Best Cordless Lawn Mowers for Large Lawns 2022 with FAQs

Modern cordless lawn mowers are a good option for bigger lawns, thanks to recent improvements in lithium-ion battery technology, but you will need to make sure that you choose the right model. You’ll likely need something with a wider cutting width as well as a higher voltage/Ah machine to ensure the correct power and runtime. Owners of large gardens will also need to ensure that the mower they choose has a good battery life, so that they aren’t interrupted by a depleted battery in the middle of the mowing session. To learn more see my article What Should I Look For In A Cordless Lawn Mower?

A good quality cordless lawn mower should last around five years when it is well maintained. Of course, with a larger garden, you will be getting more use out of the machine so it may wear a little sooner than if you were mowing a smaller area. That said, with correct maintenance and care, there’s no reason your mower shouldn’t stand the test of time.

Price should never be the determining factor when choosing a cordless lawn mower, but it is a good idea to understand what you can get for your budget. The cost of a cordless lawn mower will vary greatly from brand to brand and according to what features the mower has. At the lower end of the scale, you might expect to be able to pick up a battery lawn mower for as little as £150-£200. However, for higher build quality mowers with superior batteries, some of which are self-propelled, you can end up paying up to and beyond £1000. For mid-range cordless mowers you can expect to pay around £400.

There are many excellent manufacturers of cordless lawn mowers and it would be wrong of me to tell you that any one reigned supreme. However, some of the best brands include Ryobi, Hyundai, Gtech, Stihl and Cobra. It is a good idea to research a brand to make sure that they are reputable, make quality mowers and have an adequate supply of readily available spare parts such as replacement blades, but it’s also essential to look at other features such as cutting width and run time to determine whether the mower is best for your large garden. To learn more see my article What Makes A Good Cordless Mower.

It can be difficult to determine whether your lawn is classed as “large” without having exact measurements. However, generally speaking, anything bigger than the size of two tennis courts would be considered large. On the other hand, anything smaller than half a tennis court would be considered a small lawn, leaving anything between these sizes, a medium lawn. If you would like to learn how to quickly measure your garden using Google Maps, check out my video below. You can then compare the exact measurements to the chart below showing the deck size required for your square meterage. *A tennis court is around 260m².

The cutting width of your lawn mower dictates the size of the area covered in each pass. For larger gardens, you need something that will cover a larger area in each pass as this will make the job quicker and more efficient. Generally speaking, for cordless lawn mowers, anything over 40cm would be suitable for a large lawn. That said, some people may find that a larger 51cm mower is a better choice. In addition, you will also need to ensure that you look at other features such as the number of cutting heights and cutting options to ensure they are aligned to your requirements.

If you have an extremely large garden and want a mower that will make light work of keeping it tidy, then you’ll need one of the biggest lawn mowers. Cordless lawn mowers don’t usually exceed about 51cm here in the UK, although there are some commercial walk-behind mowers out there that have larger deck sizes. For domestic use, it is at this point that you may want to consider a ride on mower that offer larger deck sizes.

The battery for your cordless lawn mower will typically last up to 500 charges. The time that this covers depends on how often you use the battery but as a rule of thumb, this would mean that the battery would last between three and five years. In terms of running time, cordless mowers differ greatly. When choosing a mower for a large lawn, you will need to select one whose running time is at least between 45 and 60 minutes. The other option is to purchase extra batteries.

You will often see a cordless lawn mower being advertised as ‘brushless’ this is in reference to the motor. A brushless motor does not have brushes which on brushed motors can wear out over the course of time meaning more maintenance. Furthermore, a brushless motor provides a more reliable, quieter and smoother experience and will adjust the power according to the task at hand.

The great thing about choosing a cordless lawn mower for your large garden is that it won’t require anywhere near as much maintenance as a petrol mower. You will need to keep the blades clean and ensure good charging practises, but other than that, they’re very simple to run. Learn more by reading my article Electric and Cordless Lawn Mower Maintenance.

After mowing your large garden, your cordless mower may be in need of a clean, but unlike some petrol mowers that have hose ports, you cannot use water on a battery powered lawn mower. If water gets into the motor, this will cause corrosion which will ultimately end the life of your mower and you’ll need to purchase a replacement. Stick to using a soft, dry brush to remove grass and other debris. However, there are a few exceptions, Hayter and Mountfield both offer cordless mowers with hose wash ports, so something to consider if this is a feature you would find beneficial. Always consult the operating instructions for safe ways to clean your mower.

The main thing you should be looking for in this instance is a mower with higher Ah batteries and higher voltage. This ensures maximum power and run time so that you won’t need to stop in the middle of mowing your lawn. By virtue of having a large lawn you are going to need some stamina to get the job done in one go. It is therefore worth considering a self-propelled cordless lawn mower that is going to remove the hard push out of mowing your lawn. As well as being self-propelled you may also want to consider a variable speed model to ensure that you can operate at a pace that is suitable to you personally. (don’t want to feel that the mower is running away from you OR being too slow)