Cordless Battery Powered Mowers
The latest and best
Tested and Reviewed by Fred-in-the-shed
Updated 12th May 2019
This page is for my UK readers
(Click here for Mowers available in the USA)
Me 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.
An ancient Webb battery mower like the one I used 35 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 electrocution & tripping.
On This Page
Flymo Mighti-Mo Cordless Mower
Worx 40v Cordless Mower
Greenworks 40v Cordless Mowers
Bosch Cordless Mowers
Ego 56v Cordless Mowers
Self Propelled Cordless Mowers
Makita Cordless Mower
Gtech Falcon Cordless Mower
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Best Cordless Electric Rotary Mowers
Bosch Rotak 430 LI (2 x 2 amp hour batteries, cutting width 43 cm)
Entry Level Budget Price Cordless Mowers
The Flymo 40v Mighti-Mo
Under Testing, On My Lawn - By The Mighty Sarah
The Flymo Mighti-Mo is the smallest and cheapest cordless mower available in the UK. It has a 30cm cut and a run time of 25 minutes.
The cut width and battery makes it suitable for lawns up to the size of a tennis court, if you cut it regularly.
The battery is 40v, 2 amp hour and is slightly fiddly to put in but gives enough power to cut most small lawns.
A few users have reported it cutting out on long grass or if the battery is not pushed in fully.
I have been assured by Flymo this was problem with a small batch and has been resolved.
However, make sure you push the battery in firmly and close the plastic lid on it.
If you let your grass get long before you cut then this cheap little Flymo (and most cordless mowers) are not for you.
After using the Mighti-Mo for a season I am really liking it and for 2018 there it is available with a new grass trimmer that uses the same battery.
See link below for mower or mower with grass trimmer
In 2010 Positec, the parent company of Worx, launched three 24v cordless mowers and I tested the larger WG 785E version with the 40cm cut and silent power option.
There were two smaller versions, the WG773 and the WG774. All three used old fashioned lead acid batteries, actualy two 12v motorcycle batteries.
In 2015 Worx upgraded to 40v Li-ion batteries in the new WG776E model.
For 2018 Worx has cleverly switched to using two 20v Li-ion batteries from its 20v Max range of tools and wiring them in series to give 40v to the motor.
This means you can use these batteries to power any of their 20v powertools of which there are nearly 40 in the range.
This new WG779E.2 model has a 34cm cut and an eco mode to reduce the power for light cuts.
The mower is very well made and easy to put together ( I don't say that often) and has a roller for stripes.
It comes with two 20v 2 amp hour batteries, with power level indicators and a super twin port charger. If you want to cut for longer you could buy larger capacity 4 amp hour batteries. The Worx WG779E.2 cuts and collects very well and is light and easy to move thanks to its large wheels.
Greenworks 40v Cordless Mowers
Chinese manufacturer Greenworks make superb batteries for European brands and also 5 ranges of their own cordless tools from 24-80v.
The two 40v mowers I tried are keenly priced and both cut very well and are reliable and easy to use.
The 35cm cut version shown above is very good value with its 2 amp hour battery.
Several models available in different sizes and available with or without batteries.
Premium models are now available with more efficient brushless motors.
Best Cordless Mower ? The Bosch Rotak Li Range
BOSCH ROTAK - LATEST VERSION - WITH GRASS COMBS & ERGO HANDLES
CUT RIGHT TO THE EDGE OF YOUR LAWN
MADE IN THE UK
It's like driving an F1 car - but less dangerous
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 am still using it today - with the same battery!
Before the Rotak I tested many cordless mowers, but none of them were machines I could have used as my main mower. My 12v Black & Decker cordless mower gave a good cut but lacked the power to cope with longer grass or larger lawns.
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.
The other great thing about these mowers is that they are made in the UK, in Stowmarket, Suffolk. Some of the smaller mains powered Bosch mowers are made in China.
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. I don't know any other manufacturer with such a good warranty.
In 2014 I visited the Stowmarket factory and was very impressed with the attention to detail and quality control measures implemented. Not only that but the Suffolk workers export these mowers to Germany and other European countries.
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 is available in 3 sizes, based on a 32cm, 37cm cut and 43cm cut. All have sturdy wheels with a rear roller for that stripy effect. Blade height (cut height) is easily adjusted by one large lever and can be as low as 30mm.
The 36v battery is the same as the ones used in Bosch professional power tools like builders' drills so it is well tried and tested. My original one has lasted 10 years so far and is still going strong. The 32li and 37li models come with one battery and start at about £300, the larger 43cm model comes with 1 or 2 batteries for cutting lawns up to 600sqm. Just to confuse people different models come with 2.0, 2.6 or 4 amp hour batteries!
Battery charging time is 1 hour except for the 32Li which has a lower spec charger and takes 90 minutes.
However, as these are Li-Ion batteries you don't have to fully charge them so you can give them a shorter charge without harming the battery
Battery Update News!
The original battery was 2.6 amp hour. Now the Rotak 37Li has a larger 4 amp hour battery and usually costs around £390
LINKS FOR BEST DEALS ON SMALLER MODELS
Currently (12th May 2019) the best deal is the 37Li on the link below as it as the big battery
If you want a 32Li the link below is good but only £10 cheaper than the one above which is a much better mower!
LINKS FOR BEST DEALS ON LARGER MODELS
2 different Bosch 36v batteries are available - use links below for genuine Bosch 36v batteries
Other Models and Confusing Marketing
The Rotak 42Li, 370Li and 430Li are special build models exclusive to Amazon and other large retailers.
They may or may not be cheaper but come with smaller 2.0 Ah batteries. Apart from that I think they are the same as the 37Li and 43Li.
Having 2 small 2 amp hour batteries instead of a larger 4 amp hour one could be an advantage if you use other 36v Bosch products like the hedge trimmer or blower.
If you are confused e mail firstname.lastname@example.org for advice on which model is best for you
UK ONLY AND PLEASE GIVE LAWN SIZE, BUDGET OR A SMALL IMAGE OF YOUR LAWN
Blade Options and a Mulching Accessory For Rotak Li Mowers
(37li and 43li models only)
The mulching panel saves time and helps feed your lawn. It is best used for frequent cuts when grass is not too long.
Other Bosch 36v tools that use the same 36v battery system
chainsaw no longer available
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.
I don't know any other manufacturer with such a good warranty.
The Most Powerful User-Propelled Cordless Mower
56V Ego Cordless Mower
I am currently testing the EGO Power+ 56V cordless mower.
Since testing this mower higher capacity models have appeared such as the Mountfield 80v model - so watch this space!
This impressive mower appeared in 2015 and gives a 49cm (20inch) wide cut. It is powerful enough to replace a petrol mower for many domestic lawns.
The patented 56v, 4 amp hour, Li-ion battery uses a new C shaped design that keeps it cool and thus performing better.
On an average lawn the battery should give 45 minutes of cutting and cover up to 800sqm.
The quality of the body is exceptional and I love the easy height adjustment, easy battery removal and the LED headlights.
As this mower is mainly aimed at the US market the lowest setting is not as short as some Brits would expect.
The EGO power+ lawnmower has the best folding handle mechanism I have seen and this will help you store this beast of a mower in a relatively small space.
I do believe that this product heralds the beginning of the end for the petrol mower in the domestic setting.
The superb battery can power other garden tools and there is also a lighter weight, 2 amp/hour battery available.
SELF-PROPELLED CORDLESS MOWERS
Stihl RMA 448 TC and the Cobra MX46 S 40V
Stihl RMA 448 TC is the largest of 5 Stihl cordless mowers
Self-propelled means self-driving - it moves itself along, unlike hand
propelled mowers like the Bosch Rotak range.
I tried the
first self propelled battery mower in 2011, the CEL DM20. It had 2 separate motors,
and a huge 17 amp hour lead acid battery, the size of a suitcase. New for 2018 - Stihl RMA 448 TC The latest and best is now the Austrian made Stihl RMA 448TC
that I am now 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 2 will cut up to 450m sq depending on how level your lawn is and
how long your grass is. 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 so you get trained in using it and 100% service. If you want to buy this sort of mower online, an alternative,
also with Li-ion batteries, is
Cobra MX46S40V for around £490. This mower uses one 40v battery
but has spaces for 2 and automatically switches if one runs low. Click here for info on the Cobra MX46S40V
SELF-PROPELLED OR PUSH ALONG CORDLESS MOWERS ? Which to Choose? Self propelled is great for wide open lawns but
can be awkward to manoeuvre in tight spaces due to the drive controls and
extra weight. If you lack some strength or agility then you may actually be
better with a lighter weight Bosch Rotak 43Li that you push. The Rotak mowers are light enough for me to push from a
wheelchair but are strong enough for my one 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. At Fredshed I focus on cordless and not petrol
so I can't claim to be an expert on the latest petrol mowers. For petrol, the brands I like are Honda, Hayter,
Viking and Cobra. Cobra petrol mowers are designed
in the UK for the UK. They are a fairly priced with good spares and back up from a
company I have known for years. The Self propelled Cobra RM40 SPC model below is being used by a family member and has the
easy start mechanism. It is a lot of mower for around £300.
I tried the first self propelled battery mower in 2011, the CEL DM20.
It had 2 separate motors, and a huge 17 amp hour lead acid battery, the size of a suitcase.
New for 2018 - Stihl RMA 448 TC
The latest and best is now the Austrian made Stihl RMA 448TC that I am now 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 2 will cut up to 450m sq depending on how level your lawn is and how long your grass is.
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 so you get trained in using it and 100% service.
If you want to buy this sort of mower online, an alternative, also with Li-ion batteries, is the Cobra MX46S40V for around £490.
This mower uses one 40v battery but has spaces for 2 and automatically switches if one runs low.
Click here for info on the Cobra MX46S40V
SELF-PROPELLED OR PUSH ALONG CORDLESS MOWERS ? Which to Choose?
Self propelled is great for wide open lawns but can be awkward to manoeuvre in tight spaces due to the drive controls and extra weight.
If you lack some strength or agility then you may actually be better with a lighter weight Bosch Rotak 43Li that you push.
The Rotak mowers are light enough for me to push from a wheelchair but are strong enough for my one 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.
At Fredshed I focus on cordless and not petrol so I can't claim to be an expert on the latest petrol mowers. For petrol, the brands I like are Honda, Hayter, Viking and Cobra.
Cobra petrol mowers are designed in the UK for the UK. They are a fairly priced with good spares and back up from a company I have known for years.
The Self propelled Cobra RM40 SPC model below is being used by a family member and has the easy start mechanism. It is a lot of mower for around £300.
More Cordless Mower Options - Makita and Gtech mowers reviewed.
Makita 36v Cordless Mower
Makita cordless mower under testing on the Fredshed lawn.
The Makita cordless mowers use two 18v Li-ion batteries in series to give 36v and masses of power!
Makita offer two 36v cordless mowers and I am testing the larger DLM431z version with the 43cm cut.
The smaller DLM380z version has a 37cm cut and both are sold naked, without batteries or charger as there are several option on battery capacity and chargers.
Rather than use one expensive 36v battery Makita cleverly switched to using two 18v Li-ion batteries from its 18v range of tools and wiring them in series to give 36v to the motor.
This means you can use these batteries in any of their 18v or 36v dual battery powertools of which there are around 150 to choose from.
The mower is very light, but well made and the handle folds completely for easy storage. It does not have a roller for stripes.
I am testing this model using two 18v 5 amp hour batteries and a super twin port charger. It cuts and collects very well and is light and easy to move thanks to its large wheels which unlike many cheaper mowers are mounted on proper bearings. The height adjustment is incremental and goes from a very low 25mm- 75mm.
These are superb mowers and apart from the lack of a roller and stripes they are a good alternative to the Bosch Rotak cordless mowers.
GTECH FALCON TESTED AND REVIEWED BY FRED
The Gtech Falcon is made in China but designed by Nick Grey, the British owner of Gtech.
It costs around £349 and gives a 43cm cut from a 36v 4 amp hour battery.
This is slightly cheaper than a Bosch Rotak 43Li to which it has a similar specification.
The Gtech Falcon looks good and has some clever features like the handle that folds-over for better storage.
It also has easy sliding handle height adjustment.
The 36v battery looks like a nuclear fuel flask with spooky green lights to show how charged it is.
The downside to this mower..
The battery can only be used in this Gtech mower and their new leaf blower, though more tools will probably follow.
The Gtech falcon does not have a rear roller to make stripes on your lawn.
TOP TIPS FOR CORDLESS MOWERS TO IMPROVE BATTERY DURATION
Cut regularly so that the battery is not strained by long grass.
Remember to charge the battery over winter and don't leave it in a damp shed.
Keep the blade sharp - a blunt blade will make the mower work harder.
Keep the underside clean - same reason.
If you are UK based and want help choosing a mower, e-mail email@example.com and give lawn dimensions and your budget guide.
Go Green with a Push Mower!
If you cut your lawn regularly a push mower is an easy tool to use and has many advantages:
1. It will help keep you fit
2. It uses no fuel but burns your fat
3. It makes less noise
4. It is mechanically simple and is unlikely to go wrong
5. It has low running costs
Fiskars Momentum Push Mower
This amazing mower was invented by my tool design guru Marcus in Finland is the most advanced push mower yet.
It has a wider cut than previous push or reel mowers, and unlike all of those that have gone before it can cut right to the edge.
The best feature of the Fiskars momentum is how easy it is to push and also that it can cut long grass
Another good feature is that the handles are height adjustable and can be quickly removed for easy storage.
I tested the Fiskars Momentum for 3 years and was very impressed.
The grass box does not come with the mower but is available as an option.
The mower is quite expensive but is superb quality and will save you a fortune at the gym!
How to Sharpen a Blade on a Cylinder Mower
The easiest and cheapest way of sharpening as small cylinder mower is to use a kit which is basically a strip of abrasive that fits above the cutting plate and below the cylinder blades. You then lower the cylinder slightly until there is some contact and then run the mower. I have used this kit many times with good results.
Robot Lawnmowers - The Ultimate Cordless Lawnmower
Lowest priced (reliable) robot mower - powered by 18v Li-ion battery.
Flymo is owned by Swedish company Electrolux who pioneered robot mowing with their Husqvarna robot mower.
Their entry level Flymo robot is ideal for small, well kept simple shaped lawns. If you have a larger lawn another good alternative is the Worx Landroid which is like the Bosch Indego in that it is Internet connected.
For help choosing a cordless mower e-mail me
Strictly UK enquiries only please
If you find this page helpful and would like to support my work please use my links when you purchase & mention Fredshed in any reviews.
Thanks - Fred
TIPS TO MAKE YOUR MOWER LAST LONGER!
Keeping the underside of the mower clean and the blade sharp will reduce the stress on the motor and increase its life.
You will also be able to cut the lawn faster and it will look better with a clean cut to the ends of the blades of grass.
Best Value Lawn Treatment Product
A thick mossy lawn is hard to cut and can strain the motor of your mower.
Many lawn treatment products are just cleverly packaged iron sulphate. Fred uses iron sulphate to kill his moss.
Fred is smart - be like Fred and use iron sulphate to improve your mowing!
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.
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Or if you prefer, you can make a small donation using the PayPal button below.
Thanks - Fred
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