spend £400+, this is the one to go for, as it certainly punches way above its price tag.

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#2, Bosch CityMower 32cm Cordless Lawnmower

The Bosch CityMower is designed for anyone with a smaller garden who nevertheless wants serious brand reliability without crossing the £300 line. This mower is lighter, more compact, and more nimble than most cordless mowers in this round-up, making it perfect for urban patches, new-build lawns, or smaller suburban spaces where tight maneuvers and fence-line trimming count for more than brute power.

Powered by the Bosch 18V system, this model offers impressive cutting performance for its size class. Leading the pack at this price point is a brushless motor that operates more efficiently and should last longer than most brushed motors found on budget cordless machines. Its design deploys the surprisingly comfortable Ergoflex handles to take pressure off your back and shoulders, which is perfect for quick, regular mows.

The 32cm cutting width makes it compact but still practical for lawns up to 300m², and Bosch's signature grass combs do a great job of pulling grass in from the edges so you spend less time tidying up with a trimmer. The single-lever height adjustment (30-60mm) is smooth and straightforward, and the lightweight design means it can be easily stored even in tight sheds.

While not built for large gardens or seriously long sessions, the CityMower is nonetheless an incredibly refined and well-engineered option for smaller lawns. It's clean, quiet, efficient, and ergonomic - basically, everything one might expect from Bosch, but still managing to sneak in under the £300 line.

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#3, Flymo EasiStore 340R 34cm Cordless Rotary Lawnmower

Flymo's EasiStore 340R is the kind of mower that immediately emits "neighbour-approved lawn pride" energy. Powered by two 18V batteries for a combined 36V punch, it's designed for small to medium gardens that want a crisp, tidy finish without fuss. The 34cm cutting width is ideal for weaving between borders and beds while Flymo's edge-cutting system does exactly what it promises, letting you shave right up against walls and flowerbeds with fewer follow-up jobs from the trimmer.

Flymo also wins bonus points for practicality. The 35L grass box is surprisingly generous for a mower at this price, and the smart anti-spill tongue is genuinely useful, stopping that classic “dump half the clippings back onto the lawn” frustration. A single lever controls all five cutting heights, from 2cm to 6cm, which keeps things simple even when the grass decides to grow quicker than expected.

The star feature, however, is the rear roller. It gives a neat striped finish, making your lawn look like it's auditioning for centre stage at Wimbledon. Despite all that capability, the EasiStore still stays true to its name: the vertical storage mode saves a noticeable amount of floor space, ideal for cramped sheds. Lightweight, tidy, easy to handle, and backed by Flymo's solid reliability, this model is a strong value pick under £300.

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#4, Mountfield Electress Cordless Lawnmower

Mountfield's Electress 38 Li Kit is a proper overachiever in the under-£300 category, especially if you want a wider cutting deck and a brand known for long-standing reliability. The 38cm cutting width and rust-proof chassis give it an instantly more substantial feel compared to many competitors. You get two 20V 4Ah batteries and a dual charger for up to 25 minutes of runtime, perfect for lawns of up to around 350m².

It’s also got one of the widest cutting ranges - 25–75mm - in this price bracket, so you can choose anything from bowling-green neat to “I’ll get to it eventually”. The height’s easy to adjust and it glides along nicely, its lightweight 12.2kg design making it easy to push. Although it’s hand-propelled, it feels smooth and well-balanced with noticeably reduced noise and vibration when compared to older models of cordless mower.

Where Mountfield does well is with familiarity and trust. This mower feels dependable, sturdy, and well-engineered. The 40L grass collector is larger than average for its class, which means you can mow longer without having to stop.

For homeowners who want something a little more "grown-up" without breaching the £300 threshold, the Electress 38 Li Kit ticks all the practical boxes. It is powerful, predictable, and backed by the reputation of a brand that knows its way around garden machinery.

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#5, Worx WG743E.1 40V 40cm Cordless Lawnmower

If the first four mowers on this list are the dependable foot soldiers, then the Worx WG743E.1 marches in like the general. This one is built for the homeowner who wants proper performance without creeping anywhere near the £300 barrier. Worx loves stuffing clever tech into its tools and this machine is proof of that, bringing serious brains to the cordless mowing world.

The headline act is IntelliCut technology, which automatically adjusts the blade torque when the grass gets thicker. Lush patches? It boosts the power. Light trimmings? It chills out and saves the battery. It feels almost like a mower that's smarter than the operator half of the time. Backed by 2 x 4.0Ah batteries, it is made for medium to large gardens up to 500 m²-so it comfortably covers larger suburban lawns where the cheaper cordless models struggle.

It also impressively cuts close to borders, fences, and edges, meaning less fiddly trimming later. The rear roller gives that classic stripe effect, and the 2-in-1 cut or mulch system means you can fertilise the lawn naturally or simply collect clippings in the bag. The 40 cm cutting width is ideal for covering more ground with fewer passes, yet the mower still folds neatly for compact storage.

Yes, it's heavier than the others at 17.2 kg, but its smooth push and balanced design compensate well. If you want the most capable cordless machine for less than £300, this is the undoubted powerhouse of this group.

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Conclusion

At less than £300, cordless lawnmowers sit in a sweet spot. They're not ultra-budget options with limited runtimes, yet neither are they ultra-premium machines whose price tags seem to sting. Instead, they deliver serious value, reliable performance, and brand-backed quality that budget buyers and practical homeowners alike can genuinely trust.

All Garden Types

Within this clutch of five models, there's a mower to suit almost every garden style and type. Compact, light units from Bosch and Flymo will serve smaller lawns particularly well, while medium-sized gardens are best handled by the more robust Mountfield, Spear & Jackson and Yard Force. That leaves the Worx WG743E.1, stretching toward the top of the line with enough performance and runtime to satisfy anyone wanting the most capability for less than £300.

Cordless Convenience

What they share is cordless convenience, solid warranties, easy storage and simple controls. No petrol fumes, no cable wrestling, and no faff. Just straightforward mowing for the homeowner who wants clean, predictable results without spending half a week's wages.

Final Word

So, the final word is this: don't assume you have to spend £400-£600 to get a decent cordless mower. This category proves you can get dependable power, respectable runtimes, and trusted brand support for far less. For most everyday gardens, any one of these five will keep your lawn looking sharp, healthy, and stripe-ready all season long without blowing the budget.