Cordless Battery Powered Mowers

The Latest and Best

 Tested and Reviewed by Fred-in-the-shed

Updated 5th March 2025

This page is for UK based gardeners

(Click here for Mowers available in the USA)

Here I am testing the Gtech Falcon, Flymo Mighti-Mo and Bosch Rotak 37Li

Battery Powered mowers have been around for decades. They were originally designed for small lawns, or those far away from mains power.

But they were very heavy like this Webb battery mower I used 40 years ago.

The first version of the Bosch Rotak 37Li - tested in my garden in 2007, and still working.

Today, thanks to new battery technology, cordless mowers can cut large lawns.

They are also safer as the lack of cable reduces the risk of tripping & electrocution.

All of the links on my site are affiliate links that pay a small commission from the retailer on completed sales.

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Best Cordless Electric Rotary Mowers

 

	Best Cordless Mower ? The Bosch Rotak Li Range    BOSCH ROTAK - VERSION 2 - WITH GRASS COMBS & ERGO HANDLES (Version 3 with super quiet motor out now -see further down page)   Bosch pioneered the breakthrough in battery technology for mowers The Bosch Rotak Li launched in 2007 and was the first mower to have a lithium-ion battery. I had one of the first and it still works today - (but the battery is not 100%) The Bosch Rotak 37Li was the first cordless mower that I was happy to use without a backup mains mower due to its lightweight but very powerful 36v Lithium Ion rechargeable battery. With its exceptionally well engineered grass box and blade the Rotak cuts AND collects better than any cordless mower I know. The inset front wheels and side fins enable these mowers to cut right to the edge. The plastic body is light but tough and the rear roller is a feature that is missing on most other cordless mowers. An optional mulching panel is available as are special blades for chomping up fallen leaves. Bosch give a genuine 2 year warranty on their mowers but you can extend this to 3 years for free by registering your purchase within 4 weeks on the MyBosch website. In 2014 I visited the Stowmarket factory and was very impressed with the attention to detail and quality control measures implemented. Sadly Bosch closed the old Qualcast factory in 2019. Here I am inspecting the Bosch Rotak production line in Suffolk. I was impressed how every completed box is weighed so they know that no parts are missing. DIFFERENT MODELS IN THE BOSCH ROTAK LI RANGE The Rotak Li was available in 3 sizes of cut, 32cm, 37cm and 43cm cut. After 2020 only the Rotak 32Li will be available.   The 36v battery is similar to the ones used in Bosch professional power tools like builders' drills so it is well tried and tested. My original one has lasted 13 years so far and is still going -but low on capacity.  The 32li is being replaced by the Bosch City Mower which is only 18v but comes with a 4 amp hour battery, or can be supplied without battery and charger if you already own Bosch Power 4 all products. The City Mower is ideal for lawns under 300sqm. However, you could use the City Mower on larger lawns if you have multiple batteries. Bosch 36v Battery Options The original battery was 2.6 amp hour and then increased to 4 amp hour 2 different Bosch 36v batteries are available - use links below for genuine Bosch 36v batteries. Bosch 36 V Battery 2.0 Ah  Bosch 36 V Battery 4.0 Ah   The Rotak 37Li (370 Li) and 43Li (430Li) have been discontinued. Bosch Universal and Advanced Rotak Li - New Generation 3 Models The new mowers have quieter motors and are available with the standard 36v 2 amp hour and 4 amp hour batteries, and in the largest 850 model 6 amp/h. Other new features are handle height adjustment and a folding grass box. They are called the Easy Rotak, Universal Rotak and Advanced Rotak. Only the Advanced models have rear rollers for stripes. Bosch make great mowers but their model numbers are always confusing. The numbers in the new ranges relate to how many square metres they can cut on one charge, rather than blade width. So the Advanced Rotak 36-750 Li has a 36v motor and can cut up to 750m square of lawn. The cheapest model is the EasyRotak 36-550 Li and can cut up to 550m square of lawn. However most people don't know their lawn size in square metres and the amount of cutting that can be done largely depends on the length of the grass at the time. So if you need help choosing send me a low res image of your lawn or description.   Bosch EasyRotak 36-550 2 x Battery 2.0 Ah , Cutting Width: 37 cm, Lawns up to 550 m2 Bosch UniversalRotak ( no roller) 36-550 Cordless Lawnmower with 36 V 4.0 Ah Lithium-Ion Battery Bosch AdvancedRotak 36-750 Cordless Lawnmower with 36 V 4.0 Ah Lithium-Ion Battery   New Model For 2025 37cm blade,  with 2 x 18V 4.0 Ah Lithium-Ion Batteries   If you are confused e mail fred@fredshed.com for advice on which model is best for you UK ONLY AND GIVE LAWN SIZE, BUDGET OR A SMALL IMAGE OF YOUR LAWN PLEASE   Other Bosch 36v tools that use the same 36v battery system  Bosch Advanced Hedge Cut, 36 V, 540 mm blade length, 20 mm tooth opening Bosch 36v Advanced Grass Trimmer  Bosch ALB 36 LI 36 V Cordless Lithium-Ion Leaf Blower  Bosch give a genuine 2 year warranty that you can extend to 3 years for free by registering your purchase within 4 weeks on the MyBosch website. Return to top of page
	Flymo 40v Cordless Mowers This is the 34cm cut Flymo cordless mower being tested on my lawn in Oxford. There are 2 40v versions, one with 2x 2 amp hour batteries and the other 2 x 2.5 amp hour batteries. The mowers are very good but I am not impressed with the batteries. I am looking into the spec and issues with the batteries so until I have answers will not be providing links. Lithium Ion batteries vary in quality and I tend to like ones that can be used in big range of other products. Worx, Makita, Greenworks, Bosch and Lawnmaster batteries can be used in dozens of their tools which can be bought naked to save you money.     Return to top of page   SELF-PROPELLED CORDLESS MOWERS SELF-PROPELLED OR HAND-PROPELLED CORDLESS MOWERS ? Which to Choose? Self-propelled means self-driving - it powers itself along, unlike push-along or hand-propelled mowers. Self propelled mowers tend to be large and are great for wide open lawns but can be awkward to manoeuvre in tight spaces due to the drive controls and extra weight. Most Self propelled cordless mowers do not have a roller, the few that do tend to cost a lot more. Battery powered Self-propelled mowers will have at least a 36v Lithium-ion battery and often an even more expensive 60v or even 80v battery. If you lack some strength or agility then you may actually be better with a lighter weight battery mower that you push. The Bosch Rotak mowers are light enough for me to push from a wheelchair but strong enough to last 10 years. If you need a self propelling mower for a REALLY large lawn I would consider petrol until the price of large Li-ion batteries comes down. I tried the first self propelled battery mower in 2011, the CEL DM20. It had 2 separate motors, powered by a huge 17 amp hour lead acid battery, the size of a suitcase. Not surprisingly it was quite hard to handle.   Stihl RMA 443 TC is the largest of the 5 Stihl Cordless mowers One of the best self propelled cordless mowers is the Austrian made Stihl RMA 443TC that I am currently testing. This model uses a 36v Li-ion battery from the Stihl Pro range and uses one battery to power the drive and blade. It has 2 battery slots so you can keep a spare in place. Using both batteries will cut up to 450 sqm of lawn depending on how level your lawn is and how long your grass is. I should say that the batteries are made in China but by a company that Stihl partly own. This is the biggest of the 5 Stihl cordless mowers with its 19 inch (46cm) cut and the fantastic folding, height adjustable, mono handle. You cant buy Stihl mowers online as they are only sold from machinery dealerships where you get trained in using it and excellent service. You can buy other self propelled mowers online from the Hyundai, Cobra, Mountfield and Ego brands.  Hyundai 40v Lithium-ion Cordless Self Propelled mower, 42cm Cutting Width, Includes Battery & Charger Hyundai 80V Li-Ion Cordless  Self Propelled Mower 18” Cutting Width With Battery & Charger, 3 Year Warranty  Greenworks Cordless Mower 40 V 46 cm Cutting Width  3in1 Mulching Self-Propelling Side Discharge 5 Setting Without Battery & Charger)   Or - have you considered a Robot Mower? I have been using these for over 20 years now and they are now viable for very large lawns. The one I am with above has a V8 engine and was a promotional aid for Friendly Robotics.  If you want my page about real Robot mowers use this link Robot Mowers   Return to top of page
	GTECH FALCON TESTED AND REVIEWED BY FRED The Gtech Falcon is made in China but designed by Nick Grey, the British owner of Gtech. The first model cost around £349 and gave a 43cm cut  from it's 36v 4 amp hour battery. In 2019 the model was changed to a 48v battery, but only 2 amp hours so it is actually less powerful. The Gtech mowers look stylish and have some good features like the fold-over handle for better storage. It also has easy sliding handle height adjustment. There are 2 downsides to this mower, apart from the price. The battery can only be used in this Gtech mower, unlike most other cordless mowers that are part of a range. The Gtech falcon does not have a rear roller to make stripes on your lawn. The Falcon has now been replaced with the CLM50, now white but otherwise the same. Alternatively the same size Mountfield Princess has a rear roller, mulch plate, is made in Slovakia and is £100 cheaper! Gtech CLM50 42cm cut cordless mower Mountfield Freedom 500 Princess 42LI c/w 1 x 4Ah Battery Rear Roller 42cm cut (New Model 2021)   The Murray mower on the link below has a wider (44cm) cut but no rear roller Murray 2 x 18 V (36 V) Lithium-Ion 44 cm Cordless Lawn Mower IQ18WM44, Including 2 x 5 Ah Battery and Dual Charger     Return to top of page

	Robot Lawnmowers - The Ultimate Cordless Lawnmower Lowest priced (reliable) robot mower - powered by 18v Li-ion battery.   Over the last 23 years of running this website I have tested many robot mowers and this is the latest! The Lawnmaster L10 is whisper quiet and so easy to program. If you want more info see my page on Robot Mowers  Buy Lawmaster Mower Direct from Manufacturer with a 10% Fredshed discount Use code Fred10 at checkout   For help choosing a cordless mower e-mail me  fred@fredshed.com Strictly UK enquiries only please
	Return to top of page   If you found my advice helpful and would like to support my work, please return to this page and use my links when purchasing your tools. Also any other products bought from Amazon at the same time will produce a small commission that helps cover my hosting costs.   Or if you prefer, you can make a small donation using the PayPal button below.  Thanks - Fred Return to Homepage         GARDEN TOOLS   Chainsaws Digging Tools Forks and Spades Grass Trimmers Hedge Trimmers Hedge Shears Hoes and Weeding Lawn Tools Loppers Mowers Pruning Tools New Products Rakes Secateurs Scaryfiers Shredders Watering Equipment   DIY AND OTHER PRODUCTS           Cordless Drills Pick Axes and Crowbars Screwdrivers   Solar Garden Lights Kitchen Tools   New DIY products Builders bits Sanders Torches Vacuum Cleaners-cordless Click on the shed to return to the homepage © Fred Walden 2025