Mountfield Electress 34 Li Cordless Lawnmower Review

Lightweight, Quiet & Surprisingly Capable

If you’re considering ditching the noise, mess and maintenance of petrol mowers, the Mountfield Electress 34 Li could be the compact cordless solution you’ve been waiting for. We tested this mower for small to mid-sized lawns and assessed genuine buyer feedback — both glowing and critical — to see if it lives up to the Mountfield name.

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First Impressions – Simple and Thoughtfully Designed

The Electress 34 Li arrives with two 20V lithium-ion batteries and a dual port charger. Assembly is straightforward, a common sentiment echoed by buyers on Mowers-Online, with one reviewer saying:

“It took about 10 minutes to set up. No tools required. Very intuitive and straightforward.”

We found the overall build to be lightweight yet sturdy, making it feel more robust than some of the flimsier budget cordless mowers in this price bracket.


Lightweight & User-Friendly

One of the most praised aspects of this mower is how easy it is to manoeuvre, especially for those used to heavier petrol machines. In a review titled From Petrol to Battery Power, a couple shared:

“We were amazed at just how light this one is, but also offering the satisfaction of sturdiness too.”

For users with back or joint issues, the Electress 34 Li’s low weight (just 12kg) and push-button start make it an appealing switch from recoil-start petrol machines.


Performance – Ideal for Small to Medium Lawns

Mountfield recommends this model for lawns up to 250m², and based on our experience, that’s about right. One customer commented:

“I have a small front and back lawn, and it covers both comfortably on a single charge.”

The cutting width of 34cm is efficient for suburban plots, and the adjustable 6-position height setting (25-75mm) allows for flexible mowing depending on lawn condition.

However, a few users felt the performance on longer or wetter grass was underwhelming:

“It struggles a little if the grass has been left too long – needs regular mowing for best results.”

This is not a heavy-duty mower — it’s designed for routine light to moderate cuts, not tackling overgrown paddocks.


Battery Life – Reliable, but Know Its Limits

Each battery charges in about 140 minutes and offers a combined run-time of around 30 minutes, which should suffice for most urban lawns. The batteries are compatible with other Mountfield Freedom 100 tools, which is a bonus if you’re building a battery-powered garden tool collection.

Some feedback highlighted the importance of managing battery expectations:

“I’d recommend having a spare set of batteries if you have a larger lawn or want to trim hedges right after.”


Grass Collection – Surprisingly Efficient

The 35-litre collection box clips on and off smoothly and is well-sized for the mower’s intended lawn size. Users appreciate how clean and tidy the mowing process is:

“The grass collection was better than I expected. Didn’t have to keep stopping to empty it.”

This contrasts nicely with the mess and clippings left behind by some hover or budget electric mowers.


Is It Worth Buying?

The Mountfield Electress 34 Li is an excellent cordless mower for small to mid-sized gardens — especially for those looking for something light, quiet, and easy to operate.

Pros:

  • Very lightweight and manoeuvrable
  • Clean, quiet and low-maintenance
  • Excellent for regular upkeep of small lawns
  • Batteries interchangeable with other Freedom 100 tools
  • Easy assembly and intuitive controls

Cons:

  • Not powerful enough for thick, overgrown grass
  • Limited battery runtime for larger plots
  • Handle height not adjustable – might not suit taller users

⭐ Garden-Review Score: 4.5 / 10

Rating: 4.5 out of 5.

A great choice for downsizing from petrol or moving up from manual mowing. If you have a small to average-sized garden and want a quiet, cordless upgrade, this mower ticks the right boxes — as long as you stay on top of regular mowing.

Where to buy? At the time of publishing Mountfield where out of stock. This Mower is available from dealers, including our recommended dealer, Mowers-Online below.

👉 Click here to check the latest price or buy from Mowers-Online

More information on the Mountfield Electress 34 Li:

Specifications

Battery TypeLithium-Ion
Battery Power2 x 20v / 4Ah – Batteries & Charger Included
Battery Run Time30 Minutes
Cutting Width34cm
Cutting Heights25-75mm (6 Positions)
Height AdjustmentSingle Lever
Grass Collector35 Litres – Canvas with Hard Top
MulchingNo
Side-DischargeNo
Cutting DeckPolypropylene
HandlesFoldable / Adjustable with Single Hand-Switch
WheelsFront 140mm / Rear 170mm – with Grooved Tread
Safety FeaturesOperator Presence Control
Lawn SizeUp to 250m2
Product Weight11.6kg
Warranty2 Years

Comparison Table: Cordless Lawnmowers for Small to Medium UK Gardens

We’ve looked at similar cordless lawn mowers in the same class to see how it compares.

FeatureMountfield Electress 34 LiBosch Rotak 36-36 Li (approx.)Ryobi ONE+ OLM1836H (approx.)Einhell GE-CM 36/36 Li (approx.)Greenworks G40LM35K2 (approx.)
Power Source2 x 20V Li-ion (40V total)36V Li-ion18V Li-ion (can use 2 for 36V)2 x 18V Li-ion (36V total)40V Li-ion
Cutting Width34 cm36 cm36 cm36 cm35 cm
Recommended Lawn SizeUp to 250 m²Up to 300 m²Up to 350 m²Up to 400 m²Up to 300 m²
Grass Box Capacity35 L40 L45 L40 L40 L
Cutting Height Range25-75 mm (6 positions)20-70 mm (6 positions)25-75 mm (5 positions)25-65 mm (6 positions)20-80 mm (5 positions)
Weight (approx.)12 kg12.4 kg15 kg12.3 kg15 kg
Runtime (approx.)30 mins (with 2x 2Ah bats)30-40 mins (with 2Ah bat)25-40 mins (with 4/5Ah bat)30-45 mins (with 2x 3Ah bats)30-45 mins (with 2Ah bat)
Charge Time (approx.)140 mins (for 2x 2Ah bats)140 mins (for 2Ah bat)90-150 mins (for 4/5Ah bat)60 mins (for 2x 3Ah bats)60 mins (for 2Ah bat)
Key FeaturesLightweight, Quiet, Dual Battery Ports, Freedom 100 System Compatible“LeafCollect” blade, Ergoflex handlesAdjustable handle, Intellicell battery tech, ONE+ SystemBrushless Motor, Highwheel, Power X-Change SystemLightweight, easy to store, 40V G-Max System
Typical Price (Kit w/ battery & charger)£200 – £250£280 – £350£250 – £300£220 – £280£200 – £260

Disclaimer:

  • Prices are approximate and can vary significantly based on retailer, promotions, and whether the model is purchased as a “kit” (with batteries and charger) or “bare tool” (without).
  • Battery runtime and charge times are estimates and depend on grass conditions, battery capacity, and charger type.
  • “Recommended Lawn Size” can vary by manufacturer and real-world performance.
  • Specifications are subject to change by manufacturers. Always check the latest details from the retailer before purchase.

Mountfield Electress 34 Li Cordless Lawnmower: Your FAQs Answered

Considering a new cordless lawnmower? The Mountfield Electress 34 Li is a popular choice for UK gardens. Here are some of the most common questions potential buyers ask about this lightweight battery-powered mower:


1. Q: Is the Mountfield Electress 34 Li suitable for my garden size? A: The Mountfield Electress 34 Li cordless lawnmower is ideally suited for small to medium-sized lawns, specifically recommended for areas up to 250m². This makes it perfect for typical urban or suburban gardens, allowing you to complete your mowing comfortably on a single charge. If you have a larger garden, you might consider having an additional set of batteries for extended runtime.

2. Q: What is the battery life and charging time for the Electress 34 Li? A: The Mountfield Electress 34 Li comes with two 20V lithium-ion batteries. When fully charged, these batteries provide a combined runtime of approximately 30 minutes, which is generally sufficient for its recommended lawn size. Each battery takes around 140 minutes to fully charge using the included dual-port charger.

3. Q: How easy is the Mountfield Electress 34 Li to assemble and use? A: This battery-powered lawnmower is renowned for its ease of assembly and user-friendliness. Many buyers report that it takes only about 10 minutes to set up, with no tools required, making it incredibly intuitive. Its lightweight design (just 12kg) and simple push-button start also make it exceptionally easy to manoeuvre and operate, even for those new to cordless garden tools.

4. Q: Is this cordless mower quiet and low-maintenance compared to petrol models? A: Absolutely. One of the significant advantages of the Mountfield Electress 34 Li is its remarkably quiet operation compared to noisy petrol mowers. As a cordless electric lawnmower, it also requires minimal maintenance – no fuel mixing, oil changes, or spark plug replacements, just battery charging and blade checks. This contributes to a cleaner, more enjoyable mowing experience.

5. Q: Can the Mountfield Electress 34 Li handle long or wet grass effectively? A: The Electress 34 Li performs best on dry grass that is mowed regularly. While it’s capable for routine cuts, some users note that it may struggle slightly with very long, thick, or wet grass. For optimal results and to maintain a healthy lawn, it’s recommended to use this mower for consistent upkeep rather than tackling heavily overgrown areas.

6. Q: Are the batteries compatible with other Mountfield garden tools? A: Yes, the 20V lithium-ion batteries supplied with the Mountfield Electress 34 Li are part of the Mountfield Freedom 100 series. This means they are interchangeable and compatible with other tools within the Mountfield Freedom 100 range, allowing you to power multiple cordless garden tools with the same battery system.

Have a questions? Do get in touch below and we will do our best to answer your questions.

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Jim Fellows

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