LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger Review: The Petrol-Killer for Large UK Lawns?

For years, managing our large, sprawling lawn felt like a constant battle fought on two fronts. On one side, we had the brute force of an old petrol mower—a noisy, fume-belching beast that required endless tinkering, trips for fuel, and a strong back to wrestle around the flowerbeds. On the other, the frustrating limitations of a corded model, its power cable forever snagging on rose bushes, threatening to trip us up, and limiting our reach to the far corners of the garden. We dreamt of a single machine that combined the untethered freedom and power of petrol with the clean, quiet convenience of electric. This is the exact dilemma that leads homeowners with substantial gardens to search for a robust cordless solution, a machine capable of replacing not one, but two outdated tools. The search for that perfect balance of power, runtime, and versatility is what brought the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger onto our testing grounds.

What to Consider Before Buying a Cordless Rotary Mower

A cordless rotary mower is more than just a garden tool; it’s a key solution for reclaiming your weekend and achieving a pristine lawn with minimal fuss. It solves the core problems of noise pollution, harmful emissions, inconvenient refuelling, and the restrictive tether of a power cord. The main benefits are profound: complete freedom of movement, significantly quieter operation (keeping neighbours happy), lower maintenance, and a cleaner environmental footprint. This freedom allows you to tackle complex lawns with trees, sheds, and winding paths without the constant logistical puzzle of cable management.

The ideal customer for this type of product is someone with a medium to large-sized lawn who values convenience and performance. They are frustrated with their current petrol or corded mower and are ready to invest in a modern, powerful, and versatile battery-powered system. It’s for the homeowner who wants to mow their entire lawn on a single afternoon, perhaps even tackling overgrown patches, without stopping to refuel or untangle a cord. However, it might not be suitable for those with very small, postage-stamp-sized lawns where a smaller, less powerful mower would suffice, or for professionals managing vast commercial estates who may still require the sheer, unrelenting torque of a commercial-grade petrol engine. For those with smaller gardens, a lighter, more compact model might be a more sensible choice.

Before investing, consider these crucial points in detail:

• Battery System & Runtime: This is the heart of any cordless mower. Look beyond just the voltage. Consider the battery capacity (Ah), the number of batteries included, and the charger speed. A system with multiple batteries and fast chargers, like the one offered with this LawnMaster, provides the potential for continuous operation, a game-changer for large properties.
• Cutting Width & Performance: The cutting width (deck size) directly impacts how quickly you can mow your lawn. A wider deck, like this model’s 46cm, means fewer passes and less time spent walking. Also, assess the motor type—a brushless motor generally offers more power, better efficiency, and a longer lifespan than a traditional brushed motor. The ability to adjust cutting height across a wide range is also essential for managing different grass conditions throughout the seasons.
• Materials & Durability: The mower’s deck can be made of steel, aluminium, or polymer (high-grade plastic). Steel is robust but heavy and can rust. Polymer decks, like the polypropylene used here, are much lighter, immune to rust, and can absorb impacts well, but may not feel as rugged to some users. Pay attention to the quality of the wheels, handles, and adjustment levers, as these are the components you’ll interact with most.
• Features & Versatility: Modern mowers offer more than just cutting. Look for 3-in-1 or 4-in-1 functionality: bagging (collection), mulching, and side/rear discharge. An integrated rear roller for creating lawn stripes is a highly sought-after feature for achieving a professional finish. Ease of storage, with folding handles and the ability to stand upright, is a practical consideration for those with limited garage or shed space.

While the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger is an excellent choice, it’s always wise to see how it stacks up against the competition. For a broader look at all the top models, we highly recommend checking out our complete, in-depth guide:

First Impressions: A Powerhouse Straight Out of the Box

Unboxing the LawnMaster 48V 46cm Cordless Lawnmower was an experience in itself. The first thing that struck us wasn’t the mower, but the sheer arsenal of power accessories that came with it. Seeing four substantial MX 24V 4.0Ah batteries and two separate fast chargers laid out was an immediate statement of intent. This isn’t a mower designed for a quick trim of a small patch; it’s a comprehensive lawn care system designed for endurance. Assembly was refreshingly simple and, as one user rightly noted, required no tools. The handles snapped into place with satisfying clicks, taking less than 10 minutes from opening the box to being ready to mow. The mower feels surprisingly light for its 46cm cutting width, a direct result of its polypropylene deck. At 19.3kg, it’s easy to lift and manoeuvre, a stark contrast to the hefty steel-decked petrol mowers we’ve used in the past. The vibrant orange and black design is modern and purposeful, and the central height adjustment lever feels solid and provides a good range of options. You can see its full feature set and specifications online, but the initial hands-on feel is one of intelligent design focused on user convenience.

Deep Dive: Putting the LawnMaster Through Its Paces

A spec sheet can only tell you so much. To truly understand a mower’s character, you have to get it out on the grass, push it to its limits, and see how it handles the unpredictable reality of a large, imperfect lawn. We tested the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger across various conditions—from damp, long grass at the back of the orchard to the more manicured front lawn—to evaluate its core strengths and weaknesses.

The Power Plant: Unpacking the “Continuous Run Time” Battery System

The standout feature of this package is, without question, the battery system. LawnMaster’s approach is both clever and incredibly generous. By providing four MX 24V 4.0Ah batteries and two fast chargers, they have effectively eliminated runtime anxiety for all but the most colossal of gardens. The mower operates on a 48V system by using two 24V batteries in tandem. This means you can have two batteries powering the mower while the other two are in the fast chargers. With a charge time of around one hour per battery, by the time you’ve depleted the first pair, the second pair is fully charged and ready to go. This “charge-while-you-mow” cycle facilitates almost continuous operation, something we found to be a massive practical advantage. For our test area of roughly half an acre, we comfortably completed the entire lawn with power to spare, using just the initial two pairs of batteries. This aligns with feedback from users with even larger plots, like one who tackled 3/4 of an acre of mixed lawn and orchard, confirming the system’s impressive endurance. The iPOWER Intelligent Battery Management System also plays a crucial role. We could audibly hear the brushless motor ramp up its speed when hitting a patch of thick, wet grass and then quieten down on shorter, drier sections. This automatic power adjustment is brilliant; it conserves energy where it’s not needed, stretching every amp-hour of battery life, while ensuring you have the raw power on tap to avoid getting bogged down. It’s an intelligent system that makes this mower a feature-rich option in its class.

From Overgrown Jungle to Manicured Lawn: A 4-in-1 Cutting Masterclass

Power is nothing without performance, and this is where the 46cm cutting deck and versatile cutting options shine. The extra-wide blade cuts a generous swathe, significantly reducing the number of passes needed to cover a large area. Combined with the mower’s lightweight agility, we found the overall mowing time was drastically reduced compared to our old, narrower mowers. We tested all four functions extensively.

1. Grass Collection: The 60-litre Redi-bag does an admirable job. The “bag full” indicator is a nice touch, though we found it could be a bit conservative. The bag fills up well, and the clippings are compacted efficiently. However, we did find some truth in a user’s comment about the grass box becoming tricky to refit. The fabric bag on a frame can lose a little rigidity, requiring a bit of a knack to re-seat perfectly, especially when heavy with damp grass. It’s a minor annoyance rather than a deal-breaker.

2. Mulching: The included mulching plug was easy to insert, and the performance was excellent. The mower finely chopped the clippings, leaving behind an almost invisible layer of nutrients on the lawn. For regular mowing during the growing season, this is our preferred method. It’s faster as there’s no stopping to empty a bag, and it’s great for lawn health. This function was particularly praised by a user who mulched their entire large property, highlighting its effectiveness.

3. Side & Rear Discharge: For the wilder, rougher parts of our garden where collection wasn’t necessary, the side and rear discharge options were invaluable. The side-discharge chute clips on easily and throws the clippings well clear of your path, allowing you to quickly cut down long grass without the mower getting clogged. This is the mode for tackling an overgrown area for the first time in a season.

The central height adjustment, offering six positions from 25mm to 75mm, is effortless to use and provides the flexibility needed for any situation, from a close-cropped formal lawn to a higher utility cut.

Ergonomics, Handling, and those “Subtle Stripes”

At just 19.3 kg, the LawnMaster is a joy to handle. We navigated it around trees, along fences, and up slight inclines with minimal effort. This lightweight design is a huge advantage over heavier petrol models, reducing operator fatigue significantly. The edge combs do a decent job of pulling in grass from the very edge of the deck, allowing for a closer cut against walls and paths. Storage is another area where thoughtful design is evident. The handles fold down quickly and compactly, and the mower can be stored vertically on its end, taking up a tiny footprint in a crowded shed—a feature we absolutely love.

Now, about that rear roller. It does indeed produce a striped effect, but as one user accurately pointed out, they are “subtle ones.” The mower is simply too light for the roller to exert the kind of pressure needed for the deep, defined, bowling-green stripes you’d get from a heavy, dedicated roller mower like a Hayter. It provides a pleasing, tidy finish, but buyers seeking a Wimbledon-esque lawn should manage their expectations. It’s a finishing touch, not a primary feature. We also encountered the handle cable issue mentioned by one reviewer. The cable connecting the power controls is indeed quite taut when the handles are fully extended. While it didn’t prevent operation, we made sure to handle it carefully during setup to avoid straining the connection point, a small but valid design quirk to be aware of. It’s these kinds of real-world details that are important to know before you decide if this is the right mower for your garden.

What Other Users Are Saying

Our findings are strongly echoed in the experiences of other users. The overwhelming sentiment is positive, with many, like us, celebrating the liberation from petrol and cords. One user summed it up perfectly, stating the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger “is proving to be excellent, and has replaced both the ride-on mower and the Flymo.” The “brilliant” four-battery system is a recurring theme of praise, with another happy customer noting, “Note you get four batteries, which is brilliant.”

However, the feedback isn’t universally glowing, which provides a realistic picture. The primary criticisms we also observed are present. The grass box “losing shape” and becoming “very frustrating” to fit is a valid point. The lightweight nature leading to “subtle” stripes from the roller is another piece of constructive feedback we agree with. More concerning is a report from one user of the mower “falling apart” due to “cheap plastic” after a month, coupled with a poor customer service experience. While this seems to be an outlier compared to the more positive reviews, it highlights that the lightweight polymer construction, while great for handling, may not satisfy users accustomed to the heft of all-metal machines.

How Does It Compare? The LawnMaster vs. The Competition

No product exists in a vacuum. To give a full picture, it’s essential to see how the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger stacks up against other popular choices on the market.

1. Yard Force 40V Cordless Lawn Mower 32cm

The Yard Force is a capable mower, but it’s playing in a different league. With its narrower 32cm cutting width and smaller 30L grass collector, it’s designed specifically for small to medium lawns. While it also features a rear roller, its primary appeal is its compact size and lower price point. Someone with a small city garden would find the Yard Force perfectly adequate and the LawnMaster to be overkill. However, for anyone with a larger lawn, the LawnMaster’s much wider deck and superior battery system will save a significant amount of time and effort, making it the clear choice for bigger jobs.

2. Greenworks 48V Self-Propelled Cordless Lawnmower MO48L424-01

The Greenworks model is a very close competitor. It shares the same 48V power system (using two 24V batteries) and an identical 46cm cutting width. The key differentiator is its self-propelled feature. This makes the Greenworks mower an excellent choice for users with hilly or sloping lawns, where the assisted drive can significantly reduce physical strain. However, this feature adds weight, complexity, and cost. The LawnMaster, being a push mower, is lighter, more agile for navigating tight spaces, and comes with a more generous battery package (four batteries vs. two), offering superior value and the potential for continuous runtime right out of the box.

3. Flymo SimpliGlide 360 Hover Lawnmower

The Flymo SimpliGlide represents a completely different approach to lawn mowing. As a corded hover mower, it excels on unusual or steeply banked terrain where wheeled mowers might struggle or scalp the lawn. It’s incredibly lightweight and glides on a cushion of air, making it easy to manoeuvre in any direction. Its main drawbacks are the cord, which limits its range and can be cumbersome, and its lack of a grass collection bag. The Flymo is a specialist tool, ideal for oddly shaped or sloped lawns. The LawnMaster is the far more versatile all-rounder, offering complete cordless freedom and a 4-in-1 system for a complete lawn care solution.

Final Verdict: Is the LawnMaster 48V 46cm Cordless Lawnmower Right for You?

After extensive testing and analysis, our conclusion is clear: the LawnMaster 48V 46cm Cordless Lawnmower with Battery and Charger is a phenomenal package for anyone with a medium to large lawn looking to ditch petrol and cords for good. Its greatest strength lies in its unparalleled battery system; the inclusion of four 4.0Ah batteries and two fast chargers delivers on the promise of continuous runtime, effectively solving the biggest issue with cordless garden tools. This, combined with a powerful brushless motor, a wide cutting deck, and a versatile 4-in-1 system, makes it a true workhorse capable of replacing multiple older machines.

It’s not without its compromises—the stripes could be deeper, and the grass bag could be easier to attach—but these are minor quibbles in the face of its overwhelming value and performance. It strikes an almost perfect balance between power, convenience, and features. If you have a substantial garden and are tired of the old ways, this mower doesn’t just offer an alternative; it offers a significant upgrade to your entire lawn care routine. We can wholeheartedly recommend it. You can check the latest price and discover more user experiences here.