Ditch the Petrol: Why a DeWalt Cordless Strimmer is the Ultimate Garden Upgrade
There is a familiar routine that comes with an old petrol strimmer. Find the fuel can, measure out the two-stroke oil, prime the engine, pull the cord and hope it starts before your patience runs out. Even when it behaves, a quick tidy around the lawn can leave your clothes smelling of exhaust.
For most domestic gardens, that routine is becoming difficult to justify. Modern DeWalt strimmers offer strong cordless cutting performance without fuel mixing, pull-cords or exhaust fumes at the point of use. Fit a charged battery, load the line and squeeze the trigger.
The result is a garden tool that is easier to start, simpler to store and far more convenient when the lawn edges only need ten or fifteen minutes of attention.
Why More Gardeners Are Moving Away from Petrol Strimmers
Petrol strimmers still have their place. Contractors clearing large areas of dense vegetation may need the sustained output of a heavy-duty petrol machine. For a typical driveway, lawn, fence line or garden path, however, petrol can be more work than the job itself.
The engine needs fuel, oil and periodic maintenance. Fuel can also deteriorate when left sitting for long periods, which is particularly inconvenient for a machine that may spend most of the winter in a shed. Then there is the starting process. Anyone who has repeatedly pulled a cord on a cold engine will understand why a cordless trigger feels like a meaningful upgrade.
A DeWalt cordless strimmer removes most of that preparation. There is no carburettor to worry about, no separate fuel supply and no hot engine to handle after use. You still need to replace the cutting line and keep the guard clean, but the general maintenance burden is much lower.
The Cordless Advantage: Proper Cutting Power Without the Engine
Early battery garden tools often felt like compromises. They were convenient, but their performance could drop sharply as soon as the grass became thick or wet. The latest DeWalt trimmer range is built around more efficient motors, higher-capacity batteries and stronger line systems, giving cordless machines far more authority through long grass and untidy edges.
Brushless motors are a major part of that improvement. Instead of using carbon brushes to transfer power inside the motor, a brushless design manages the motor electronically. This reduces internal friction and helps the tool make better use of the available battery charge. It also removes the need to replace worn motor brushes.
On models such as the DeWalt DCMST561N-XJ 18V XR Brushless String Trimmer, the motor is paired with a variable-speed trigger. That matters because not every part of the garden needs maximum power. You can ease off around delicate borders and increase the speed when you reach thicker patches.
Unlike a petrol engine, the motor only runs while you are pressing the trigger. There is no engine idling while you move between different parts of the garden, and no exhaust cloud following you along the fence.
Why the DeWalt 18V Strimmer Is the Sweet Spot for Most Homes
Bigger voltage figures can look more impressive on a product page, but more power is not always the most practical choice. For the average homeowner, a DeWalt 18V strimmer offers a strong balance between cutting ability, manageable weight and battery cost.
The 18V platform is well suited to routine jobs such as:
- Cleaning up grass along a driveway or path
- Trimming underneath fencing and garden furniture
- Reaching grass that a lawn mower cannot cut
- Clearing around trees, raised beds and posts
- Cutting back moderate patches of longer grass and weeds
The DCMST561, for example, has a 36cm cutting width. That is wide enough to cover ground efficiently without making the machine unnecessarily cumbersome around flower beds and narrow paths. Its split-shaft design also allows the tool to be separated into a more compact form for transport or shed storage.
DeWalt states a runtime of up to 40 minutes on low speed under no-load conditions. Real cutting time will vary according to grass density, line condition, speed setting, battery condition and how continuously the trigger is held. Even allowing for that difference, a high-capacity battery should provide enough working time for many standard domestic edging and clearing jobs.
The DeWalt DCMST561: A Practical All-Rounder
The DCMST561 is a useful example of what a modern DeWalt strimmer 18V can offer. It combines a 400 MWO brushless motor with two speed ranges and a fully variable trigger, allowing the user to balance cutting power against battery runtime.
Its Quickload spool uses 2mm twisted DeWalt line, which is substantial enough for ordinary lawn edges, weeds and moderate overgrowth. The bump-feed system lets you release additional line while working, rather than stopping every few minutes to adjust the spool manually.
Comfort is also important with a tool that is held away from the body. The adjustable auxiliary handle lets you alter the working position, while the balanced layout helps make the strimmer easier to guide along a lawn edge. It is still a full-sized garden tool, so users should not expect it to feel weightless, particularly with a large battery fitted. Compared with many petrol alternatives, however, there is no fuel tank or engine assembly adding weight and vibration at the rear.
Body Only or Complete Kit?
DeWalt sells many cordless tools in both body-only and complete-kit configurations. Choosing between them depends mainly on whether you already own compatible batteries.
Choose a body-only DeWalt trimmer if you already own 18V XR tools
The DeWalt DCMST561N-XJ body-only strimmer is supplied without a battery or charger. This makes sense when you already own compatible DeWalt 18V XR batteries from a drill, impact driver, circular saw or another cordless tool.
Instead of paying for another charger and battery, you can buy the machine itself and use the power packs already in your kit. This is one of the strongest reasons to stay within an established cordless platform.
Check the voltage before ordering. A DeWalt 12V battery will not power an 18V tool. For a full-sized garden machine, a high-capacity 18V XR battery is also more useful than a small compact pack because it provides longer working time between charges. Toolden stocks a broad selection of DeWalt batteries and chargers for expanding an existing setup.
Choose the complete kit if this is your first DeWalt 18V tool
The DeWalt DCMST561P1-GB 18V XR String Trimmer Kit includes the strimmer, a 5.0Ah battery and a charger. It is the more straightforward choice for someone starting from scratch.
A 5.0Ah battery gives the strimmer a useful amount of working time without moving into the size and cost of DeWalt’s largest battery packs. Once you own the battery and charger, you can also use them with other compatible 18V XR tools.
That could include a cordless blower for gathering grass clippings, a hedge trimmer for seasonal maintenance or one of Toolden’s DeWalt 18V drills and impact drivers for work around the home.
How the DeWalt Battery Ecosystem Saves Money
The initial price of a cordless tool does not tell the whole story. The real value becomes clearer as the number of compatible tools grows.
With separate petrol machines, each tool has its own engine, fuel system and maintenance requirements. A cordless system replaces those individual engines with a shared collection of rechargeable batteries. One battery can move from your drill to your strimmer, then into a blower or hedge trimmer.
This does not mean that one battery is always enough. Garden tools can place sustained demand on a battery, so owning two packs is useful for larger jobs. You can work with one while the other is charging. The important point is that those batteries are not limited to one seasonal tool.
For anyone who already owns a collection of DeWalt 18V XR power tools, buying a bare DeWalt trimmer 18V can therefore be substantially more economical than starting a second cordless platform.
DeWalt 18V or 54V FlexVolt: Which Strimmer Do You Need?
The 18V range will cover the needs of most domestic users, but it is not the only option. DeWalt also produces 54V FlexVolt garden equipment for more demanding clearing work.
| Model | Best suited to | Platform | Cutting width | Package |
|---|---|---|---|---|
| DCMST561N-XJ | Existing DeWalt 18V XR owners | 18V XR | 36cm | Body only |
| DCMST561P1-GB | First-time buyers and domestic gardens | 18V XR | 36cm | Battery and charger included |
| DCM571X1-GB | Larger plots, rough vegetation and heavier clearing | 54V XR FlexVolt | 38cm | Battery, charger and brushcutter tri-blade included |
The DeWalt DCM571X1-GB 54V FlexVolt String Trimmer is the more convincing petrol alternative for users who regularly deal with heavier vegetation. It has a 38cm cutting swath and is supplied with a brushcutter tri-blade for tougher clearing work.
That additional capability also brings extra size and weight. If your usual job is tidying the edge of a lawn after mowing, an 18V machine is likely to be the more comfortable and cost-effective choice. If you are clearing rough ground, thick weeds or a much larger area, the 54V model becomes easier to justify.
Getting Better Runtime from a DeWalt Cordless Strimmer
Battery capacity matters, but the way the tool is used can have just as much influence on runtime.
- Use low speed for light grass: Maximum speed is unnecessary when cleaning a neat lawn edge.
- Do not force the head into dense growth: Work through thicker material gradually rather than burying the line in one pass.
- Keep the line at the correct length: Damaged or badly adjusted line can reduce cutting efficiency.
- Trim regularly: Short, frequent maintenance sessions place less demand on the tool than cutting several weeks of overgrowth at once.
- Start with a fully charged battery: This is particularly important when the strimmer has been stored for a long period.
- Keep a second battery available: Rotating two batteries is useful for larger gardens or when several cordless garden tools are being used on the same day.
Is It Finally Time to Retire the Petrol Strimmer?
For routine garden maintenance, the argument for petrol is getting weaker. Most homeowners do not need an engine, fuel can and pull-cord simply to tidy the grass around a driveway once a fortnight.
A modern DeWalt trimmer starts immediately, stores cleanly and can share its battery with tools you may already own. The 18V models provide the most practical balance for ordinary gardens, while the 54V FlexVolt range is available for users who need greater clearing capability.
The important thing is to choose the machine according to the work. An 18V strimmer should not be presented as a replacement for every large petrol brushcutter. For lawn edges, paths, fence lines and normal garden overgrowth, however, it is often the tool that makes more sense.
Explore the full range of DeWalt strimmers at Toolden, including body-only machines for existing XR users and complete kits supplied with batteries and chargers.

Frequently Asked Questions
Are DeWalt strimmers suitable for home gardens?
Yes. DeWalt’s 18V XR strimmers are particularly well suited to lawn edges, driveways, paths, fencing and general garden maintenance. Users regularly clearing very dense vegetation or larger areas may be better served by a 54V FlexVolt model.
Which is the best DeWalt 18V strimmer for domestic use?
The DCMST561 is a strong all-round choice. It has a brushless motor, 36cm cutting width, variable-speed control, split shaft and Quickload spool. Choose the DCMST561N-XJ body-only version when you already own batteries, or the DCMST561P1-GB kit when you need a battery and charger.
Can I use my DeWalt drill battery in a DeWalt cordless strimmer?
A compatible DeWalt 18V XR slide battery from a drill or impact driver can be used in an 18V XR strimmer. A 12V battery is not compatible. Check the voltage and battery platform before fitting or purchasing a battery.
What size battery is best for a DeWalt strimmer 18V?
A 5.0Ah battery provides a useful balance of runtime, size and weight for normal garden work. Smaller batteries may operate the tool but will generally require more frequent charging. Larger compatible packs can increase runtime but will also add weight.
How long does a DeWalt 18V strimmer battery last?
The DCMST561 is rated for up to 40 minutes on low speed under no-load conditions. Actual cutting time will usually be lower and depends on the battery capacity, vegetation, speed setting, line condition and working technique.
What does body only mean on a DeWalt trimmer?
Body only means the strimmer is supplied without a battery or charger. It is intended for customers who already own compatible DeWalt batteries. The cutting head, guard and standard tool components are still included as specified on the product page.
Can a DeWalt cordless strimmer replace a petrol strimmer?
For ordinary domestic edging and grass trimming, an 18V cordless model can replace petrol for many users. For rough ground, thick vegetation and frequent heavy clearing, a more powerful 54V FlexVolt strimmer or dedicated brushcutter is the more appropriate comparison.
What cutting line does the DeWalt DCMST561 use?
The DCMST561 uses 2mm twisted DeWalt cutting line and features a Quickload bump-feed spool. Replacement line should match the diameter and type recommended for the machine.
What is the difference between a strimmer and a trimmer?
In everyday UK use, the terms are commonly used to describe the same type of line-cutting garden tool. Product listings may call the machine a string trimmer, grass trimmer or strimmer, depending on the manufacturer and retailer.
Need some help with your order? Our new help centre has a wide range of helpful articles and guides!
If you have any additional queries, please do not hesitate to contact us below:

