# Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\)

Ryobi OLM1833B cordless 33cm mower for small gardens, edge-cutting and ONE+ battery ecosystem. Check it fits your needs and price trend before buying.

- [Original product page](https://www.ofertitastop.com/uk/product/ryobi-olm1833b-18v-one-cordless-33cm)
- [View offer](https://www.ofertitastop.com/uk/visit/ryobi-olm1833b-18v-one-cordless-33cm)
- Market: UK
- Language: en-GB
- Currency: GBP
- Product updated: 2026-09-22T06:12:35.652Z
- SKU: ofertitastop-uk-111225
- Category: Home & Garden > Lawn & Garden > Outdoor Power Equipment > Lawn Mowers > Walk-behind Mowers
- Source store: amazon UK
- Active deal: Yes
- Price: 160.20 GBP
- Previous price: 177.99 GBP
- Discount: 10%
- Rating: 4.2 / 5
- Reviews: 4729

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

## What this is and who it’s for
The Ryobi OLM1833B is a compact, cordless lawn mower designed for smaller to mid-sized gardens. With a 33cm cutting path and lightweight construction, it aims to strike a balance between manoeuvrability and practical cutting capacity. It’s part of the Ryobi ONE+ system, meaning it can share a single battery with over 100 tools, which can be convenient if you already own or plan to build on the ONE+ ecosystem.

## How it performs on paper
On paper, this mower offers 5 levels of cutting height from 25 to 65 mm and a telescopic handle with three positions, which should help users adjust for different lawn conditions and user heights. The 33 cm width keeps it easy to push around tight corners, edges and around borders, and the mower includes a periphery mowing capability to reach closer to borders. A grass comb feature is noted to help cut right to the edge without needing a separate trimmer.

## Strengths you’ll notice in use
If you prioritise a quiet, cable-free operation and simple setup, this model ticks the basic boxes: no mains lead to snag or petrol to manage, and a straightforward height adjustment for varying grass heights. The ONE+ compatibility can be a real plus for households already invested in Ryobi tools, allowing you to expand your toolkit without buying multiple batteries. The potential autonomy claim of up to 250 m² with a 5.0 Ah battery aligns with typical small to medium lawn sizes, assuming you already own or plan to purchase the appropriate battery.

## Limitations and caveats
It’s important to note that the battery and charger are not included, which means additional cost if you don’t already own a compatible ONE+ pack. The cutting width is modest, so larger or more rugged lawns will require more passes and time, which isn’t ideal if you’re after a speedy cut across a big space. The spec sheet doesn’t provide details on mulch or bagging capacity, so you’ll need to clarify how you plan to dispose of clippings if that matters to you. If you have uneven terrain or tall, thick grass, you may notice the need for more effort or more frequent emptying.

## Who it suits best
This mower is well-suited for small to moderate-sized urban gardens, especially for existing Ryobi ONE+ users who want to keep battery use streamlined across tools. It’s a sensible pick if you value cable-free use, compact storage, and edge-cutting capability without buying heavy petrol-powered equipment.

## Who might want to skip it
If your lawn is very large, uneven, or requires frequent heavy-duty use, a wider-cut, more powerful model or a mower with built-in mulch/bagging capacity might be more efficient. If you don’t already own a ONE+ battery, the extra cost could offset the appeal of the system.

## Buying considerations before you hit add to cart
Check whether you already own a compatible ONE+ battery and charger, if not, factor that cost into the total. Consider how often you’ll need to cut, how you manage grass clippings (mulch, bag, or compost), and whether the 33 cm width will require multiple passes on your lawn’s shape. The edge-cutting feature can be convenient, but it’s worth testing how well it performs on your borders in practice.

## Practical usage note
A typical session often starts with a quick check of the grass height and a quick edge pass along borders. If your lawn has tight corners or irregular borders, the 33 cm width may feel limiting at first, but the light weight and telescoping handle can help you keep manoeuvrability comfortable.

## Technical snapshot (brief)
- Cutting path: 33 cm (13 in)
- Height options: 5 levels, 25–65 mm
- Handle: 3-position telescopic
- System: Ryobi ONE+ (battery shared with other tools)
- Battery/Charger: not included

## What to know before you buy
If you’re new to Ryobi ONE+ and don’t yet own a battery, you’ll need to purchase one separately, which changes the total cost and time to practical use. If you already have ONE+ gear, this mower can slot into your existing battery ecosystem without duplicating hardware.

## FAQ
- Can I use this mower with any Ryobi ONE+ battery? It’s designed to be compatible with ONE+ batteries, but verify the capacity and fit with your specific battery model.
- Does it come with a grass bag? The base information doesn’t specify bagging, you may need to confirm whether bagging or mulching is supported and what’s included.
- Is it suitable for tall grass? It’s aimed at standard residential lawns, performance may drop in tall or very thick grass, requiring more passes or a more powerful mower.

## Final decision
Should you buy it? It makes sense if you want a compact, cordless mower that fits into the Ryobi ONE+ ecosystem and you have a smaller lawn where edge mowing and easy storage are priorities. If you have a larger lawn, uneven terrain or need built-in mulch/bagging options, you may want to consider alternatives or a larger platform.

## Images

![Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\) — 1](https://www.ofertitastop.com/i/hJmof0WSDEP2Mlh911EsXEx8RBAc-5z00lUV60L0dbH9Yag-MUxkyeiESo4_bLK68Kn3AbVzNH6Uwi4KBdmL0CtXhIe_leZZ0f_rG1pdkX-xBU6f27DIn3OZ0A.jpg)

![Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\) — 2](https://www.ofertitastop.com/i/qmtKF2FAi2Kt02z1hLWy3zvP7vzeUk3yEkJqFk6y4T_1xUlK8vZ4RBnZDS34halH-3HRAujKyFj1i78q9vz3OC3Wfdt22a5n18YtYVOASPN3zKSo65kp0C3z-A.jpg)

![Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\) — 3](https://www.ofertitastop.com/i/6PsQTmL2FxOFLS81x_DRwDtzTQKcbFdX8UHB7KjU3n-CC9eZ4g1nCmq-sED9ZyxvYWEzJaOL4VQPpjcuHDIbycvrY6x7ToWRT9OuwYhNvcjiEJLKEwQTAYa_Aw.jpg)

![Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\) — 4](https://www.ofertitastop.com/i/WUhFgOOxmVzmsfTlpfpVbRYHD7ZjZJHOZPYzBGCf1mBxbSoCbAkcplaFlTXiSZbGGz0JYv7s15nndyCESjnwsbS72xuKEqHvTE3zh9SJSJ1hwGLdrNfLem7dYw.jpg)

![Ryobi OLM1833B 18V ONE+ Cordless 33cm Lawnmower \(Battery & Charger Excluded\) — 5](https://www.ofertitastop.com/i/-BZG88-Ggtzxr9jq0EPeF-3rcQbkXVUApny4m3IvxR1dtL6nEImKFchdVbm8Anq2AF0xNE22nVkfJcVm0jmqEVoRbFOYVUdaeAqbAz5FEfnGDq2drKGmGPPKwA.jpg)