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MMT 20 Li

Cordless garden multi tool

Featuring in Mountfield's battery-powered freedom100 range, the MMT 20 Li battery multi-tool comes with pole pruner and hedge trimmer attachments and is powered by a 4Ah 20V lithium battery. Lightweight and versatile, this easy to use cordless multi-tool is the perfect partner for any small garden.
  • Powered by STIGA ePower with a 20V 4Ah Lithium-Ion battery
  • 45.5cm hedge trimmer attachment
  • 20cm pole pruner attachment
  • 55cm extension shaft
  • Single harrness
  • 4Ah battery, standard charger and single harness included
  • Battery kit included
  • Free Shipping
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Special Price £189.00 Regular Price £229.00 Your Saving: -£40.00
Vat Included

Product details and specs

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Compact and ergonomic with a streamlined design this battery-powered multi-tool is a great addition to any small garden.

Lightweight and cordless without the mess and fumes of petrol, the STIGA ePower 20V 4Ah battery offers freedom and performance for a range of gardening jobs.

The MMT 20 Li battery multi-tool comes with a 45.5cm bladed hedge trimmer attachment with a 112 degrees rotating cutting head for maximum manoeuvrability. For pruning jobs simply attach the 20cm pole pruner with a 5m/s chain speed and automatic oil pump to keep the chain well lubricated on the job.

The main body can be extended out with the 55cm telescopic extension shaft, giving an impressive maximum reach of 2.75m for the hedge trimmer attachment and 2.55m for the pole pruner attachment. Simply release the quick clips to easily change between attachments.

Running times:
Hedge trimmer attachment with the provided 4 Ah battery - up to 70 minutes.
Pruner attachment with the provided 4 Ah battery - up to 20 minutes.
A single harness is also included.

This superbly versatile multi-tool comes with a 5-year extended warranty. (T&C's apply)

Have you checked out all the other products in the freedom100 series - the same smart battery system powers a number of handheld products and mowers?

For advice on the Lawnmower or garden tool best suited to your requirements please call our Technical Helpline on 0800 669 6325 or contact your local Mountfield Dealer who will be happy to advise you.

What's in the box

MMT 20 Li
MMT 20 Li
Cordless garden multi tool
  • lensBattery
  • lensBattery Charger

Technical specs

General info
100 Series
Battery capacity
4 Ah
0.28 kW
Power source
20 Volt
Battery kit
Motor type
With brushes
Power (hedger function)
150 W
Power (pruner function)
280 W
Maximum motor speed
2500 rpm
Lithium battery nominal energy
36 Wh
Hedger working time (+/- 20%)
75 m
Pruner working time (+/- 20%)
20 m
Cutting system
Cutting length
41.5 cm
Blade length
45.5 cm
Blade teeth speed
2600 spm
Teeth distance
26 mm
Cutting capacity (diameter)
18 mm
Bar type
Sprocket nose
Bar length
20 cm
Bar length (inches)
8 in
Chain type
3/8" .050" (91PJ033X)
Chain speed
5 m/s
Chain oil tank capacity
0.115 l
Chain tensioning system
Side screw tensioning
Handle type
Rear handle
Vibe Control System (VCS)
Shaft tube diameter
26 mm
Hedger attachment
Soft grip handle
Shaft extension
55 cm
Pruner attachment
Tools kit
Battery charger
Single standard
Battery charger output current
2 A
Battery charger plug type
BS (Type G)
Vibration and noise data
Hedger guaranteed sound power level (LwA) dB(A)
Pruner guaranteed sound power level (LwA) dB(A)
Overall dimensions
Pack weight
5.23 kg
Product weight (hedger version)
4.67 kg
Product weight (pruner version)
4.395 kg
Product length
2540 mm
Product width
90 mm
Product height
170 mm
4.67 kg

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What type of maintenance should be done on the saw accessory tool?
To ensure the garden multi tool is functioning correctly and to maximise its lifetime, we recommended that you clean the battery housing and contacts, as well as the space behind the bar cover regularly (depending on the frequency and intensity of use), as dirt and sawdust constantly build up in these areas.
We recommend that you check the chain oil level inside the tank regularly in order to always ensure that the cutting tool is properly oiled. Then make sure that the chain is always running in the track and, if not, thread it yourself or visit an authorised maintenance provider.
It is important to refer to the user and maintenance manual for details of each of these tasks.
Do the cutting blades need maintenance or sharpening?
Cutting (especially cutting hedges) leads to the accumulation of detritus and dirt between the blades. Without the necessary maintenance, this issue can reduce cutting performance.
The blades should therefore be cleaned and oiled after each period of use. This can be done with a dry cloth, using a brush if needed to remove more stubborn dirt. The blades can be oiled by applying a thin layer of specific oil (Stiga recommends using non-polluting products) along the upper edge of the blade.
Please see the user manual for more information on this point.
The blades of the hedge cutting accessory seem to be working as if they are not clean or fluid. What might have happened and what should I do?
Where the blades tend to catch and you notice a reduction of cutting performance, possibly along with more blade noise, you must check the cutting element.
If the problem persists even after cleaning and oiling the blades, the solution is to sharpen them.
For reasons of safety, this is best performed by an authorised Stiga vendor. Once sharpened, the cutting system will return to working precisely and fluidly.
Lastly, please note that an excessively worn or damaged blade must not be sharpened but always replaced. Again in this case, the Stiga vendor network is always available.
What should I do when it is not being used?
During the times when it is not being used, we recommend you clean the teeth of the cutting element and place the garden multi tool in a safe place, ensuring you protect the blade within their storage area.
The line no longer feeds out from the head. What might have happened?
The line failing to feed out may be associated with two main factors. The first, and the most likely, is that the line might be all used up and should therefore be replaced with a new reel. There is also the possibility that the line within the head has accidentally become caught in its own windings, and is preventing the end from freely feeding out through the holes. In this case, simply open the head and re-spool the line correctly inside.
These causes and solutions normally cover the majority of cases, but there may be a variety of others, associated with the methods of use, the surface treated and the weather conditions.
Note that consulting the user manual, in the section relating to the cutting head, may provide useful information for identifying the nature of the problem.

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Only on selected models

Free returns
within 14 days


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