Hi — I’m Mark from EasyLawnMowing, and in this detailed review I’ll walk you through everything I learned while unboxing, assembling, testing and live-running the Worx WG737E 40V cordless lawnmower. I’ve used the mower on my own lawn, stressed it with longer grass, mulched with it and put it through my usual bounce and durability checks so you can decide if this is the right cordless mower for your garden.
WG737E Video Review
This article covers the full experience: what’s included out of the box, a step-by-step assembly walkthrough, an in-depth look at the specifications (batteries, brushless motor, deck, cutting heights), practical testing on normal and very long grass, mulching performance, real-world grass collection, pros and cons, maintenance tips, and an FAQ at the end. I’ll keep the tone practical and straightforward — exactly how I explain things in my videos — and I’ll include screenshots from the review so you can see the important parts clearly.
Quick snapshot: who this mower is for
- Deck size: 37 cm (ideal for medium lawns)
- Battery setup: Takes two 20V 4.0Ah batteries which operate together as a 40V system
- Recommended lawn size: Up to about 500 m² on a single charge (my lawn ~400 m² was easily covered)
- Weight: Lightweight at 15 kg — easy to push and manoeuvre
- Main selling points: Brushless motor, PowerShare batteries, mulching plug included, dual charger supplied
Unboxing: what you get
Right out of the box the WG737E comes ready for assembly with all the key items you need to be mowing the same day. In the kit you’ll find:
- The mower body (folding handles pre-attached in parts)
- 37 cm cutting deck with mulching blade
- 40 L grass catcher consisting of a rigid top, mesh sides and a base
- 2 × 20V 4.0Ah PowerShare batteries
- Dual battery charger
- Mulching plug (fitted under the flap) and small assembly parts
- User guide and assembly instructions
I was particularly pleased that Worx included two 20V 4.0Ah batteries rather than two smaller 2.0Ah packs — that translates to longer runtime, more power and fewer worries when mowing a medium-sized lawn.
The dual charger is another practical inclusion: you can plug both batteries in and charge them simultaneously rather than waiting for a single battery to charge. The PowerShare ecosystem also means these same batteries fit a wide range of other Worx tools, which is a big advantage if you want to expand your cordless toolset.
Assembly: step-by-step and what to watch out for
Assembly is very straightforward. If you’ve ever assembled a cordless mower before, you’ll find this quick. Nevertheless, here’s the exact sequence I used, with tips to avoid common mistakes.
1. Charge the batteries first
Before you assemble the mower I recommend putting both batteries on the charger so they’re ready when you finish assembly. There’s a simple battery status button on each pack that shows the charge level; mine were about three-quarters charged out of the box but I topped them up fully before testing.
2. Lower handle assembly (left and right)
The lower handles are keyed. Each side is left and right specific — look for the groove on the pole and align it with the slot in the plastic bracket on the mower. This stops the handle twisting once tightened. There are three height/angle positions for the handle and you choose the hole that matches the angle you want.
Insert the quick-release bolt with washer from the inside and lock off with the nut on the outside. The quick-release system is handy for fast adjustments and folding the mower down for storage.
3. Upper handle assembly
The upper bars attach easily — feed the bolt from the inside out, then add the washer and the quick-release nut. Be careful not to trap the cable while assembling; there are cable clips provided to tidy everything later.
4. Adjust handle height and clip the cables
I adjusted the handles to a comfortable height for my posture using the quick release levers. There are two quick-release points (mid and lower) so the handle can fold flat. Clip the cable into the provided cable clips to keep the handle tidy and prevent snagging during use.
5. Assemble the grass catcher
The grass catcher has a rigid top, mesh sides and a base. Slot the back of the handle into the rear of the box first, then push down the front to clip in place. The mesh sides are pulled over the metal frame and held by plastic clips — they insert from the inside out so it’s obvious once you see it.
All in, assembly took me a short time and everything felt solid. The clips and quick-release nuts are placed sensibly so the mower folds down compactly for storage when combined with the folding grass catcher.
Detailed specifications and design features
Now let’s dive into what actually matters when choosing a lawnmower: the cutting system, the batteries, the motor type, and the practical design details.
Deck and blade
The WG737E sports a 37 cm cutting deck — a very practical size for medium lawns. Underneath you’ll find a mulching blade fitted as standard. The blade is designed to re-cut the clippings and chop them finely if you insert the mulching plug.
One structural detail I liked: the deck is double-skinned. That makes the shell feel far more rigid and durable than the thinner single-skin decks found on some low-cost competitors. That solidity will help with longevity and resists deformation if you bump a hidden stone or edge.
Batteries and motor
This mower uses two 20V PowerShare batteries that work together to create a 40V system at 4.0Ah. Importantly, they are used simultaneously — not sequentially — which means you benefit from the full 40V output during cutting. The batteries are PowerShare compatible, so they work across other Worx tools.
The motor is brushless. That’s an important point because brushless motors are more efficient, generate less heat, have lower wear, and deliver better run times than brushed motors. In practice you’ll see the motor step up when the grass is heavy and step down when the load is lighter — this is excellent for preserving battery life while maintaining performance.
True Universal Battery Compatibility — A Genuine One-System Solution
One of the most compelling advantages of choosing WORX tools is their authentic “one battery fits all” PowerShare system. Unlike many other manufacturers who claim universal compatibility but actually operate multiple voltage platforms that aren’t interchangeable, WORX has committed to a truly unified approach. Whether you’re using an 20V drill, a 20V hedge trimmer, a 40V chainsaw, or this 80V mower, all tools share the same fundamental 20V battery cells from the PowerShare range.
Many competing brands market themselves as having universal batteries, but in practice they often run separate 18V, 20V, 40V, and higher voltage lines that require completely different battery packs. This means you end up with multiple chargers, incompatible batteries, and essentially separate tool ecosystems despite the marketing claims. WORX has solved this by designing their higher-voltage tools (like this 40V mower) to simply use multiple 20V PowerShare batteries working together, rather than requiring proprietary high-voltage packs. This means the two 4.0Ah batteries in your WG737E can individually power your string trimmer, leaf blower, or any other WORX PowerShare tool in your shed. That’s genuine versatility and a smart long-term investment that maximises the value of every battery you own.
Cutting heights and wheels
Single-lever height adjustment acts on all four wheels simultaneously, with six positions ranging from 20 mm to 70 mm. The minimum 20 mm is unusually low for a rotary mower (many only go to 30 mm), which is great if you prefer a lower finish.
Another practical feature: larger rear wheels. These make turning and changing direction easier, and you’ll notice smoother tracking when you mow around curves and obstacles. There’s no rear roller though, so you won’t get striping on the lawn from this mower — it’s designed for cutting performance rather than decorative stripes.
Grass catcher design
The grass catcher is 40 L and combines mesh sides with a solid top — my preferred configuration. Mesh sides keep airflow and collection efficiency high; the solid top protects the operator from dust and debris when the lawn is dry. The box also incorporates a grass full flap so you can tell at a glance when it needs emptying.
Folding and storage
Handles fold at two pivot points (mid and lower) using quick-release levers. Combine that with the foldable grass catcher and the mower packs down neatly for storage in a shed or garage. At 15 kg it’s an easy mower to lift into a car boot or to slide into a compact space.
Real-world testing: cutting performance on my lawn
Specs are one thing, but how does it actually perform? I tested the mower on a small garden I’ve been watering (so there are areas of longer and lush grass) and a main lawn that had been affected by dry weather. Below I’ve written what I did and what I observed.
Test conditions and setup
- Setting used for primary test: 50 mm (position 4 on the height lever)
- Grass length in some patches: up to 100 mm (10 cm) — longer than recommended for a single cut
- Battery prep: both batteries charged fully before testing
- Mulching plug removed for cut-and-collect tests
Starting and initial impressions
Starting the mower is simple: press the button on the handle and it kicks in. The mower is very quiet compared with petrol machines — I noticed and commented on it in the test. The brushless motor produces less noise and less vibration, and it’s immediately clear that it’s designed to be an operator-friendly, low-noise machine.
The first pass at around 50 mm gave a clean finish. When I hit slightly longer, denser patches, the motor responded by stepping up speed/power. Crucially, it also stepped back down when the load lightened — that responsiveness is what saves battery life. I could hear and feel that change; the mower didn’t labour or stall and cut smoothly through varying densities.
Grass collection and fill pattern
I always judge a mower on how well it fills the grass box, especially from back to front. Some mowers pack the front of the catcher and leave the back empty, making the collection inefficient. The WG737E filled its bag nicely from the back forward, and after a full lawn pass the box was well packed and heavy — a sign of efficient chopping and airflow.
There was no sign of the grass box coming loose during my deliberate bounce test. Some competitors bounce off because they’re poorly supported or use weak clips; the WG737E’s latch system is solid and secure.
Handling smaller lawns and tight turns
On my smaller lawn the larger rear wheels and the crossbar starter handle made manoeuvring and turning very easy. The bar-type handle lets me mow one-handed for tricky turns while keeping the mower going — a subtle but practical advantage if you mow frequently or around lots of obstacles.
Mulching test: why, when and how to mulch
Mulching means leaving finely chopped clippings on the lawn to decompose and return moisture and nutrients. The WG737E includes a mulching plug and fitted mulching blade, so mulching is a built-in option.
How to use the mulching plug
- Remove the grass catcher.
- Insert the mulching plug into the rear deck opening until it clicks into place; there’s a release button so removal is easy.
- Drop the cutting height slightly for mulching (I dropped it one notch).
- Mow regularly and lightly — don’t try to mulch heavy, overgrown grass in one go.
When I mulched after cutting the lawn to a moderate length, the WG737E produced very fine clippings that quickly sank into the turf. On inspection you could see tiny particles flicking up and settling, the ideal result. For dry weather this is especially beneficial — the mulched clippings help retain moisture and add organic matter.
Mulching best practices
- Only mulch when you mow frequently — weekly during active growth is a good rule.
- Take off small amounts each time. Mulching is intended to return tiny clippings, not to handle large volumes of long grass.
- If the grass is damp or very long, consider bagging first and then mulch at a later pass.
Mulching worked very well with the Worx blade and plug; removing the plug is quick thanks to the push-button release — a small design detail that makes a big difference in convenience.
Cutting long, overgrown grass: how the 40V system performed
Some people worry that cordless mowers won’t match petrol power in tough conditions. I tested the WG737E on an intentionally long, tough, straw like patch to see how the 40V brushless system would respond.
I ran the mower at the highest cutting height (70 mm) and pushed it through the longer patch. The motor stepped up noticeably and the mower cut the grass without stalling. It didn’t feel like it was operating at its limit — it handled the stress well, and I attribute that to the twin batteries providing 40V with good amperage and the brushless motor’s efficiency. After that pass I was more confident recommending it for lawn owners who occasionally face longer grass.
Pros and cons — my honest opinion
Worx product codes ending in .9 (e.g. WG543E.9) indicate the bare tool version, which is ideal if you already own compatible Powershare batteries, as it lets you save money by not paying for extras you don’t need.
Verdict — who should buy the Worx WG737E?
If you’ve got a medium-sized lawn up to roughly 500 m² and want a quiet, reliable, cordless mower with the flexibility to mulch or bag, the Worx WG737E is an excellent choice. The included 4.0Ah batteries and dual charger are a standout benefit — you can mow without battery anxiety and charge both packs at once.
Key strengths are the brushless motor’s responsiveness, solid build quality, efficient grass collection, mulching capability, and the convenience of PowerShare compatibility across Worx tools. The only real downside is the lack of a rear roller, so if you want a striped finish you’ll need to look elsewhere or accept that this machine prioritises cutting performance.
For most domestic gardeners, I now consider this my top pick among medium-range cordless mowers because it balances power, runtime and convenience so well. It’s a mower that does the job quietly and reliably, and the 3+2 year warranty gives extra confidence.
Model Comparison
Last update on 2026-01-16 / Affiliate links / Images from Amazon Product Advertising API
Where Should I Purchase This Model?
- 37cm Cutting Width and Compact Design - The WG737E lawn mower features a 37cm cutting width, making it perfect for narrow or sloped areas. Despite its power, the mower is super light and compact, weighing only 15.3kg. It can be easily lifted and carried by a teenager, making the mowing experience fun and easy. Plus, its compact design allows for easy storage when not in use.
- Dual Worx NITRO 20V 4Ah PowerShare PRO Batteries - The WG737E lawn mower is powered by two Worx NITRO 20V 4Ah PowerShare PRO Batteries, providing powerful and eco-friendly cordless battery power. These batteries ensure a longer runtime, allowing you to mow your lawn without the need for frequent recharging. Plus, they are part of the Worx PowerShare system, meaning you can use them with other Worx tools, providing convenience and cost savings.
- Robust Brushless Motor and IntelliCut Technology - The WG737E lawn mower is equipped with a robust Worx Brushless Motor and smart IntelliCut Technology. These features bring more torque, longer runtime, quiet operation, and extended lifespan, making it an outperformer for 300 to 550㎡ garden area. The mower adjusts its power automatically to tackle thicker grass, ensuring a perfect cut every time. With the WG737E, you get a powerful, efficient, and reliable tool for all your lawn care needs.
- 2-in-1 Bag & Mulch Functionality - The WG737E lawn mower comes with a 2-in-1 bag and mulch functionality. You can easily switch between the mulch plug and grass bag according to your lawn care needs. The bagging collection rate is up to 90%, saving you significant effort on bagging and dumping. The mulching feature returns nutrients back to the soil, promoting a healthier and greener lawn. This versatile functionality makes the WG737E lawn mower a game-changer in fast and efficient lawn care.
- Lightweight and Easy to Use - The WG737E lawn mower is designed with user convenience in mind. Weighing only 15.3kg, it is super light and can be easily lifted and carried around the garden. The mower is also compact, making it easy to store when not in use. Plus, its 37cm cutting width allows for efficient mowing in narrow or sloped areas. With the WG737E lawn mower, lawn care becomes a breeze, saving you time and effort.
Last update on 2026-01-16 / Affiliate links / Images from Amazon Product Advertising API
Maintenance and battery care — how to keep your WG737E running well
Battery tools are simple, but a few good habits greatly extend battery and machine life. Here’s what I do and recommend.
Battery care
- Charge fully before first use: always start with fully charged batteries for accurate runtime tests.
- Avoid storing fully discharged: Li-ion batteries shouldn’t sit at 0% for long periods — charge them to around 50% if storing for months.
- Store in a cool, dry place: heat shortens lifespan, so avoid hot sheds in summer.
- Clean battery contacts: keep the terminals free from grit and moisture — a quick wipe occasionally will help.
Mower maintenance
- Keep the deck clean: brush out clippings after each use to prevent build-up — if you mulch a lot you’ll want to ensure the underside is clear.
- Sharpen the blade annually: a sharp blade reduces strain on the motor and gives a better cut — frequency depends on use and if you hit debris.
- Check fasteners: quick-release bolts and plastic clips should be checked occasionally for tightness and integrity.
- Inspect grass box mesh: if the mesh becomes clogged with wet clippings, clean it to restore airflow.
Storage hints
Fold the handles and the grass catcher for compact storage. If storing for the winter, remove the batteries (store separately) and clean the deck.
Safety and operational tips
- Always remove the batteries when performing maintenance or turning the mower on its side for cleaning.
- Clear the lawn of stones, toys and other debris before mowing to avoid damage to the blade or deck.
- Use ear protection if you’re sensitive to noise — brushless motors are quiet but not silent.
- Don’t mulch excessively long grass; cut high first and bag the heavy material, then return to mulch on subsequent passes.
FAQ — Common questions I get about the WG737E
Q: What lawn size is the WG737E best suited for?
A: With the two 4.0Ah batteries included, I found it suitable up to around 400–500 m² on a single full charge, depending on grass conditions. Heavier or longer grass reduces runtime, so plan accordingly.
Q: Does it come with batteries and a charger?
A: Yes — Worx includes two 20V 4.0Ah PowerShare batteries and a dual charger in the kit I tested.
Q: Can I buy this mower as a bare unit if I already have Worx batteries?
A: Yes — Worx often sells bare tools that accept PowerShare batteries, which is a cost-effective option if you already own Worx battery packs.
Q: Is the mulching plug included and is mulching effective?
A: The mulching plug and mulching blade are included. Mulching is effective when you mow frequently and take light cuts. The WG737E produced fine clippings that settled into the lawn nicely in my tests.
Q: How noisy is the mower?
A: It’s significantly quieter than petrol mowers. The brushless motor reduces noise and vibration; it’s a very pleasant machine to use in terms of sound levels.
Q: Does it leave stripes on the lawn?
A: No — the mower does not have a rear roller, so you won’t get striping. It focuses on a clean, even cut instead.
Q: How low can it cut?
A: It adjusts down to 20 mm, which is lower than many rotary mowers that typically bottom out around 30 mm.
Q: How durable does it feel?
A: The deck’s double-skin construction and overall build quality felt robust in my use. The grass box and handle attachments are solid, and the mower withstood my bounce test without height changes or the box coming loose.
Q: What warranty does Worx provide?
A: Worx supplies a three-year standard warranty for this mower, and you can extend it by registering the product to get an additional two years (5 years total). That gives peace of mind for domestic users.
Q: Is this mower better than a petrol alternative for domestic use?
A: For most domestic users I’d recommend cordless. You avoid fumes, noise, and ongoing servicing issues. The 40V system paired with brushless technology offers enough power for regular garden use and occasional tougher patches.
As a seasoned expert in the field of garden power tools, I have dedicated over a decade to working with and reviewing a wide variety of lawn mowers. My extensive experience has allowed me to gain a deep understanding of the benefits and limitations of different types of mowers and garden tools.
Over the years, I have honed my skills in writing informative articles and creating helpful videos for various blogs and publications. This has given me the ability to not only recognise what makes a good lawn mower, but also to help you choose the perfect garden tool for your specific needs and requirements.
With my wealth of knowledge and expertise, I am confident that I can provide you with valuable insights and recommendations when it comes to selecting the right lawn mower for your lawn. So, whether you're looking for a battery cordless, electric, petrol, or robotic mower, you can trust in my expertise to guide you towards the best option for your garden.
