Black+Decker BCMW3336L2 Cordless Lawn Mower (33cm, 36V, 2 Batteries)

How large a garden can this mower handle?

The BCMW3336L2 lawn mower is built for medium to large gardens. Black+Decker rates it for lawns up to 500 m², with some product data suggesting it can manage up to 600 m² when both batteries are used back to back. To put that in context, 600 m² is roughly the size of three tennis courts. If your garden falls within that range this mower should get the job done without needing to stop and recharge halfway through.

How long does the battery last on a single charge?

Each of the two 36V 2.5Ah lithium-ion batteries gives around 30 minutes of run time according to customer reports. That's not huge on paper, but because two batteries are included in the box you get roughly an hour of total cutting time before needing to plug in. A full charge from the included 1.35A charger takes about 2 hours. One reviewer with a 450 m² plus 100 m² garden managed to mow it all with a single battery in mulching mode on short grass, keeping the second battery as a backup.

What's included when I buy this mower?

The box contains the mower body, two 36V 2.5Ah lithium-ion batteries and one charger. You won't need to buy a separate battery to get started, which is handy since many cordless mowers only ship with one. Assembly is needed on arrival, though several buyers noted the instructions could be clearer on this point. Most still found it straightforward to put together without tools beyond what's supplied.

How do I change the cutting height and what are the options?

There are 5 cutting height positions ranging from 25mm to 65mm. You adjust these using a single shift lever located on the wheel axle, so there's no need to fiddle with individual wheel settings. This makes it quick to switch between a shorter cut for a neat finish or a taller cut during drier periods when longer grass helps retain moisture in the soil.

How wide is the cutting path and what's the blade made from?

The cutting width is 33cm (13 inches), which suits smaller to mid-sized lawns well, letting you manoeuvre around flower beds and tight corners. The blade itself is steel, chosen for a cleaner cut and better grass collection compared with cheaper plastic alternatives. A steel blade also tends to hold its edge longer under regular use.

How big is the grass box and how often will I need to empty it?

The collection box holds 35 litres, which is on the larger side for a mower this size. A bigger catcher means fewer trips to empty clippings, so you can get through mowing a medium lawn without constant interruptions. One French reviewer did note the bag felt small relative to the mower's overall capability, so if your lawn is on the larger end of the 500-600 m² range, expect a few emptying stops.

Is it noisy and can I mow in the evening without disturbing neighbours?

Being battery powered, it runs far quieter than a petrol mower. One owner commented they could almost mow near midnight without complaint, which gives you an idea of how low the noise level is compared with combustion engine models. There's also no exhaust fume to worry about, which matters if you're mowing close to windows or seating areas.

Can the batteries be used with other Black+Decker tools?

Yes. This mower is part of Black+Decker's 36V interchangeable battery platform, so the batteries included with the BCMW3336L2 lawn mower will also work in other Black+Decker 36V garden tools, such as trimmers. This is worth knowing if you already own or plan to buy other 36V tools from the brand, since it means fewer chargers and batteries to keep track of around the house or shed. Weight-wise, the mower itself is light and easy to carry, with overall product dimensions of 76cm in depth, 46cm in width and 43.8cm in height, so storage in a shed or garage shouldn't be a problem.