Cordless Grass Trimmers

Tested and reviewed by Fred-in-the-shed

Updated 18th April 2018

On This Page

Black & Decker 36v Grass Trimmer

Bosch 36v Grass Trimmer

Black & Decker 18v Grass Trimmer

Bosch 18v Grass Trimmers

Small Shrub and Grass Trimmers

Stihl Shrub and Grass Trimmer

 

Return to Homepage

 

I test new Bosch 18v & 36V Cordless Grass Trimmers

& compare to the Black & Decker 18v & 36V Strimmers

Cordless grass trimmers are far more convenient to use than mains powered trimmers. Until recently cordless grass-trimmers suffered from poor battery power and life that is aggravated by seasonal use and long periods of storage.

Due to the high price of a replacement battery, many of these tools ended up at the tip as soon as the batteries failed.

The new lithium ion technology now makes these handy power tools far more viable since the batteries are more powerful and can survive long periods of not being used.

All new models use Li-ion batteries so my advice is not to buy any tool with the old Ni-cads as they will be discontinued soon.

 

BEST CORDLESS GRASS TRIMMER - Based on 2 year test

BLACK & DECKER 36v TRIMMER

   

Powerful, well balanced, trims horizontal AND vertical edges.

Same battery powers chainsaw and other tools!

 This 36v Black & Decker model works out at about half the cost of the Bosch model but has many advantages.

The replacement spools are much cheaper and it also has the all important head adjustment so it can do vertical edges.

The same, 2 amp hour battery fits the B&D cordless chainsaw, mower, hedge trimmer and leaf blower.

 

 Black & Decker GLC3630L20-GB 36V Cordless Strimmer

 Black & Decker A6481 Spool & Line For Reflex Strimmer

Black & Decker CLM3820L2-GB 36V 2.0Ah Lawn Mower with 2 Batteries

BLACK+DECKER GKC3630L20-GB 30 cm 36 V Lithium Chainsaw

Return to top of page

Bosch 36V Cordless Grass Trimmer Review

Bosch ART 30-36 LI Grass Trimmer

This is the biggest trimmer made by Bosch and uses a dual line made from a new ultra tough material.

Available without battery and charger, great if you already have the mower or with a 2.6amp Li-ion battery that has been tried and tested over the last 10 years in the Bosch Rotak mowers. The build quality is very good and it cuts like a demon. Weight and balance is good but would be better with a harness.

The ART30-36 has a fitting for a harness but none is supplied - use link below if you want a suitable one.

 Oregon Strimmer Grass Trimmer Or Brushcutter Double Shoulder Harness Q539173

 

The downside is this head only cuts horizontally. So no side trimming!

A replacement spool with 6m of line costs around 12 or you can buy 24m of line to fit your empty spool if you like fiddling around

A heavy tool like this really needs a harness - which Bosch have omitted to supply.

Bosch ART 30- 36Li  Cordless Grass Trimmer & Rotak 37Li Mower

BOTH CAN USE THE SAME BATTERY

2 different batteries available

 2.6 and now 4.0 amp hour replacement 36v batteries

Bosch 36 V Battery 2.6 Ah

 Bosch 36 V Battery 4.0 Ah

If you are cutting large areas of grass or thick weeds then the 36v Bosch trimmer has plenty of power.

If you want to trim lawn edges then the Black & Decker 18v and 36v cordless models will do a better job as their heads can be rotated.

 Bosch ART 30-36 LI Grass Trimmer

 Oregon Strimmer Grass Trimmer Or Brushcutter Double Shoulder Harness Q539173

  Bosch Strimmer Spool 6 m x 1.6 mm ART 30-36 LI

 Bosch ART-35 Replacement Cutting Wire - 24m

Return to top of page

 

 

Small Lightweight Cordless Grass Trimmers

Best Buy Small Cordless Strimmer Based on 3 years Testing

Black & Decker STC 1820-GB 18v Lithium-ion Cordless Grass Trimmer

BLACK+DECKER 18V Strimmer

This new strimmer uses the standard nylon line in a spool to trim, and a slide-in 18v Lithium-Ion (Li-Ion) battery that holds 2 amp hours of charge. It can be recharged in 2 hours and gives a run time of around 20-30 minutes.

A nice feature is the wheel that enables easy trimming of lawn edges. Just turn the tool on its side and run it along the edge. The handle has telescopic height adjustment with a good range and the line gives a 28cm cut.

On the handle there is also an extra button to switch between eco and turbo mode . The idea is to gain extra battery time by using less power for lighter work. Does it work? Yes, use the low setting just for grass edging, and the high setting for thick grass or weeds.

A unique accessory can transform the tool into a mini mower by attaching a small deck with wheels on. This was an idea I had years ago and was really chuffed to see it appear, and even more chuffed to try it and find that it is ideal for a quick tidy when my small lawn occasionally grows in patches.

Trimmer shown with optional deck attached

 BLACK+DECKER STC1820CM-GB 18V Lithium Strimmer with Lawn Mower Deck Attachment

I would like to make it absolutely clear that this will not replace a lawn mower on anything but the smallest lawn and even then you would have to keep the grass fairly short as the decking attachment is useless on long grass. The reason for this is that the deck prevents the grass from clearing so for long grass use the strimmer without the deck.

I have used this product over 2 seasons and am pretty impressed, it also uses the easily available and cheap A6481 spool.

   

 BLACK+DECKER STC1820PC-GB 18V Li-Ion 28cm AFS String Trimmer

 BLACK+DECKER STC1820CM-GB 18V Lithium Strimmer with Lawm Mower Deck Attachment

 BLACK+DECKER A6481 Spool & Line For Reflex Strimmer

 Black & Decker BL2018-XJ 18V 2.0Ah Battery

 

Use link below to buy just the strimmer with no mower attachment

BLACK+DECKER STC1820PC-GB 18V Li-Ion 28cm AFS String Trimmer 

Return to top of page

 

 
 

Bosch 18v Cordless Grass Trimmer Range

Bosch ART 26-18 LI  (26 cm Cutting Diameter)

Bosch ART 23-18 LI has a 23cm wide cut

Pictured above is the Bosch ART 26-18 LI cordless trimmer. This is a well balanced and easy to use trimmer and has the all important swivelling head to enable you to trim the top AND side edges of your lawn. It also has a telescopic handle that adjusts to your height. This battery powered trimmer uses small plastic blades instead of a nylon spool.

Some people dislike the plastic blades as the original ones were brittle Nylon that broke easily when you trimmed against concrete paths or along brick walls.  However many users prefer them as they are so easy to replace, unlike most nylon line spools that are great when new but then seize up with time as they get covered in dead grass, dirt and moisture.

To counter this failing Bosch have introduced a new type of plastic blade that is much tougher and is called the Durablade.

I have been testing these new blades and can confirm that they are tougher and I found it very difficult to damage one, even running it along grass growing against a brick wall. Having said that I think if you are going to trim along hard surfaces you may get a better result with the Black & Decker 18v line strimmer. Plastic trimmer blades are a bit like marmite, people love them or hate them.  It is also worth noting that the 18v trimmers are for domestic use and for cutting GRASS. For anything tougher then I recommend the larger 36v dual line trimmers. 

NEW IMPROVED Blades for Bosch Cordless Trimmers

 Bosch F016800371 23 cm Strengthened Durablade for Grass Trimmer

 Bosch F016800372 26 cm Strengthened Durablade for Grass Trimmers

 

 Bosch ART 26-18 LI 18 V Cordless Lithium-Ion Grass Trimmer (Baretool)

This new models have an 18v 2.5 amp hour battery and use the black shark fin like plastic safety blades.

Charging time 1 hour - run time approx 35 minutes , weight 2.5kg

This Bosch "Power4 all" batteries can be used in a range of Bosch power tools including the hedge trimmer and combi drill shown below

DO NOT CONFUSE THESE GRASS TRIMMERS WITH THE OLD ONES THAT USED INFERIOR BLADES

USE MY LINKS TO ENSURE YOU BUY THE LATEST VERSION

 

LARGER CAPACITY SPARE BATTERIES NOW AVAILABLE

Use this link for the best value genuine Bosch 18v Li-ion batteries.

Bosch 18V Battery

Bosch 18V Li-ion battery 2.5AH

 

COMING SOON -  GTECH ST20

Click here for more info on Gtech cordless garden tools

Return to top of page

 
 

 

 
 

Small Battery Powered Electric Grass Shears

Metal Bladed - "Clipper Type"

Von Haus versus Bosch Isio

Alternative to Nylon Grass Trimmers

Personally I don't like electric trimmers that cut with Nylon cord or blade. I find that the cord is likely to become brittle over time and break, fail to self feed and can be hard to replace or find replacement cord.

The plastic blades are easier to replace but are even worse than cord for breaking when they hit something hard like a path or edging material.

For small jobs I prefer an electric version of the sheep shear that has long lasting  metal blades and a 7.2volt lithium ion battery that can run for up to 125 minutes.

This type of tool has been around a long time and is well tested. The Bosch Isio is the most versatile as it can be fitted to a telescopic handle and have wheels attached.

You can also turn your Isio, or Von Haus grass trimmer, into a small hedge shear.

With a few simple clicks you can remove the grass shear blades and replace them with a small hedge trimming blade!

 

 

 

IMPORTANT NEWS

NEW IMPROVED BOSCH ISIO - MUCH EASIER TO SWAP BETWEEN BLADES

Grass AND shrub trimming from one tool

The Bosch ISIO can be converted from a grass shear to a small shrub trimmer in seconds and is surprisingly efficient. Running time is very good thanks to the Li-ion batteries and I get 20 minutes use which includes some woody shrub material. The the battery will last between re-charges when cutting softer material.

The latest version of this tool has a anti-jam electronics that stops and reverses the blades the instant resistance is detected.

This feature makes a lot of difference with the shrub attachment, especially when the battery is running low as this is when any trimmer is more likely to get stuck on a thick stem.

In fact the anti-stall technology makes this small tool better at cutting hard shrubby stems than some of its more powerful rivals!

  

 Bosch Isio Cordless Shrub/ Grass Shear

 Telescopic Handle for Isio

 Bosch Sprayer Attachment for Isio III Shrub & Grass Shears

Also available - Virtually useless ISIO battery powered sprayer attachment!

 

Breaking News - Fredshed tests the Von Haus alternative to the Isio

VonHaus 7.2V Lithium-Ion Cordless 2 in 1 Grass and Hedge Trimmer with bar and wheel plus charger

This bargain trimmer (orange & black) has all the features of the Isio but has a more powerful 7.2v battery.

The blade is also wider than the Isio and the switch more comfortable. It comes with the extension handle and shrub cutting blade.

Von Haus is a UK based company that specify gardening and DIY tools to be made for them in various factories in China.

In fact Bosch do this as well, especially with their cheaper products and those stocked by the big DIY chains. 

This makes quite a difference in the time the trimmer will run and type of material it will trim.

The Von Haus battery can be removed and replaced which makes it more environmentally friendly in my opinion.

The battery can also be used in other 10.8v Von Haus tools.

For the money it looks excellent and in my initial tests is more effective and comfortable to use than the more expensive Bosch Isio.

The Isio has a slightly longer telescopic handle which may be useful if you are 5' 10" or above.

 

 

Return to top of page

Stihl HSA 25 - Tested and reviewed by Fred

This superb tool is like the Bosch Isio on steroids!

It has a 10.8v Li-ion battery a wider blade and superb build quality.

It comes with a handy case to hold the charger and shrub trimmer blade.

A long handle and wheels is also available so you can use it from standing.

 Stihl HSA 25 Cordless Shrub & Grass Shears

 Replacement Battery for Stihl HSA 25 Cordless Shrub/Grass Shears

 

Return to top of page

 

Discontinued Cordless Grass Trimmers

Gtech ST05 Cordless Grass Trimmer

 Gtech launched new grass & hedge trimmers in 2008 using Li-in technology and I tested one extensively.

The Gtech ST05 has a small blade but long handle. Initial results are very impressive as the tool is so light yet cuts very well. The 14.4v battery is built in and recharges in about 30 minutes, ( a long tea break).

The ST05 is a more advanced version of my much loved Gtech ST01 that used a separate battery that you kept on your belt.

As with its bigger brother the ST04 it has a telescopic handle, rotating head, and uses plastic blades that are great unless you want to trim up against hard objects like paths and walls.

  Plastic Blades For Gtech ST01 Trimmer - Pack of 20

The 14.4v Lithium-Ion battery is sadly built in so if it fails the whole tool is landfill

 

Larger Alternative from GTECH

The Gtech ST20 was launched in 2016 and uses a slide-in 18v Li-ion battery and a belt drive to make it lightweight.

COMING SOON -  GTECH ST20 - TESTED AND REVIEWED BY FRED

Click here for more info on Gtech cordless garden tools

 

Spools and Blades For Discontinued Cordless Grass Trimmers

 
 

CEL 18V Cordless Grass Trimmer

This was part of a range of garden and DIY powertools that used the same Li-ion 1.2amp hour battery.

The trimmer and spools are still available

  

 CEL 10" (25cm) 18V CELgarden POWERline Trimmer (Naked) LT2

 

Similar Product-  GTECH ST20 - TESTED AND REVIEWED BY FRED

Click here for more info on Gtech cordless garden tools

Wolf Cordless Trimmer vs. Bosch Cordless Trimmer

Wolf GT 845 Cordless grass trimmer with wheels - Replaced By Wolf GTA700

This used to be my favorite grass trimmer and has now been replaced with the new model below. This model has an 18v  Li-ion battery the same as the Bosch model above but the wolf trimmer is 30 more expensive and its battery cannot be used in so many other products.

 WOLF-Garten GTA700 18 V Li-Ion Trimmer - Red/Yellow

Flymo Sabre Cut 24v Cordless System

This multi tool system used a powerful but heavy lead acid battery that you carried via shoulder strap.

There were 3 tools available, a hedge trimmer, grass trimmer and a blower.

They are no longer available but you can still buy line for the grass trimmer.

 Genuine Flymo Single Line Spool and Line to suit Sabre Trim and Contour Power Pluss Cordless FLY047

   

Choosing the Best Replacement Trimmer Line

Improve Your Trimmers Cutting Performance With an Advanced Design Replacement Line.

If you want to strim thick tough material like weeds then buy a star shaped or twisted line.

If you just trim the grass at the edges of your lawn and want a nice finish then get the thinnest normal round profile line as this will cut cleaner and neater.

Oregon Nylium Starline Trimmer Line for Over Grown Grass and Weeds with Five Cutting Edges

Oregon Red Line  Round Trimmer Line for Low Grass and Edges

 

 
 

If you found this page useful and decide to buy this grass trimmer at a later date please come back and use my links as this helps keep my site going, thanks, Fred

 

 
 

 

The Wolf BS 80 metal bladed grass and shrub shear (Discontinued)

   

 Update - all models have been discontinued but spare parts remain available.

  Wolf-Garten 7095093 Replacement Hedge Cutter

I have a spare (new) replacement hedge trimmer blade for the Wolf BS80 if you want a bargain.

Return to top of page

 

 
 

Return to Homepage

 

If you found my advice helpful and would like to support my work, please return to this page and use my links when purchasing your tools.

Also any other products bought from Amazon at the same time will produce a small commission that helps cover my hosting costs.

 

Or - if you prefer you can make a small donation using the PayPal button below thanks, Fred

 

 

click on the shed to return to the homepage

USE LINKS BELOW TO FIND MORE GARDEN AND DIY TOOLS

 

 

GARDEN TOOLS

 

Chainsaws

Digging Tools

Forks and Spades

Grass Trimmers

Hedge Trimmers

Hedge Shears

Hoes and Weeding

Lawn Tools

Loppers

Mowers

Pruning Tools

New Products

Rakes

Secateurs

Scaryfiers

Shredders

Watering Equipment

 

DIY TOOLS

Angle Grinders  

Cordless Drills

Jigsaws

Multi- Tools (powered)

Pick Axes and Crowbars

Screwdrivers

Sanders

 

OTHER PRODUCTS

LED Bulbs

Solar Garden Lights  

Torches

Vacuum Cleaners-cordless

Copyright Fredshed 2018