Product · RYOBI
Ryobi OLM1833B 18V ONE+ 33 cm with mulching plug
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This is the body only version of Ryobi's OLM1833B, a 33 cm mower on the 18V ONE+ system. It comes with a mulching plug and a 35 litre collector but no battery or charger. It is aimed at small lawns and at the many households that already have ONE+ batteries from a drill or garden tool.
- Cutting width
- 33 cm
- Clipping modes
- Collect, mulching plug
- Battery
- Not included (18 V ONE+)
- Cutting height
- 25 to 65 mm, 5 levels
- Stated lawn size
- Up to 250 m² per 5.0 Ah charge
In its favour
- A mulching plug is included alongside the 35 litre grass collector.
- Weighs 7.7 kg without battery, according to the listing, so it is easy to carry and store.
- EasyEdge grass combs help it cut up to the lawn edge.
Good to know
- Body only, so a ONE+ battery and charger are extra.
- Up to 250 m² per 5.0 Ah charge suits small lawns rather than medium ones.
Our take
Small deck, light frame
Ryobi lists the weight at 7.7 kg without a battery, which is very light for a mower with a grass box. A 33 cm deck is easy to push around beds and through narrow gates, and all terrain wheels are mentioned. The handle is telescopic with three positions and folds or comes off for storage.
The specs also show a higher figure of 10.3 kg, which may include packaging, so treat the 7.7 kg as the bare machine.
Mulching and edges
A mulching plug is included, so you can switch from collecting into the 35 litre bag to returning clippings to the lawn. Five cutting heights from 25 to 65 mm cover normal garden use.
EasyEdge grass combs on the deck are designed to lift grass at the edge so the blade can reach it, which reduces the strimming needed afterwards.
Battery and coverage
Ryobi says a single 18V ONE+ 5.0 Ah battery covers up to 250 m². Smaller packs will cover less. The ONE+ range runs to over 100 tools on the same battery, according to the listing, so the pack you buy for this mower can also run a strimmer, blower or hedge trimmer.
Who should look elsewhere
If you have no ONE+ batteries, a complete kit is better value in effort and setup. The Yard Force LM G37A arrives with two batteries, a mulching plug and a rear roller. If your lawn is bigger than about 250 m², the Greenworks G40LM41 with a 4 Ah battery covers up to 500 m². Anyone with a sloping or bumpy lawn should also note that a light, narrow mower is easy to steer but will take more passes than a wider deck. On a small, flat lawn that trade hardly matters, which is where this mower makes most sense.
Verdict
The OLM1833B body only is a neat buy for small lawns when you already own Ryobi ONE+ batteries and a charger. It is light, mulches and gets close to edges. Newcomers should choose a kit such as the Yard Force LM G37A, and owners of medium lawns will find the Greenworks G40LM41 covers more ground.
Compared with alternatives in: Best cordless mulching mowers
Amazon listing title: RYOBI 18V ONE+ 33cm Lawn Mower (Battery & Charger Excluded)