Home » Product Reviews » Home & Outdoors » Garden » Lawn Mowers » Bosch UniversalRotak 2x18V-37-550 (2×4.0Ah) 0.600.8B9.E70 Lawn Mower review
The Bosch UniversalRotak 2x18V-37-550 is a cordless, battery-powered push lawn mower designed for hassle-free mowing on typical UK gardens. With a 37 cm cutting width, dual 18V batteries (36V total) and a 40-litre grass box, it aims to give you the freedom of cord-free mowing without stepping up to a bulky petrol model.
Bosch is a well-established name in garden tools, and this mower sits in the mid-to-upper bracket of cordless options, focusing on practicality and ergonomics rather than fancy smart features. A user rating of 3.9 out of 5 from 21 reviews suggests most owners are happy, though there are a few niggles that keep it from being a standout crowd favourite.
Overall, it looks like a solid choice if you want a modern cordless mower for a medium lawn and value comfort and easy storage as much as raw cutting power.
The UniversalRotak 2x18V-37-550 is best suited to homeowners with small to medium-sized gardens, up to around 550 m², who want the freedom of cordless mowing. If your lawn is roughly the size of a typical suburban back garden, this mower’s 37 cm cutting width and 40-litre collection box should feel well matched.
It will particularly appeal if you are upgrading from a corded electric mower and are tired of dodging a power cable. The brushless motor and lithium-ion batteries are designed to offer reliable performance with less maintenance than a petrol alternative, making it a good fit for those who want a modern, low-fuss option.
Comfort-focused features like the ergonomic, adjustable and foldable handle make it a sensible choice for anyone who finds traditional mowers awkward or tiring to push. If storage space is tight, the “Easy Store” design and compact footprint will also be a real advantage.
If, however, you have a very large lawn, need to mow in all weathers, or want a rock-bottom budget model, this particular mower may not be the best match for your priorities.
Cordless operation powered by dual 18V lithium-ion batteries means you can move freely around the garden without trailing a cable or worrying about finding an outdoor socket. It is far more convenient than a corded mower for gardens with awkward shapes, trees or multiple lawn areas.
The 37 cm cutting width and adjustable cutting height range from 25 to 70 mm give enough flexibility for most UK lawns. You can keep grass short and neat in summer, or raise the deck for longer, wetter or rougher patches without scalping the turf.
A 40-litre grass collection box is generous for a mower aimed at up to 550 m², reducing how often you have to stop and empty clippings. That saves time on every cut and keeps the lawn tidy with minimal raking afterwards.
The edge cutting function is a real plus, helping the blades reach closer to borders and walls so there is less follow-up strimming to do. For many gardens, that means you can get a clean finish in one pass.
Comfort is clearly a focus, with an ergonomic, adjustable and foldable handle. That makes the mower easier on your hands and back during longer sessions, and simpler to store in a shed or garage when not in use.
The manufacturer warranty is only 1 year, which feels on the short side for a cordless mower at this price point. Many rivals now offer longer cover, which may give more peace of mind for frequent use.
While the mower is recommended for lawns up to 550 m², heavier grass or sloping gardens may still challenge battery run time. There is no quoted run-time figure here, so if your lawn is at the upper end of the stated area, you might find you need to work briskly or recharge between cuts.
It is not weatherproof, so you will need to be cautious about mowing in damp or showery conditions and make sure it is stored fully under cover. Those used to more rugged petrol machines may find this a little limiting.
Finally, the feature set is focused on the basics. There are no advanced extras like self-propulsion or smart connectivity, which some buyers might expect in higher-end cordless models, especially at a relatively premium price.
Day to day, the Bosch UniversalRotak 2x18V-37-550 is designed to be straightforward to live with. The on/off switch and simple height adjustment make getting started quick, so you can be mowing within minutes of taking it out of storage.
The cordless design removes the usual cable dance of a mains-powered mower. Moving around flower beds, trees and furniture becomes more relaxed, with no need to plan your route around a lead. The push design and brushless motor should feel smooth in use, with less vibration than many older corded or petrol models.
The adjustable, ergonomic handle helps you find a comfortable mowing position, whether you are tall or shorter, and the foldable design makes it easier to tuck away in a shed or tight corner of a garage. That “Easy Store” approach is ideal if you share storage with bikes, bins or other garden tools.
Collecting clippings is uncomplicated thanks to the 40-litre grass catcher. For typical medium lawns you can often complete a cut with only a couple of stops to empty, and the catcher keeps the garden tidier than mulching-only designs. Regular cleaning of the deck and blades is still advisable, but the simple rotary blade design makes maintenance relatively straightforward.
At the heart of this mower is a 36V system, using two 18V lithium-ion batteries with 4.0 Ah capacity. Combined with the brushless motor, this should deliver efficient power for regular weekly cuts on a medium lawn without the starting issues or fumes associated with petrol engines.
The 37 cm cutting width is well judged for typical UK gardens: wide enough to keep mowing times sensible, but narrow enough to navigate around beds, paths and play equipment. The adjustable cutting height from 25 to 70 mm lets you adapt to the season and lawn condition, from a close, manicured summer cut to a higher setting that is kinder to stressed or uneven grass.
The edge cutting function is one of its more practical features. By getting the blade closer to edges, it reduces the need for separate trimming along fences and borders. For anyone keen on a neat finish without extra tools, this can make a visible difference and save time.
Ergonomics and storage are also strong points. The handle combines adjustability, ergonomic shaping and foldability, which makes the mower more comfortable to push and easier to store. The “Easy Store” branding underlines that Bosch has thought about what happens between cuts as well as during them.
While the mower lacks higher-end extras like self-propelled drive, multiple battery slots for hot-swapping, or smart app integration, it covers the key essentials well: cordless freedom, a sensible cutting range, solid grass collection and a user-friendly design. For many households, those core features matter more than bells and whistles.
With a price of £429.00, this Bosch sits towards the higher end of the cordless electric mower market, reflecting its dual-battery setup, reputable brand and solid build. It is not a budget option, so buyers should expect dependable performance and a comfortable user experience in return.
The specification is strong where it counts for most people: a sensible cutting width, flexible height adjustment, a decent-sized 40-litre grass box and a brushless motor. Cordless freedom and the convenience of lithium-ion power inevitably carry a premium compared with basic corded models, and this mower is no exception.
The 3.9 out of 5 owner rating indicates generally positive satisfaction, though it also hints that not everyone feels it fully justifies the price. The single-year warranty slightly weakens the overall value proposition at this level, as longer guarantees are becoming more common.
Overall, it offers respectable value if you specifically want a Bosch cordless mower for a medium-sized lawn and place a high priority on ease of use and storage. If you are very price sensitive or want the absolute maximum feature set for your money, it may be worth comparing alternatives before committing.
The Bosch UniversalRotak 2x18V-37-550 is a capable, well-thought-out cordless mower aimed squarely at typical UK gardens. It delivers the key benefits of battery power – no cable, easy starting and low day-to-day hassle – packaged in a comfortable, easy-to-store design with a practical cutting width and a useful 40-litre grass box.
Its strengths lie in simple, reliable mowing rather than headline-grabbing extras. The edge cutting function, ergonomic handle and brushless motor all contribute to a clean, comfortable cut for lawns up to around 550 m². For many households, that combination will be exactly what is needed.
The relatively high price and short 1-year warranty do hold it back slightly, and the specification is more solid than spectacular. If you are happy to pay a bit more for the Bosch name, cordless convenience and a focused, user-friendly design, it is a good option. Those wanting the absolute best value or more advanced features might find stronger contenders elsewhere, but this remains a dependable choice for everyday garden care.