Black + Decker STC1820PC-GB Grass Trimmer UK Review 

By  Enda

This is an affordable and high quality strimmer from the popular Black&Decker brand. They are known for making good quality gardening tools at affordable prices. This model uses an 18 volt Lithium-Ion battery, where as the more expensive model, uses a 36 volt battery. The smaller battery in this one does not put buyers off though.

This model gets a high 88% satisfaction rate from buyers, so clearly it more than meets their needs, when it comes to cutting grass, and doing the edges of the lawn.

black and decker cordless strimmer

The STC1820PC-GB is a fast cutting machine that has the very useful automatic feed system for the line. That means no need to have to bump, or tug the line out when it breaks. That alone will save you a lot of time and frustration.

It converts really easily and quickly from a strimmer to an edger, and that allows you to get on with the job a great deal faster. All round this product gets very good ratings and reviews, and buyers think it is very good value for money.

Buyers loved the fact, that you could use this anywhere in the garden, and not have to worry about a trailing lead. That also made it very useful to take to their allotment, or to tidy up graves. Let's have a closer look at the detail.

In a Hurry?

Below we have reviewed this lawn mower in a lot of detail. However, if you don't have time to read all of the information, then you can check the availability at Amazon UK by clicking the button to the right.

How Buyers Rate the Black+Decker STC1820PC-GB

Buyer Satisfaction
  • As you can see online buyers overall have given this an 88% buyer satisfaction rating
  • 67% of all buyers have given this blower a full 5 star review
  • 4% of all buyers gave this product a bad review

This based on 5,500+ online buyer reviews

Pros & Cons

What Buyers Liked

  • This tool works great on tall grass, weeds and handy for taking to a graveyard if you need to keep graves tidy
  • Much lighter than a petrol strimmer so easier on the hands, arms, shoulders and the back
  • The line does not jam or get tangled up which is fantastic
  • Can handle shrubs very effectively - works best with thicknesses of less than 5 mm
  • Work well as topiary shears
  • Great for trimming box hedges
  • Make a great gift for a gardener

What Buyers Didn't Like

  • A few taller buyers (6' 4" + said they wished the telescopic handle extended a little further
  • A couple of buyers said replacement batteries were expensive

Black+Decker STC1820PC-GB Key Features

  • It operates off an 18 volt Lithium-Ion battery pack, that has a fast charger. A full charge lasts between 25-35 minutes, and takes about 2 hours to fully charge
  • It has a 28 cm cutting swathe and on a fully charged battery can cut up to 2,500 linear metres
  • Runs on an economic setting, but that can be increased if required, to get through tougher areas of grass.
  • Easy to change between the strimmer use, and then rotate to use as an edging tool
  • Telescopic handle and second adjustable handle to make sure the strimmer is the right size for your height.
  • Measures 103 x 23 x 4.2 cm and weighs 3.5 Kg
  • The package comes with the trimmer, charger, spool and line

Our Verdict and Summary of the BLACK+DECKER STC1820PC-GB Cordless 28 cm String Grass Trimmer

It is easy to see why this is such a popular choice for a cordless trimmer. It has a very good price point, and is highly effective at cutting, as buyers have shown with such a high satisfaction rating.

For the price it has all the right features that include a fast line cutting speed, an automatic feed system, the telescopic handle and it can also be used to trim the edges of your lawns.

It only takes 40 minutes to fully charge the battery which is fast enough and that allows for about 20-30 minutes of use.

The fact that it is cordless also means no wires to worry about, and also easy to store away when finished.

Check Amazon UK - Price when reviewed £93.84 - 88% buyer satisfaction based on 5,500+ online buyer reviews

If this is not the one for you, then why not have a look at our top rated list.

Black and Decker Brand

Over the past century, Black & Decker has become a household name, famous for high quality and innovative products. Making the job easier has always been at the forefront of Black & Decker’s mission. They are a US based company that originated in Baltimore. They make a whole range of tools, gardening tools, and home equipment.

Generally speaking they are considered to be at the more affordable end of the power tool brands. Their motto is to try and simplify the world of DIY and create tools and products that make the task quicker and easier to perform. They have been around for many years, just over 100 in fact, and they have been responsible for many "firsts" to market.


I am someone who enjoys a little gardening. Now I am not someone who spend hours in the garden, but I do like both my front and back gardens to look really nice. Well kept lawns, neatly trimmed hedges, and borders filled with plants, make a huge difference, to how your property looks.

Enda McLarnon

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