The 40V 37cm Cordless Lawn Mower from Yard Force runs on two 20V 4.0Ah batteries for a combined 40V output. It's built for medium-sized gardens and cuts a 37cm width with a steel blade. The brushless motor gives better efficiency and longer battery life than standard motors.
Front and side combs guide grass towards the blade for a clean edge finish. Torque Sensing Boost technology adjusts power automatically when the grass gets thicker, so cutting stays consistent.
Seven cutting heights range from 25mm to 75mm, adjusted with a simple push mechanism. A 40L grass bag collects clippings, or switch to the mulching plug instead. The rear roller presses the lawn for a striped finish and handles fold flat for storage.
The 40V 37cm Cordless Lawn Mower has a 37cm steel blade with a cut-to-the-edge design. This means you can get close to borders and fences without leaving a strip of uncut grass. There are 7 cutting heights to pick from, ranging from 25mm to 75mm. You adjust these using a Push & Adjust system, so no tools are needed. Short grass in spring? Set it low. Longer grass or dry weather? Raise it up. This range covers most lawn conditions throughout the year.
This mower uses 2 x 20V 4.0Ah batteries that combine for a 40V output. One customer with a fairly large lawn reported the battery "lasts perfectly" and cuts the whole area in one go. Another customer noted that with 2 batteries it "doesn't last too long" when used heavily. Actual runtime depends on grass length, moisture and how often you mow. Both batteries are part of the Yard Force CR20 Range, so they can be swapped with other compatible CR20 garden tools if you own them.
The 37cm cutting width and brushless motor make this a good fit for small to medium gardens. One reviewer said they have "a fair size lawn" and it "cuts the whole lawn very easily." Another mentioned using it on roughly half of a 20m x 10m lawn in one charge. If your lawn is much larger than this you may need to recharge or swap batteries partway through mowing.
You get two collection options with this machine. The 40L grass collection bag gathers clippings as you mow, which is handy if you want a tidy finish straight away with nothing left on the lawn. The mulching plug instead chops clippings finely and returns them to the soil. This can feed nutrients back into the lawn over time, though it does leave the clippings on the grass rather than collecting them. Both fit the same mower, so you can switch depending on the season or how long the grass is.
Yes. There's a rear roller fitted, which presses the grass down as you mow in opposite directions on each pass. This is what creates the classic light and dark striped pattern you see on football pitches and formal lawns. It's a feature not all cordless mowers include, so it's worth noting if you want that finished look rather than just cut grass.
The mower weighs 14kg and measures 68cm long, 44cm wide and 32cm high. One reviewer said it felt "slightly heavier than our old mower" but added that it "runs so smoothly you don't really notice." For storage, the handles fold down, which reduces the overall footprint. This is useful if you keep it in a shed or garage with limited space.
Yes, some assembly is required when it arrives. Based on customer feedback, this isn't complicated. One reviewer called it "easy to assemble and use" and another said it was "easy to put together." You'll need to attach the handles and fit the grass collection bag or mulching plug before first use. No tools beyond what's included should be needed.
Most feedback is positive, with a 4.1 star rating from reviewers. The brushless motor and Torque Sensing Boost technology were praised for cutting power that one user said matched a corded mower. However, one customer reported a problem with the rear roller's plastic clip splitting after use on a 20m x 10m lawn used at 50% capacity. They noted this particular model may have limited replacement parts available if you need one, so it's worth checking part availability with Yard Force directly if this is a concern. Overall, most users found it reliable with no complaints about build quality.
| Specification | Details |
|---|---|
| Product Name | Yard Force 40V 37cm Cordless Lawn Mower |
| Model Number | LM C37B |
| Brand | Yard Force |
| Power Source | Battery Powered |
| Battery Configuration | 2 x 20V 4.0Ah |
| Combined Battery Output | 40V |
| Compatible Battery Range | CR20 Range |
| Motor Type | Brushless Motor |
| Motor Features | Efficiency, Power, Longer battery life, Torque Sensing Boost technology |
| Cutting Width | 37 cm |
| Cutting Blade | 37cm steel blade with cut-to-the-edge design |
| Cutting Height Positions | 7 |
| Cutting Height Range | 25-75 mm |
| Cutting Technology | Front and side combs guide grass efficiently |
| Operation Mode | Automatic |
| Grass Collection Options | 40L grass collection bag, Mulching plug |
| Rear Roller | Included for striped lawn finish |
| Handle | Foldable for compact storage |
| Dimensions (L x W x H) | 68 x 44 x 32 cm |
| Weight | 14kg |
| Material | Plastic |
| Colour | Orange |
| Number of Items | 1 |
| Assembly Required | Yes |
| Country of Origin | China |
| Manufacturer | Sumec |
| Manufacturer Part Number | LM C37B |
| Operation | Automatic |
| Max Adjustable Cutting Height | 75 mm |
| Min Adjustable Cutting Height | 25 mm |