The complete guide
Choosing a 40V Cordless Lawn Mower for Your Garden
A simpler way to cut without a trailing cable
Mowing can become awkward when a power cable needs moving around trees, beds and garden furniture. A petrol mower brings a different routine, including fuel handling. A battery mower offers another way to manage regular lawn care, provided its cutting width, weight and battery supply suit the space.
The Greenworks G40LM35 is a 40V cordless lawn mower supplied with two 2Ah batteries and a charger. It has a 35cm cutting width and a stated lawn coverage of up to 400m². You can collect clippings or mulch them back into the grass.
Those features give you a useful starting point. Before choosing it, look beyond the headline coverage figure. Your lawn's shape, the length of the grass and the route from storage to garden all affect how well a mower fits daily life.
What comes with this kit
This is a mower kit rather than a bare tool. The listed contents are one Greenworks G40LM35 mower, two G40B2 40V 2Ah lithium-ion batteries, a G40C charger and instructions.
For someone buying their first Greenworks battery mower, having the batteries and charger listed together makes comparison easier. You can compare the whole package rather than finding separate components. If you already own Greenworks tools, check their exact battery compatibility before assuming your existing equipment will work.
The supplier describes these batteries as suitable for Greenworks 40V tools. That does not mean they fit every product carrying the Greenworks name. Match the battery model and tool requirements, especially when comparing different voltage systems.
The record does not give charging time or charger plug details. If either matters to your setup, confirm them before ordering.
How the 35cm cutting width affects mowing
Cutting width is the width of the strip cut during each pass. Here, it is 35cm. On an open lawn, a wider mower can cover the same ground in fewer passes. A narrower cutting width may be worth considering where the layout includes separate patches or closely spaced features.
Still, cutting width is not the same as overall machine width. You should not use the 35cm figure to decide whether the mower will fit through a gate or between stored items. Overall dimensions are not supplied.
Think about your usual mowing route. Is the lawn one open rectangle, or does it wrap around paths and beds? A 35cm cordless mower may fit your preferred working pattern, but access and turning space deserve as much attention as total lawn area.
Understanding the up-to-400m² coverage claim
The supplier presents this model as suitable for lawns up to 400m². Treat that as a guide, not a guaranteed result for every garden.
Long grass asks more of a mower than short grass that is cut regularly. Dense growth can also change how much work a battery charge provides. Stops, turns and repeated passes affect the time you spend mowing, even when the lawn area stays the same.
One technical field lists an 80-minute battery average life. It does not say how that was measured or whether it refers to the pair of batteries. It would be unwise to plan your routine around a fixed 80-minute session.
If your lawn is close to the stated maximum, leave room for changing conditions. A lawn that is easy to cut in one season may be heavier work during a period of fast growth.
Collecting clippings or mulching them
The mower offers two ways to deal with cut grass. Collection sends clippings into a rear collector for you to empty. Mulching cuts grass into smaller pieces and returns them to the lawn.
Collection may suit you when you want to remove loose clippings from the surface. It does add a task, since the collector needs emptying as you work. Think about where the clippings will go and how far you will need to carry them.
Mulching avoids collecting every load of grass. It works as part of a regular mowing routine, with the exact setup and operating advice set out in the manual. Do not assume that every grass condition suits the same method.
There is one specification to check here. The supplier information describes both a 40L and a 50L collector. A cordless grass collector mower may suit your needs, but the capacity of this kit is not confirmed consistently.
Choosing a cutting height
This mower has five cutting-height positions controlled by a single lever. That gives you a way to change the cut without making separate adjustments at each wheel.
The exact height range needs checking. The supplier's feature text states 25mm to 70mm, while its technical fields give 8cm as both the minimum and maximum. Those entries do not agree, so neither range should be treated as settled.
If you need a particular cutting height, ask for confirmation before buying. This matters more than simply knowing that a mower has five settings. Five positions describe the number of choices, not the lowest or highest cut.
For general lawn care, avoid trying to remove too much growth in one pass. Follow the mower instructions and adjust your routine to the condition of the grass rather than always using the lowest setting.
Weight, pushing and garden access
The listed weight is 15 kg. The supplier does not explain whether this includes batteries and the collector, so use the figure with that limit in mind.
Operation is listed as manual, with no stated powered drive. Treat this as a push battery lawn mower. You will need to guide and push it across the lawn rather than rely on a self-propelled system.
Consider more than mowing effort. A step outside the shed, a gravel path or a raised storage threshold may be the harder part of using a mower. If lifting is likely, decide whether the listed weight is practical for you.
The rear wheels are described as 18cm. No safe slope limit is supplied. Check the manual for slope restrictions rather than assuming wheel size makes a mower suitable for steep ground.
Storage and the folding handle
A folding handle can help when storage space is tight. It reduces the space taken by the handle when the mower is put away, but it does not tell you the machine's folded footprint.
Measure the space where you plan to keep the mower. Allow room to move it in and out without catching the handle or damaging nearby items. Since overall dimensions are missing from this record, confirm them if your storage space is a close fit.
You will also need a suitable place for the batteries and charger. Follow their instructions for dry storage, temperature and charging. Avoid treating an exposed garden corner as a substitute for proper storage.
A mower with folding handle is useful only if the folding process and storage arrangement work for you. Check the manual before folding, lifting or placing the mower in a new position.
Preparing for the first cut
Although the supplier says no assembly is required, that does not remove the need for setup checks. Read the supplied instructions before charging batteries or operating the mower.
Check that all listed parts are present. Look for visible damage and confirm that the collector or mulching setup is fitted as instructed. Make sure you understand the controls and the stopping procedure before starting.
Walk over the lawn first and remove loose objects. Keep children and pets away from the working area. Wear suitable footwear and follow the manual's safety advice throughout use.
Plan the job for suitable weather. This record does not establish permission to mow wet grass or operate in rain. Dry conditions are a sensible basis for routine planning, subject to the manufacturer's directions.
Keeping the mower ready for regular use
Grass buildup can make cleaning harder if left after repeated cuts. Once mowing is finished, switch off, remove the battery and wait until moving parts have stopped before inspecting or cleaning the machine.
Use the cleaning method set out in the manual. Do not assume that a battery mower can be washed with a hose. Keep hands clear of the blade and arrange service if you find damage or wear.
Check the collector and visible fasteners as part of your routine. Battery care matters too, especially before a long period without use. Follow the instructions for storage charge and temperature rather than guessing.
The supplier lists a three-year product warranty and a two-year battery warranty. Confirm local terms and support arrangements, and keep your purchase record.
The short version
The Greenworks G40LM35 combines a 35cm cut, two included 40V 2Ah batteries, a charger, mulching and rear collection. It is worth comparing if you want a battery mower for a medium lawn and can comfortably manage a listed 15 kg machine.
Before ordering, confirm collector capacity, cutting-height range and any dimensions needed for access or storage. Check delivery, returns and warranty terms too. The right choice is the mower that fits your garden and routine, not just the one with a matching lawn-area claim.