Model No. STC1820CM

28cm 18V Lithium-ion 3-IN-1 Strimmer® Grass Trimmer

The 18V lithium-ion 3-IN-1 Strimmer® takes lawn care versatility to a new level. The Strimmer® has a 28cm cutting swath and high torque E-Drive gear system for easy cutting through tall grass and overgrowth. Quickly convert your Strimmer® to edging mode, with the precision guide wheel helping you achieve perfect lawn and flower bed edges. Simply click the Strimmer® into the lightweight wheeled base and use your Strimmer® like a mower, for easier and more consistent cutting over small turfed areas. Part of the BLACK+DECKER 18V lithium-ion system. One battery system, endless possibilities.

Where to Buy


Features + Benefits

  • Click and go - String Trimmer simply clicks into the base, enabling easy change from trimming to mowing and back.
  • Cordless convenience - 18V 2.0Ah Lithium battery technology for long lasting fade free power, without the hassle of a cord.
  • Easy to Store - Store in a shed, garage or cupboard without using precious floor space.
  • Edging - Edging function with precision guide wheel for perfect lawn edges every time.
  • Fast Cutting - 25cm cutting swathe for fast job completion over large areas
  • Height Adjust - Adjustable wheels allow you to easily change the height of cut (40-60mm).
  • Mowing - Lightweight wheeled base allows you to use your string trimmer as a mower, for easier and more consistent cutting over small turfed areas.
  • Powered by E-Drive Technology – High torque gear system powers through even the toughest overgrown areas quickly without clogging.
  • Strimming - Use as a traditional string trimmer to slice through tall grass and overgrown areas of your garden
Black and Decker - 28cm 18V Lithiumion 3IN1 Strimmer Grass Trimmer - STC1820CM

Product Specs

Power Source Cordless
Garden Size Medium
Feed System Automatic Feed
Power Rating 18 V
Cutting Width 28 cm
Edging facility Edging Wheel
Battery Type Lithium-Ion
Battery Capacity 2.0 Ah
Battery Included 1
Charging Time 5 hours
Line cutting speed 5500-7400 rpm
Secondary handle Yes
Line diameter 1.6 mm
Line supplied 9 m
Adjustable Handle Yes
Area of cut 2500 m²
Telescopic shaft Yes
Telescopic distance 315 mm
Sound Power 92 dB(A)
Sound Pressure 76 dB(A)
Vibration 9 m/s²
Weight 2.6 kg
Replacement Spool A6481

18V Li-On 3-IN-1 String Trimmer reviews verified by reevoo
Verified reviews of 18V Li-On 3-IN-1 String Trimmer

out of 10

49 reviews

Ease of use
Value for money
Ease of storage
Overall rating
Scores 8.9 out of 10 based on 49 reviews
out of 10


Luxembourg GB
A great machine at a great price. It is silent and light, and quite frankly works better than my plugged-in strimmer. This tool was chosen over a standard strimmer to go over some steep slopes and narrower paths in my garden which my (large) petrol lawn mower won't reach. The removable base is very useful and the tool works great as a regular strimmer too.
After I purchased this model, I thought i'd go out and purchase other tools to share batteries, but i found that many of the garden tools I would require are of a different voltage - either 7V or 36V. Would have liked to see a more B&D products that accept the same battery pack. It would also be good if the charger was something that could be stuck to a wall in such a way that the battery can be easily slipped in, or even better, if the charge can be done while the battery is on the machine.
Confirmed purchase: 11 May 2020
Published on: 17 June 2020
out of 10


High Wycombe GB
relatively lightweight
the rotation mechanism is very stiff and it is not intuitive
Confirmed purchase: 15 December 2018
Published on: 12 January 2019
out of 10


London GB An Allotmenteer
Very easy to assemble
Cuts grass at the allotment very efficiently
Would like the battery to last longer
Confirmed purchase: 26 April 2018
Published on: 24 May 2018