Hyundai HYM40LI420SP Review 40V Cordless Lawnmower

Hyundai HYM40LI420SP

9.7

Performance/Cut Quality

9.6/10

Features

9.8/10

Durability

9.6/10

Value

9.6/10

Warranty/Support

9.8/10

Pros

  • Self-propelled cordless mower
  • Mulching plug supplied
  • Lightweight steel deck
  • Vertical Storage
  • 3 year warranty

Cons

  • No roller for creating a striped lawn

Summary

Hyundai HYM40LI420SP Cordless Mower Review

The Hyundai HYM40LI420SP is a battery powered self-propelled cordless lawn mower that is supplied with a 2.5Ah 40v Samsung lithium-ion battery and provides up to 30 minutes of run-time. It has a 42cm deck size, a 45 litre grass collection box, 6 cutting heights from 25mm to 75mm, and is lightweight at just 19.9Kg. The Hyundai HYM40LI420SP is supplied with a mulching plug, two safety keys and is covered by a 3 year Hyundai warranty.

Powered by a mighty Samsung lithium-ion battery, self-propelled and with the innovation of the Hyundai design, this is a lawn mower not to be messed with – you’re getting the best of both worlds in terms of power, functionality and performance.

Not only does the Hyundai HYM40LI420SP look like a petrol lawn mower, but it also behaves like one as well. All the benefits of a petrol mower such as a steel deck and being self-propelled, without the heavy weight, fuel, fumes, servicing and starting issue of a petrol mower.

With a very handsome 42cm cutting width this makes an ideal companion for those with medium-sized gardens and will allow you to tackle much more of your lawn in one pass. However, if you’ve something slightly larger, you may want to look at its bigger brother, the Hyundai HYM80LI460SP which has a 45cm cutting width and an 80V battery. But that’s not to say that this smaller model is anything but superior when compared to other mowers in this category.

You’re getting a very durable piece of equipment made from steel, which is more than capable of withstanding the harsh conditions of outdoor use. So if you’re looking for something that’s going to stand the test of time, you’d be hard-pushed to find anything better.

Furthermore, there’s a very handsomely-sized grass bag which can take up to 45 litres of grass cuttings so you know that with this mower, you won’t be running off to the bin or compost heap too frequently.

It’s got some excellent safety features which add to the overall positive experience of using this machine and with its cordless design, you’re saving yourself from those pesky cables as well as doing your part for the environment.

The mower is self-propelled, so much of the hard work is taken out of getting the grass trimmed which makes this a great option for people who find the job physically challenging or just want to make light work of the job.

For the price you’re paying and the features you will be getting, the Hyundai HYM40LI420SP is a brilliant choice for any avid gardener, so simply someone who wishes to keep a neat and tidy lawn.

Hyundai HYM40LI420SP Summary

Main Features

  • Self-propelled
  • 42cm cutting width
  • Lithium-ion Samsung battery – 40V
  • 45-litre grass collection bag
  • Safety key
  • Steel chassis for durability
  • 6 cutting heights
  • 3-year warranty

Battery Charger

I have already touched on the use of the lithium-ion Samsung battery that makes this mower so powerful. You know you’re going to be getting quality but when you learn that this battery has been designed to withstand more than 1000 charges, it suddenly shoots up to another league.

You’re obviously going to want something reliable and that is exactly what you’re getting with this battery, but you’re also getting convenience. The 40V battery requires just 80 minutes to reach its fully charged capacity so you won’t be waiting around all day to get the grass cut.

The 2.5Ah battery, when fully charged will give you up to 30 minutes of cutting time, which is more than ample for tackling a small to medium lawn – just bear in mind that this applies to normal cutting conditions.

80 minutes for a full charge compares favourably with other brands, however if you need to charge even faster, then there is a Hyundai fast charge available that will get the job done in just 30 minutes. This fast charger will need to be purchased separately as the standard charger is supplied with the mower.

Remember, that the batteries and charger can also be used with other compatible 40 volt Hyundai tools.

Hyundai HYM40LI420SP Battery

Deck And Blade

A super-strong steel deck gives you the confidence that this mower will not falter in terms of durability. It’s a commonly understood fact that steel has the ability to withstand a battering from the elements and still remain in excellent condition, so no matter what trials you decide to put the mower through, the strong body has got you covered.

The mower features powerful rotating blades that make light work of cutting the grass and thanks to the self-propelled nature of the machine, it will easily glide along getting every single blade of grass on the way.

Cutting Diameter

The Hyundai HYM40LI420SP has a reasonably generous cutting diameter of 42cm which is perfectly ample for small or medium-sized lawns. If you compare this to the larger model that features a 45cm cutting width, it’s easy to see that this is a better option if you don’t have a huge lawn.

Handles

One of the most notable things about the handle on this mower is its ability to fold down so that when the machine is not in use, it can be easily stored away in the shed or other outbuilding.

It also features a soft foam grip which is essential for comfortable operation and reducing vibrations, that further adds to the overall excellent experience you will have when using this mower.

Wheels

Hyundai HYM40LI420SP Height Adjustment

Four plastic wheels give you a good strong base for the mower whilst also enabling you to move about the lawn with ease. The back wheels are marginally larger which allows for better navigation over rougher terrain, or if the lawn has any small bumps or grooves. In turn, this will serve as a way of preventing any damage to the lawn mower whilst it is in action.

Front wheels: 152mm

Rear wheels: 178mm

Height Adjustment

The Hyundai HYM40LI420SP has six cutting heights which make it a very diverse machine. You’ll likely be aware that your lawn should be cut at different lengths throughout the year so having a good choice of cutting heights is essential to ensure your lawn remains at its healthiest all year round.

The cutting heights range between 25mm and 75mm giving you a very wide choice. But what’s even more impressive is how easy it is to switch between them. With the flick of a single lever, the cutting height can be adjusted and you can be on your way.

Roller

This model does not feature a roller for creating a striped lawn.


Check Price Now

5% Off Your Order At HYUNDAI POWER EQUIPMENT
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Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
  • No Cables, No Petrol, No Pollution - simply charge the batteries and you’re ready to go.
  • Powered by a Samsung 40v lithium-ion 2.5Ah battery, designed for 1000+ charges
  • 42cm cutting width it’s ideal for cutting small to medium sized lawns.
  • Durable steel chassis weighing just 19.9kg with adjustable 6 cutting heights from 25mm to 75mm
  • The large easy to remove 45L grass catcher bag minimises the time you spend emptying the cuttings and features a grass level indicator
  • Safety feature - safety key prevents accidental start-ups, the removable key is located next to the battery and will disable the mower when removed.

Last update on 2020-10-30 / Affiliate links / Images from Amazon Product Advertising API

Mulching

Mulching is the process of the grass clippings being returned to the lawn in order to assist in its growth and health. The good news is that there is a mulching plug supplied as standard with this mulching lawn mower.

As the rotating blades spin around and cut the grass, the clippings are automatically distributed back across the lawn – it is a completely effortless process. Just pop in the mulching plug and you’re ready to go.

If you would like to learn more about the benefits of mulching, click on my article – The Benefits of Mulching Lawn Mowers.

Grass Box

The Hyundai HYM40LI420SP comes with a very decent-sized grass catcher bag that is able to take up to 45 litres. It is a fabric bag that is very easy to remove and empty – not that you’ll need to be stopping to empty all that often thanks to the generous size.

Practicalities

Hyundai HYM40LI420SP Practicalities

I have to say that one of the first things that caught my eye when testing out this mower was the fact that it is self-propelled. Not only does this cordless battery mower look like a petrol mower, it behaves like one. Remember it has a steel deck, and yes, it’s self-propelled!

Yes, I know there are other self-propelled cordless mowers from EGO and Mountfield available, but not at this price range. This Hyundai self-propelled mower is such great value for money when you consider what you are getting included. Included out of the box is a mulching plug, spare safety key, steel deck and a 3 year warranty and much more.

What’s more, the folding handles that I touched upon earlier makes for extremely easy storage with the added benefit of being able to store the mower vertically. The handles fold very easily both at the mid point and the lower deck point with no tools required. Hyundai are really listening to the UK market and including features that not only make the mowing experience easier, but also acknowledging that not everyone has masses of storage space available – nice one Hyundai!

The mower operates at a very low sound level so unlike some other mowers, there will be no risk to your hearing or of disturbing the neighbours, even if you want to mow early in the morning.

Other notable practicalities are the fact that it is so easy to get started. It’s not uncommon to find a lawn mower that requires a lot of putting together before the first use, but the Hyundai HYM40LI420SP can come straight out of the box and you’ll be getting to work in no time.

Hyundai Cordless Comparison Table

HYM40Li330P
Hyundai HYM40LI330P 40V Lithium-Ion Cordless Battery Powered Roller...
HYM40Li380P
Hyundai HYM40LI380P 40V Lithium-Ion Cordless Battery Powered Roller...
HYM40Li420P
Hyundai HYM40LI420P 40V Lithium-Ion Cordless Battery Powered Lawn...
HYM40Li420SP
Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
HYM80Li460P
Hyundai HYM80LI460P 80V Lithium-Ion Cordless Battery Powered Lawn...
HYM80Li460SP
Hyundai HYM80LI460SP 80V Lithium-Ion Cordless Battery Powered Self...
Mower
Hyundai HYM40LI330P 40V Lithium-Ion Cordless Battery Powered Roller...
Hyundai HYM40LI380P 40V Lithium-Ion Cordless Battery Powered Roller...
Hyundai HYM40LI420P 40V Lithium-Ion Cordless Battery Powered Lawn...
Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
Hyundai HYM80LI460P 80V Lithium-Ion Cordless Battery Powered Lawn...
Hyundai HYM80LI460SP 80V Lithium-Ion Cordless Battery Powered Self...
Battery
40V, 2.5Ah - Samsung
40V, 2.5Ah - Samsung
40V, 2.5Ah - Samsung
40V, 2.5Ah - Samsung
2X 40V, 2.5Ah - Samsung
2X 40V, 2.5Ah - Samsung
Battery Charging Time
80min Approx
80min Approx
80min Approx
80min Approx
80min per battery
80min per battery
Drive System
Push
Push
Push
Self Propelled
Push
Self Propelled
Cutting Heights
20-40-70mm (3 Positions)
20-70mm (5 Positions)
25-75mm (6 Positions)
25-75mm (6 Positions)
25-75mm (6 Positions)
25-75mm (6 Positions)
Cutting Width
33cm
38cm
42cm
42cm
45.2cm
45.2cm
Deck Material
Plastic
Plastic
Steel
Steel
Steel
Steel
Weight
13.9kg
13.9kg
19.9kg
19.9kg
27.8kg
29.8kg
Grass Bag Volume
30L
40L
45L
45L
65L
65L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
-
-
-
-
Price
£199.99
£239.99
£289.99
£319.99
£429.99
£449.99
Prime Benefits
-
-
-
-
-
-
HYM40Li330P
Hyundai HYM40LI330P 40V Lithium-Ion Cordless Battery Powered Roller...
Mower
Hyundai HYM40LI330P 40V Lithium-Ion Cordless Battery Powered Roller...
Battery
40V, 2.5Ah - Samsung
Battery Charging Time
80min Approx
Drive System
Push
Cutting Heights
20-40-70mm (3 Positions)
Cutting Width
33cm
Deck Material
Plastic
Weight
13.9kg
Grass Bag Volume
30L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
Price
£199.99
Prime Benefits
-
More Information
Full Review
HYM40Li380P
Hyundai HYM40LI380P 40V Lithium-Ion Cordless Battery Powered Roller...
Mower
Hyundai HYM40LI380P 40V Lithium-Ion Cordless Battery Powered Roller...
Battery
40V, 2.5Ah - Samsung
Battery Charging Time
80min Approx
Drive System
Push
Cutting Heights
20-70mm (5 Positions)
Cutting Width
38cm
Deck Material
Plastic
Weight
13.9kg
Grass Bag Volume
40L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
-
Price
£239.99
Prime Benefits
-
More Information
Full Review
HYM40Li420P
Hyundai HYM40LI420P 40V Lithium-Ion Cordless Battery Powered Lawn...
Mower
Hyundai HYM40LI420P 40V Lithium-Ion Cordless Battery Powered Lawn...
Battery
40V, 2.5Ah - Samsung
Battery Charging Time
80min Approx
Drive System
Push
Cutting Heights
25-75mm (6 Positions)
Cutting Width
42cm
Deck Material
Steel
Weight
19.9kg
Grass Bag Volume
45L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
Price
£289.99
Prime Benefits
-
More Information
Full Review
HYM40Li420SP
Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
Mower
Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
Battery
40V, 2.5Ah - Samsung
Battery Charging Time
80min Approx
Drive System
Self Propelled
Cutting Heights
25-75mm (6 Positions)
Cutting Width
42cm
Deck Material
Steel
Weight
19.9kg
Grass Bag Volume
45L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
-
Price
£319.99
Prime Benefits
-
More Information
Full Review
HYM80Li460P
Hyundai HYM80LI460P 80V Lithium-Ion Cordless Battery Powered Lawn...
Mower
Hyundai HYM80LI460P 80V Lithium-Ion Cordless Battery Powered Lawn...
Battery
2X 40V, 2.5Ah - Samsung
Battery Charging Time
80min per battery
Drive System
Push
Cutting Heights
25-75mm (6 Positions)
Cutting Width
45.2cm
Deck Material
Steel
Weight
27.8kg
Grass Bag Volume
65L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
-
Price
£429.99
Prime Benefits
-
More Information
Full Review
HYM80Li460SP
Hyundai HYM80LI460SP 80V Lithium-Ion Cordless Battery Powered Self...
Mower
Hyundai HYM80LI460SP 80V Lithium-Ion Cordless Battery Powered Self...
Battery
2X 40V, 2.5Ah - Samsung
Battery Charging Time
80min per battery
Drive System
Self Propelled
Cutting Heights
25-75mm (6 Positions)
Cutting Width
45.2cm
Deck Material
Steel
Weight
29.8kg
Grass Bag Volume
65L
Rear Roller
Mulching Plug Included
Side Discharge
Vertical Storage
Customer Rating
-
Price
£449.99
Prime Benefits
-
More Information
Full Review

Last update on 2020-10-30 / Affiliate links / Images from Amazon Product Advertising API

Safety Features

It’s essential to have a safe operation on any powered garden equipment to prevent injury or accidental start-up.

The Hyundai HYM40LI420SP comes with a safety key (and a spare), which must be inserted in order for the machine to be able to power up. When this is in, you can use the operator presence control (OPC) lever to get started as long as the safety button is also pressed with the other hand. If the safety key is removed, the mower is disabled.

What’s Included In The Box

  • 1 x Hyundai HYM40LI420SP
  • Mulching plug
  • 1 x 2.5Ah 40V lithium-ion battery
  • Safety key x 2
  • Battery charger
  • Instruction Manual

Pros and Cons

Hyundai HYM40LI420SP Pro and Cons

Pros

  • Self-propelled mower
  • Mulching plug supplied
  • Lightweight steel deck
  • Easy to store with vertical storage
  • 3 year warranty
  • Quick battery charging (30 min fast charger available separately)
  • Powerful & reliable Samsung battery
  • 42cm cutting width
  • Large grass bag (45 Litres)
  • Safety key x 2

Cons

  • No rear roller for creating a striped lawn

Should You Buy This Model

Hyundai HYM40LI420SP Conclusion

If you’re someone who has a small or medium lawn and needs a cordless mower that will breeze through your gardening tasks, then this is a very good option. If you are in need of something a little larger, the next model up, the Hyundai HYM80LI460SP might be a better choice – it has many of the same features but a larger cutting width.

This is also a good choice for people who need a mower that is versatile thanks to the variety of easily adjustable cutting heights.

What’s more, with a trusted name like Hyundai and the addition of the renowned Samsung battery, you know that quality is not going to be compromised.

The Hyundai HYM40LI420SP is also an excellent choice for those who may find pushing a manual drive lawn mower somewhat of a challenge. This is thanks to the self-propelled nature of the machine.

Conclusion

The Hyundai HYM40LI420SP is a great versatile cordless mower that has an impressive range of features making it ideal for a variety of users.

The quick-charging battery and the easy, out-of-the-box start-up makes getting outside and getting the job done more simple than ever.

With the mulching option, a good cutting width and various cutting heights, you’ll be able to create a lawn to be proud of and what’s more, the quiet operation and lack of any petrol make this a brilliantly eco-friendly option.

Where should I purchase this Hyundai HYM40LI420SP ?


Check Price Now

5% Off Your Order At HYUNDAI POWER EQUIPMENT
Use Discount Code: MOWJO at Checkout.


Hyundai HYM40LI420SP 40V Lithium-Ion Cordless Battery Powered Self...
  • No Cables, No Petrol, No Pollution - simply charge the batteries and you’re ready to go.
  • Powered by a Samsung 40v lithium-ion 2.5Ah battery, designed for 1000+ charges
  • 42cm cutting width it’s ideal for cutting small to medium sized lawns.
  • Durable steel chassis weighing just 19.9kg with adjustable 6 cutting heights from 25mm to 75mm
  • The large easy to remove 45L grass catcher bag minimises the time you spend emptying the cuttings and features a grass level indicator
  • Safety feature - safety key prevents accidental start-ups, the removable key is located next to the battery and will disable the mower when removed.

Last update on 2020-10-30 / Affiliate links / Images from Amazon Product Advertising API

 

Hyundai HYM40LI420SP FAQ

Does the Hyundai HYM40LI420SP have a rear roller?

No rear roller on this model.

Is there a fast charger available for this Hyundai HYM40LI420SP?

Yes, this is available as an optional extra and can be ordered on the link below - part number HYCH405. https://tidd.ly/32Ja5ZC

Can you adjust the speed of the self propulsion?

No, this is a single speed drive mower.

Is the deck plastic or metal on the Hyundai HYM40LI420SP?

The deck is made of powder coated steel.

How long is the warranty on this mower?

3 years including the battery.

How many safety keys are supplied with the Hyundai HYM40LI420SP?

2 keys.

Does the height lever adjust all 4 wheels simultaneously?

Yes, a single lever adjusts all 4 wheels.

Is the Hyundai HYM40LI420SP supplied with the mulching plug or is this an optional extra?

The mulching plug is supplied with the mower.


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