LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit Review: The Complete Garden Taming Duo?

There’s a unique kind of frustration that comes from a job half-done. For me, it used to be my lawn. I’d spend an hour meticulously mowing, getting the lines just right, only to be defeated by the shaggy edges along the patio and the unruly tufts of grass mocking me from around the flowerbeds. My old corded mower was a heavyweight champion, but my trimmer was a flimsy, underpowered afterthought. They didn’t share a power source, they didn’t share a design philosophy, and the result was a disjointed effort that left the garden looking, well, incomplete. This isn’t just about aesthetics; it’s about reclaiming your weekend. A disjointed toolset means more time wrestling with different chargers, different cords, and different levels of performance. The dream is a single, unified system that works together seamlessly, turning a multi-stage chore into a single, satisfying task. That’s the promise of a complete cordless kit, and it’s precisely what we’re here to investigate.

What to Consider Before Buying a Cordless Rotary Mower Kit

A cordless rotary mower kit is more than just an item; it’s a key solution for achieving total lawn freedom. It liberates you from the tyranny of extension cords, the fumes and maintenance of petrol engines, and the inefficiency of mismatched tools. The primary benefit is synergy. With a shared battery platform, you can mow your lawn, then pop the same battery into your trimmer to perfect the edges without missing a beat. This integrated approach saves time, storage space, and the headache of managing multiple charging systems. It transforms lawn care from a series of separate, clunky tasks into a smooth, flowing process, giving you a consistently beautiful lawn with significantly less effort.

The ideal customer for this type of product is someone facing the challenges of a small to medium-sized lawn (typically up to 300-400 square metres) who values convenience, simplicity, and a polished final look. This includes new homeowners, families looking to simplify their garden chores, and anyone eager to switch from cumbersome corded or petrol models. However, it might not be suitable for those who have exceptionally large estates where the extended runtime of a petrol mower is non-negotiable, or for professionals who require commercial-grade durability for all-day use. For those with very small, simple lawns, a standalone mower might suffice, but they would miss out on the finishing capabilities of a matched trimmer.

Before investing, consider these crucial points in detail:

• Dimensions & Space: The mower’s cutting width (or ‘deck size’) is paramount. A 37cm width, like the one on the LawnMaster, is a fantastic sweet spot for medium lawns, offering a good balance between coverage and manoeuvrability. Also, consider storage. Look for models with folding handles that allow the mower to be stored vertically, saving precious garage or shed space.
• Capacity/Performance: Battery performance is the heart of any cordless system. Look at the voltage (V) and amp-hours (Ah) – higher numbers generally mean more power and longer runtime. A kit with two 4.0Ah batteries, like the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit, is a massive advantage, allowing for near-continuous operation. Also, check the grass collection capacity; a 40L bag is ample for a medium lawn, reducing trips to the compost bin.
• Materials & Durability: Most modern cordless mowers feature a durable plastic deck to save weight. While metal decks offer superior longevity, they are much heavier and prone to rust. The key is the quality of the plastic and the construction. Look for a robust feel, solid wheels, and a high-quality carbon steel blade that will hold its edge for a clean, healthy cut.
• Ease of Use & Maintenance: Simplicity is the goal. Features like a single, central lever for height adjustment are a must-have, far superior to adjusting each wheel individually. Consider the weight of the tools for comfortable operation. Long-term care is minimal for battery mowers—keep them clean, sharpen the blade annually, and store the batteries properly in the off-season.

Ultimately, choosing the right cordless system is about matching the specifications to your lawn’s specific needs and your desire for a convenient, all-in-one solution.

While the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit 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: Unboxing a Complete Lawn Care System

Upon opening the box for the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit, the first thing we noticed was how thoughtfully everything was packaged. This wasn’t just a mower with a trimmer thrown in; it felt like a cohesive system from the outset. Assembly was refreshingly straightforward. The mower’s handles clicked into place with satisfying certainty, and the 40L Redi-bag™ collector attached without any fuss. The trimmer required a simple attachment of the guard. All in, we went from a sealed box to a fully assembled lawn care duo in under 15 minutes, with no tools required.

The build quality immediately instils confidence. While predominantly plastic, the materials feel robust and well-moulded, not flimsy or brittle. The mower has a reassuring heft at 18kg—light enough to manoeuvre easily but heavy enough to feel planted and stable, especially with the rear roller. The bright green and black LawnMaster branding is smart and modern. Placing one of the two MX 24V 4.0Ah batteries into the mower’s housing, we were met with a solid click. It’s these small details that speak to a well-designed product. This initial hands-on experience suggests a product built for user-friendliness right from the start.

Deep Dive: Putting the LawnMaster Mower & Trimmer to the Test

A product’s true character is only revealed through use. It’s one thing to look good out of the box, but another entirely to perform under pressure on a damp Monday morning when the grass has grown an inch overnight. We put the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit through a comprehensive series of tests on a medium-sized lawn with varied conditions—from open stretches to complex borders and overgrown patches. This is where the system truly came to life.

The Power Core: Dual Batteries, Fast Charging, and iPOWER Intelligence

The foundation of this entire kit is the MX 24V shared battery system, and LawnMaster has been exceptionally generous here. Including two high-capacity 4.0Ah batteries and a 1-hour fast charger is a game-changer. In our testing, a single battery provided enough power to mow our entire 250 sq. metre test lawn and still have charge left for trimming the edges. The concept of “near-continuous run time” isn’t just marketing speak. By the time the first battery was depleted, the second was fully charged and ready to go on the fast charger. This completely eliminates the biggest frustration of many cordless systems: waiting hours for a single battery to recharge.

What impressed us most, however, was the iPOWER™ Intelligent Battery Management System. You can hear it working. As we pushed the mower from a thin, dry patch into a thicker, slightly damp section of lawn, the pitch of the motor audibly changed. The system automatically delivered a surge of power to the carbon steel blade, preventing it from bogging down and ensuring a clean cut. Then, as we returned to the thinner grass, it ramped down, conserving energy. This isn’t just clever; it’s practical, maximising the efficiency of every charge. It’s a premium feature that delivers tangible benefits, ensuring you get the most out of each battery without having to manually adjust power settings. This smart technology is a key reason for the kit’s impressive real-world performance.

The Main Event: Mowing, Mulching, and Magnificent Stripes

The mower itself is a joy to use. The 37cm cutting width strikes a perfect balance, wide enough to cover a medium lawn efficiently but nimble enough to navigate around garden furniture and curved flowerbeds. The single central lever for height adjustment is a revelation for anyone used to older, more cumbersome systems. With six distinct settings ranging from a close 22mm cut to a more forgiving 72mm, we could easily adapt to different parts of the lawn. We started higher on an overgrown area before dropping it down for a sharp, clean finish on the main stretch.

The quality of the cut is excellent, but the standout feature is undoubtedly the integrated rear roller. This is what separates a good lawn from a great one. As you mow, the roller flattens the grass behind the blade, creating the classic, alternating light-and-dark striped effect seen on professional pitches. The results were immediate and deeply satisfying. It adds a touch of class that elevates the entire garden. The mower’s weight feels perfectly balanced to press the stripes in effectively without making it difficult to push. For dual functionality, the kit includes a mulching plug. We tested this on a drier section of the lawn, and it worked flawlessly, chopping the clippings into fine particles and returning them to the soil as a natural fertiliser. Switching between collecting in the 40L Redi-bag™ and mulching took less than 30 seconds. The ability to achieve that quintessentially British striped lawn with such an affordable and easy-to-use machine is its biggest selling point.

Finishing Touches: The Versatile 3-in-1 Trimmer

A great mow can be undone by messy edges, which is why the inclusion of the 25cm grass trimmer is so vital. This isn’t just a basic strimmer; it’s a thoughtfully designed finishing tool. The “3-in-1” functionality comes from its clever rotating head, which twists and locks into three distinct positions. The standard position is perfect for general trimming around obstacles. With a quick twist, it turns 90 degrees for vertical edging along paths and driveways. This is where the small, removable guide wheel becomes invaluable, allowing you to run it along the pavement for a perfectly straight and consistent line. We achieved razor-sharp edges that looked like they’d been done by a professional.

The third position angles the head, making it ideal for reaching under low-hanging shrubs or garden benches without having to stoop. The ergonomics are excellent. The main shaft is height-adjustable, and the secondary handle can be moved to find the most comfortable working position. Being powered by the same high-capacity MX 24V battery, it has more than enough power to slice through thick grass and weeds without hesitation. It feels like the perfect companion piece—lightweight, versatile, and powerful enough to ensure that every last corner of your garden looks immaculate.

What Other Users Are Saying

Our positive experience with the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit is strongly mirrored in public feedback. Many users, particularly those new to homeownership or cordless tools, express immense satisfaction. One user noted, “This was our first mower… my husband definitely did his research! He’s really pleased with the mower and strimmer and likes that you can interchange the batteries.” This highlights the kit’s success in appealing to discerning buyers looking for a complete, well-thought-out solution.

The same user confirmed our findings on performance, stating, “The charge time is enough to do our medium sized garden and front lawn and it does a really good job.” Ease of use is another common theme, with comments like, “It’s easy to use and not too loud. I even had a go and could do it!” This reinforces its accessibility for all users, regardless of their prior experience with garden machinery. The overall sentiment points to a product that delivers on its promises of convenience, performance, and excellent value, making it a highly-rated choice among garden enthusiasts.

How Does It Compare? The LawnMaster vs. The Competition

No product exists in a vacuum. To truly understand its value, we need to compare the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit to other popular options on the market. We’ve selected three key alternatives to see how they stack up.

1. LiTHELi Cordless Lawnmower 33cm

The LiTHELi mower is a solid budget-friendly option for those with smaller lawns. Its main differentiator is its more compact 33cm cutting width and smaller 30L grass box. It operates on a 20V system with a single 4.0Ah battery. While it features a brushless motor for efficiency, it lacks two key features of the LawnMaster: the rear roller for stripes and the included trimmer. This makes it a standalone mower rather than a complete lawn care system. Someone might prefer the LiTHELi if they have a very small, simple lawn, are on a tighter budget, and already have a separate tool for edging or don’t require that level of finish.

2. Yard Force 40V Cordless Lawn Mower 32cm

The Yard Force mower presents an interesting trade-off. It boasts a more powerful 40V battery platform but features a significantly smaller 32cm cutting width. Crucially, it includes a rear roller, making it a direct competitor for those whose primary goal is achieving a striped lawn. However, it is just a mower. It doesn’t come bundled with a grass trimmer, which would be an additional purchase. A buyer might opt for the Yard Force if they prioritize raw power in a very compact package for a small but complex lawn and are willing to purchase a separate trimmer, potentially from a different battery ecosystem.

3. swift 40V Cordless Lawnmower 32cm

Similar to the Yard Force, the swift mower runs on a powerful 40V system and has a compact 32cm cutting deck. Its key feature is its excellent mulching capability, alongside standard grass collection. However, it does not have a rear roller, so it cannot create the striped effect that is a major selling point of the LawnMaster. It also comes as a standalone unit without a trimmer. This model would be the preferred choice for a user with a smaller lawn who values high power and effective mulching above all else and is not concerned with achieving a striped finish or the value of a bundled kit.

The Final Verdict: Is the LawnMaster Kit Right for Your Garden?

After extensive testing, we can say with confidence that the LawnMaster 37cm Cordless Lawnmower & 25cm Trimmer Kit is more than just a collection of tools; it’s a complete, intelligently designed lawn care system that offers exceptional value. Its greatest strength lies in its synergy. The shared dual-battery platform with iPOWER technology, the mower’s perfect balance of size and features—especially that fantastic rear roller—and the versatile 3-in-1 trimmer all work in harmony to take the chore out of garden maintenance.

This isn’t the most powerful commercial-grade machine, nor is it the cheapest standalone mower. Instead, it occupies a brilliant middle ground, making it the ideal choice for first-time buyers and anyone with a small to medium-sized lawn who wants to achieve a professional-looking finish without the hassle and expense of buying separate tools. It simplifies, streamlines, and delivers results that will make you proud of your lawn. If you’re ready to ditch the cords and embrace a unified system that does it all, we wholeheartedly recommend this kit. You can check the latest price and see its full feature set right here.