Garden Review
    Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower lawn mower

    Ryobi

    Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower

    4.3/5
    Small to medium gardens where you already own (or plan to invest in) the Ryobi ONE+ battery system.
    Cordless (Battery)
    Push Lawn Mower
    33cm cut
    Mulching

    Verdict

    Ryobi OLM1833B review (2026, UK)

    Our Ryobi OLM1833B review (2026, UK): Small to medium gardens where you already own (or plan to invest in) the Ryobi ONE+ battery system.. We tested the OLM1833B on real UK lawns to see whether it earns a place in 2026's shortlist — below you'll find our verdict, full specs, pros and cons, live UK prices, and how the OLM1833B compares with other Ryobi mowers.

    Our editorial rating: 4.3/5 · Tested by Garden-Review for UK gardens.

    Where to Buy

    amazon

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    Overview

    The Ryobi OLM1833B is an 18V ONE+ cordless lawnmower with a 33cm cutting path designed for easy manoeuvrability around small to medium gardens. Part of the Ryobi ONE+ system (100+ tools sharing one battery), it features an EasyEdge grass comb so you can mow right to the perimeter, 5 cutting heights (25–65mm) and a 3-position telescopic handle. Up to 250 m² coverage with an 18V 5.0Ah battery. Battery and charger sold separately.

    Key Features

    Ryobi OLM1833B Pros & Cons

    Pros

    • Lightweight at 10.3kg — easy to push and store
    • No cable or petrol — quiet and low-maintenance
    • Edge-cutting comb saves trimming afterwards
    • Battery interchanges with whole Ryobi ONE+ range

    Cons

    • Battery and charger sold separately
    • 33cm deck best for small/medium lawns, not large gardens
    • No self-propulsion

    Technical Specifications

    TypePush Lawn Mower
    PowerCordless (Battery)
    Cutting Width33 cm
    Self-PropelledNo
    MulchingYes
    Grass CollectionYes
    Rear RollerNo
    Garden Sizesmall, medium
    Terrainflat

    Not sure this is the right mower for you?