The Mountfield MTR 20 Li is a lightweight, energy-efficient cordless grass trimmer perfect for smaller gardens. This complete kit includes a 20V 2Ah battery and charger, offering up to 20 minutes of runtime for effortless tidying of lawn edges and borders.
The Freedom100 range is an exciting new range for 2021. Featuring 3 lawn mowers with cutting widths ranging from 30-38 cm and 4 garden power tools: blower, grass trimmer, hedge trimmer and multi-tool. Powered by class leading 20V Lithium-Ion batteries, each product has a battery and charger included.
This range is a great starter kit for anyone entering into the cordless market for the first time and offers great value for money.
Mountfield’s MTR 20 Li grass trimmer delivers the convenience of cordless technology with the performance needed to keep smaller gardens looking immaculate. It is incredibly easy to use and energy-efficient, providing the power of petrol without the fumes or fuss. This makes it an ideal choice for homeowners seeking a straightforward solution for trimming lawn edges and tidying areas inaccessible to a lawnmower.
As part of the Mountfield 20V battery range, the MTR 20 Li is powered by a 2Ah ePower 20V Lithium-Ion battery, providing a reliable run time of up to 20 minutes on a single charge. The powerful 150W brushed motor reaches a maximum speed of 8000 rpm, and intelligent electronics ensure it maintains full speed throughout the battery’s charge. The trimmer features a 25cm cutting width and an automatic single-line feed head for continuous work. For precise trimming around plants, borders, and other garden objects, a handy space bracket can be folded down to prevent accidental damage.
Comfort is central to the MTR 20 Li’s design. It features a telescopic shaft with six adjustable positions over a 170mm range, allowing users to set the perfect height for their stature. Combined with a soft grip handle and an adjustable loop handle, it ensures comfortable operation even during more challenging tasks. The cutting head is also adjustable and can be angled to comfortably trim in areas with obstacles. The compact battery placement creates optimal balance, and the streamlined design allows for easy manoeuvrability around the garden.
As an authorised UK dealer for Mountfield, Sims Garden Machinery provides more than just a box. With over 100 years of experience, our trained sales staff at our Stratford-upon-Avon showroom can ensure you’re getting the right tool for the job. For local customers, this trimmer comes with our free PDI (Pre-Delivery Inspection), local delivery, and a complete handover demonstration to ensure you’re comfortable with its operation from day one. Our on-site workshop and trained mechanics are always here to provide expert aftersales support and servicing, reinforcing our commitment to quality service, not just sales.
| Specification | Value |
|---|---|
| SKU | 271102203/MUK |
| EAN/UPC | 8008984844612 |
| Series | 100 Series |
| Power Source | Battery |
| ePower | Yes |
| Power | 0.15 kW |
| Voltage | 20 Volt |
| Battery Capacity | 2 Ah |
| Lithium Battery Nominal Energy | 36 Wh |
| Battery Kit | Included |
| Motor Type | With brushes |
| Maximum Motor Speed | 8000 rpm |
| Working Time (+/- 20%) | 20 min |
| Cutting Width | 25 cm |
| Cutting Angle | Adjustable |
| Nylon Head Type | Automatic single line |
| Nylon Line Diameter | 1.6 mm |
| Nylon Line Length | 4 m |
| Handle Type | Loop, Adjustable |
| Shaft Type | Telescopic |
| Shaft Tube Diameter | 26 mm |
| Soft Grip Handle | Yes |
| Battery Charger | Single standard |
| Charger Output Current | 2 A |
| Charger Plug Type | BS (Type G) |
| Guaranteed Sound Power Level (LwA) | 92 dB(A) |
| Product Weight (without battery) | 2.16 kg |
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
When operating this trimmer, it’s essential to wear clothing that protects your legs and face from any debris that might be thrown. It is always recommended to wear sturdy, long trousers and a protective visor or safety glasses.
To ensure the machine functions correctly and to maximise its lifespan, regular cleaning is recommended. Based on your frequency of use, you should clean the battery housing, its contacts, and the cutting head assembly (trimmer head and guard) where dirt and grass clippings can build up. Always consult the user manual for specific maintenance tasks.
This machine is perfectly suited for tidying up lawn edges and cutting overgrown grass in areas your lawnmower cannot reach, such as around trees, fence posts, walls, and washing poles.
This model features an automatic single-line feed head. As the line wears down, the head automatically releases more line to maintain the correct cutting length, ensuring continuous operation without manual adjustment.
If the line fails to feed, there are two common causes. Firstly, the line spool may be empty and requires replacement. Secondly, the line inside the head might have become tangled or caught on its own windings. In this case, you can open the head and re-spool the line correctly. For detailed instructions, please refer to the product’s user manual.
| Brand | |
|---|---|
| Cutting Head Compatible cutting attachments included (e.g., Nylon Line, Blade). |
["Nylon Line"] |
| Handle Type (Trimmer) The handle style (e.g., Loop Handle or Bike/Cowhorn Handle). |
Loop Handle |
| Harness Included The type of support harness included with the machine. |
No |
| Line Feed How the trimmer line is advanced (e.g., Bump-Feed, Auto-Feed). |
Auto-Feed |
| Power Output (HP) The tool\'s power output measured in horsepower (hp). |
0.2 |
| Power Output (kW) The tool\'s power output measured in kilowatts (kW). |
0.15 |
| Shaft Type The design of the shaft (Straight, Bent, or Split for attachments). |
Split |
| Power Source The primary energy source (e.g., Petrol 4-stroke, Battery, Electric). |
Cordless |
| TB-Handle Layout |
Loop |
We offer a free delivery service for all machines within a 30 mile radius. Not only that; we build, inspect and run up every machine prior to delivery. Making sure you get a fully functional machine that is set-up and ready for use. On delivery we will run through with you any instructions & maintenance advice so you are comfortable with your new machine.
Free local delivery and handover
Industry trained sales team
In-house machinery repairs
Family run since 1908
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