Greenworks G40LM35K2X Lawn Mower – Full Review & Buying Guide

Greenworks G40LM35K2X

Last Updated on February 9, 2026

When it comes to cordless lawn mowers that combine dependable performance with eco friendly convenience, the Greenworks G40LM35K2X Lawn Mower stands out as a top contender. Whether you’re a first-time buyer or looking to upgrade your current mower, this model offers a great balance of power, simplicity and ease of use perfect for maintaining a healthy, well groomed lawn without the noise, fumes or hassle of traditional gas machines.

In this full review and buying guide, we’ll take an in depth look at the Greenworks G40LM35K2X’s features, performance, pros and cons and how it compares to similar options on the market. By the end, you’ll know whether this mower is the right fit for your yard and mowing style. From runtime and cutting ability to usability and value, let’s explore what makes this model worth considering.

Best Value: Dual-Battery Kit

Greenworks 40V Lawnmower with Dual Batteries

Perfect for small-to-medium lawns and easy storage
8.3/10
EXPERT SCORE

You get a well-balanced cordless mower kit that removes the hassle of cables and petrol without sacrificing cut quality for typical suburban lawns. It’s easy to handle, stores compactly, and the twin batteries provide useful redundancy, though very large gardens may need additional battery capacity.

Amazon price updated: February 9, 2026 9:40 am
Battery life & run time
8
Cut quality & adjustability
8.5
Maneuverability & storage
9
Build quality & long-term durability
7.5
Pros
Comes as a complete kit with two 40V battery packs and a charger
Quiet, emission-free operation — great for suburban use
Lightweight and easy to manoeuvre with fold-flat handle for storage
Five cutting heights plus mulch-or-collect flexibility
Good cutting performance for small- to medium-sized lawns
Generous 3-year tool warranty and 2-year battery warranty
Cons
Battery runtime can be tight for larger lawns without a third pack
Some plastic components and fasteners feel budget-grade
40L collection bag fills relatively quickly on longer grass

Overview

You’re looking at a compact battery-powered mower designed to replace many petrol and corded electric models for small and medium lawns. The machine is built around a 35 cm cutting deck, a 40 L grass collector, and a twin-battery supply — a package intended to deliver cordless convenience with enough runtime for lawns of up to around 400 m² under normal conditions.

Key design goals are simplicity, low noise, and low maintenance: no fuel mixing, no spark plugs, and no trailing cable to get tangled. The mower’s controls are intentionally straightforward so you can start and cut with minimal setup and fuss.

Powertrain and Runtime

The mower draws power from two bundled lithium battery packs. In practice this means you can alternate packs or use both to maximise runtime without waiting for a recharge. The batteries supply high instantaneous torque to the cutting blade, so you won’t notice the power-drop typical of weaker cordless mowers when working through slightly longer or damp grass.

Benefits of the dual-battery approach:

Redundant power: if one pack runs low you can swap or continue with the second.
Faster turnaround: a spare pack removes downtime while one charges.
Compatibility: the battery packs are usable across the same 40V tool range if you own other Greenworks 40V tools.

Performance expectations:

Typical run time per 2Ah pack will vary with grass length, blade height, and terrain. For a well-kept lawn up to ~250–400 m² you’ll generally finish with one or both packs depending on mowing style.
Thick long grass or repeated passes (e.g., stripe patterns) reduce run time and increase bag fill frequency.

Cutting Deck, Blade, and Height Adjustment

The 35 cm cutting width is a good compromise for those who want shorter job times than a 30 cm machine and better access around obstacles than larger decks. The mower offers a multi-position height adjustment that covers typical lawn heights, so you can mow low for tidy lawns or raise the deck for summer or patchy turf.

Key features:

Range of cutting heights giving control from short trim to longer summer settings.
Option to mulch clippings back into the turf or collect them in a 40 L bag for tidy finishes.
A factory-sharpened blade that delivers a clean cut when used and maintained correctly.

Handling, Ergonomics, and Storage

You’ll find this mower easy to manoeuvre: it’s relatively light compared with petrol equivalents and benefits from tall rear wheels that make rolling over slight bumps and uneven ground straightforward. The top handle is comfortable for typical mowing sessions, and the simple folding mechanism lets you store the unit in tighter spaces.

Advantages for everyday use:

Light mass reduces user fatigue during push-mowing and when lifting into storage.
Fold-flat handle saves space; useful for sheds and communal storage areas.
Large rear wheels improve tracking and make cornering around beds easier.

Durability, Materials, and Common Wear Points

Greenworks keeps the price competitive by combining metal and engineered plastics. The chassis and critical load-bearing parts are engineered to balance weight and strength, but several reviewers highlight that some adjustment levers and fasteners feel less robust than premium models. That’s not unusual in this price bracket, but it’s worth noting if you plan to subject the mower to heavy daily use.

Maintenance expectations:

Regular blade inspection and sharpening keep the cut tidy and reduce stress on the motor.
Empty the collection bag frequently if you don’t choose to mulch, and clean under the deck to prevent build-up.
Keep the battery contacts clean and store packs in a cool, dry place for best long-term health.

Accessories, Warranty, and What’s in the Box

What you receive straight out of the box is designed to get you cutting quickly: a mower, two battery packs, a single charger, a fitted collection bag, and the mulching plug/adapter.

Included items:

Two manufacturer-supplied 40V lithium battery packs
Single charger capable of charging packs in regular cycles
40 L grass collection bag
Mulching plug for returning clippings to the turf

Warranty: The mower is supported by a multi-year guarantee on the tool and a separate battery warranty term. This gives you reasonable consumer protection against manufacturing defects and early-life failures.

Technical snapshot (concise table)

SpecValue
Cutting width35 cm
Grass collector40 L
Batteries includedTwo 40V 2Ah packs
ChargingSingle charger included
Height adjustmentsMultiple positions (low to high)
Typical target lawn sizeUp to ~400 m² (varies with conditions)

Tips to Get the Best Results

Mow at the correct height for your grass species; lower cuts stress turf and increase clipping volume.
If you want continuous mowing on larger plots, invest in an extra battery pack rather than relying on a single recharge.
Use mulching for nutrient return on healthy lawns; use collection if you want an ultra-clean finish or to remove excessive clippings.

Who should consider this mower?

Homeowners with small to medium lawns seeking a low-noise, low-maintenance alternative to petrol machines.
People who value easy storage and quick start-up without fuel or extension cables.
Anyone already invested in the Greenworks 40V battery ecosystem who wants cross-compatibility.

Final thoughts

When you prioritise convenience, quiet operation, and a complete kit that includes spare batteries, this mower is an excellent proposition. It balances performance and value for typical suburban lawns, but if you routinely tackle very large areas or heavy overgrowth, plan for additional battery capacity and more frequent grass-bag emptying. For most users aiming for tidy, reliable mowing with minimal fuss, it’s a practical and cost-effective choice.

Greenworks 40V Lawnmower with Dual Batteries
Greenworks 40V Lawnmower with Dual Batteries
Perfect for small-to-medium lawns and easy storage
Save 10% at checkout
£299.99
£179.99
Amazon.co.uk
Amazon price updated: February 9, 2026 9:40 am

FAQs

How long will the batteries actually last on a typical suburban lawn?

Runtime depends on grass length, cutting height and terrain. With the included 2Ah packs you can typically mow a well-kept lawn of a few hundred square metres on one or two batteries. For patchy, long or wet grass expect shorter runs and plan on swapping in a fresh pack or charging between sections.

Can you use just one battery if you want to save power or reduce weight?

Yes — the mower will run on a single battery, which can be useful for very small lawns or lighter work. Using both batteries provides either longer runtime or increased power under load, so choose based on yard size and grass conditions.

Is mulching good for my lawn, or should I always collect clippings?

Mulching returns nutrients to the soil and helps maintain moisture, which benefits many healthy lawns. However, if you have heavy thatch, disease, or are mowing long growth, collecting clippings helps keep the surface tidy and prevents smothering the grass.

How much maintenance does a battery mower need compared with petrol models?

Battery mowers avoid petrol engine maintenance tasks like oil changes, filters, and spark plugs, so day-to-day upkeep is simpler. You still need to inspect and sharpen the blade, clear the deck, and care for batteries (clean contacts and store correctly) to maximise longevity.

Will the mower handle uneven ground and small slopes?

Yes — the relatively large rear wheels help negotiation of mild slopes and uneven surfaces. Avoid steep inclines and very rough terrain that would overload the motor or increase wear on the cutting deck.

Are the batteries compatible with other Greenworks tools?

The included packs are part of Greenworks’ 40V platform, so they can typically be used with other tools from the same range, offering flexibility and potential savings if you already own compatible tools.

Conclusion

The Greenworks G40LM35K2X Lawn Mower delivers a solid combination of convenience, performance, and eco-friendly operation, making it an excellent choice for most homeowners. Its cordless design and reliable battery power eliminate the hassle of gas engines, while still providing a smooth, consistent cut for small to medium-sized lawns. With easy push-button starting, low maintenance needs, and quiet operation, it’s a mower that makes yard work simpler and more enjoyable.

If you’re looking for a dependable electric mower that strikes a great balance between power, ease of use, and value, the Greenworks G40LM35K2X is hard to overlook. While it may not replace heavy-duty gas models for very large or challenging terrain, it’s more than capable of handling everyday lawn care with minimal fuss. Overall, it’s a smart, efficient choice for anyone seeking an eco-friendly lawn mower that gets the job done.

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