Black + Decker GLC3630L20-GB Grass Strimmer UK Review 

BLACK+DECKER 36 V Lithium-Ion Strimmer Review

Thanks for taking the time to read our review of the Black and Decker 36 Volt Strimmer with the model number GLC3630L20-GB. This is a cordless strimmer with a powerful 36V battery.

This strimmer is rated very highly by online buyers this product very highly, and have an overall satisfaction rate of 90%.  This is also the biggest selling cordless strimmer on Amazon in the UK, with over 1,500 online buyer reviews

Simply because of the great reviews, we have made this number one on our list of cordless trimmers,It is not a cheap choice and the average price is around £135, with an RRP of £170. This is for the strimmer and battery.

You can also get this one with a spool and line bundle for a few extra pounds. If you want an extra battery, that option is also available, and it will cost an extra £55 to have that option.This strimmer is well designed and very powerful for a battery style trimmer.

Buyers who bought this use it for a number of grass cutting activities and also for creating neat edges on their lawns and gardens.

All our product recommendations are based on our independent research which we conduct online by reading the many reviews we find at online websites. This review contains affiliate links and we may receive a commission for purchases made.

You can read our affiliates page to find out more and also read about how we write our reviews

BLACK+DECKER 36 V trimmer

BLACK+DECKER 36 V Lithium-Ion Strimmer Specification

It is always worth reading about the specification as that is the best way of knowing exactly what you are getting. It also helps you decide if this is the right choice for your own specific needs.

Key Specification Details

  • IHas a powerful Lithium battery so no cords to worry about
  • Comes with one 36 volt battery and a fast charger - The battery lasts for a long time around 35-45 minutes, per charge
  • The automatic single line feed system will save you hours of frustration - no more bumping or tugging at lines
  • Uses a high torque gear system to deal with even the tallest of grass, or the toughest of weeds.
  • Telescopic handle to allow for height adjustment to suit your height
  • Has a second adjustable handle, that allows you to hold the strimmer with both hands - and helps find a good centre of balance

Video Overview

  • Weighs 3.5 Kg (considered to be lightweight for a strimmer)
  • Measures 110.4 x 24.2 x 11.8 cm
  • 30 mmm cutting swathe
  • 2-year guarantee

According to the manufacturer, Black and Decker, with one fully charged battery, you can cut up to 3750 linear metres.That is impressive and sets this one at the top of the pile for a longer lasting battery.

Top Tip

Spare batteries - To order spare batteries look for Part Number BL2036 online

How Buyers Rate the Strimmer?

Buyer Satisfaction
  • Overall buyers have given these strimmers an average buyer satisfaction rating of 90%
  • 79% of all buyers have given this a full 5 star review
  • 4% of all buyers gave these a bad review

Buyer Overview

What Buyers Liked

  • Buyers got around 35-45 minutes of use from a fully charged battery
  • Not having to worry about having an electrical cord trailing behind them
  • Twisting head that makes edging easy
  • Cuts long grass with ease
  • Easy to handle
  • Not having to worry about starting up a petrol strimmer
  • Very light and that really helps with user fatigue

What Buyers Didn't Like

  • There were not that many complaints
  • Many thought that the battery simply wouldn't last but it did

Our Verdict on these 36V Cordless Strimmers from Black & Decker

There are plenty of contented gardeners who own this product and it has a 90% satisfaction rating. This product sells more than any other product online when it comes to buying a cordless strimmer.

However is these are not the ones for you, then check our top rated list here.

These have a high-torque gear system, and that really helps power through the toughest of any over grown area. The battery life is excellent.

It has a 30 cm cutting swathe, and that makes it an excellent choice for larger gardens.


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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