# RYOBI 18V ONE+ 33cm Lawn Mower (Battery & Charger Excluded)

Source: https://www.ranked10.co.uk/garden/best-cordless-lawn-mower/ryobi-olm1833b
Ranked #7 in "Best Cordless Lawn Mower 2026: Ten Ranked on Real Kits": https://www.ranked10.co.uk/garden/best-cordless-lawn-mower

- Price: £160.20 (checked on Amazon UK on 2026-09-05)
- Amazon rating: 4.3 from 2,472 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B07PZXBTQ5?tag=ranked10-21

The RYOBI OLM1833B is our number 7 best cordless lawn mower pick and the mower for the millions of owners already inside the ONE+ 18V system. The title says the important part up front: battery and charger are excluded. The mower itself brings a 33 cm cutting path, five heights from 25 to 65 mm, a 35 litre bag with a mulching plug and a cut to edge grass comb, at a claimed 7.7 kg without the battery, though the sheet lists 10.3 kg.

RYOBI rates it for up to 250 m2 with a 5.0 Ah battery, and the sheet quotes a 45 minute average life, with owners advising two batteries for longer work. With 2,472 ratings at 4.3, the evidence is strong. Everything on this page comes from the Amazon listing rather than our own testing.

## Specification

| Field | Value |
|---|---|
| Brand Name | RYOBI |
| Model Number | OLM1833B |
| Cutting Width | 33 Centimetres |
| Cutting Heights | 25 to 65 mm, five positions |
| Grass Bag | 35 litres with mulching plug |
| Kit | Battery and charger excluded |
| Battery Average Life | 45 minutes per the sheet |
| Coverage | Up to 250 m2 with a 5.0 Ah battery per the listing |
| Weight | 7.7 kg per bullet, 10.3 kg per sheet |
| System | RYOBI ONE+, over 100 tools on one battery |
| ASIN | B07PZXBTQ5 |

## Questions people ask

**Does it include a battery?**

No, the listing title states battery and charger are excluded.

**What is in the box?**

The OLM1833B mower with a 35 litre bag and mulching plug, per the listing.

**How long does a battery last?**

The sheet quotes 45 minutes on average, with owners reporting about 30 minutes in long grass on one battery.

**What weight is it?**

The bullet claims 7.7 kg without battery while the sheet lists 10.3 kg.

**What is the review status?**

2,472 ratings at 4.3 at harvest time.

**Why did it rank seventh?**

For ONE+ owners it is excellent; for new buyers the missing battery makes complete kits better value.