# Ryobi vs EGO cordless mowers

Source: https://mowandedge.co.uk/blog/ryobi-vs-ego-cordless-mowers
Published: 2026-10-12
Publisher: Mow and Edge

**In short:** Neither brand is simply better. Ryobi's 18 V ONE+ mowers suit small lawns and anyone who already owns ONE+ tools, while its 36 V MAX POWER range and EGO's 56 V mowers suit bigger lawns that need wider decks and more watt hours per charge. Pick the battery platform first, then the mower that fits your lawn area.

Ryobi and EGO come at cordless mowing from opposite ends. Ryobi built its name on the 18 V ONE+ battery, which fits a very large range of garden and workshop tools, and added a separate 36 V MAX POWER line for heavier garden machines. EGO runs everything on one 56 V battery system designed for outdoor power tools. This comparison looks at what that means in practice: how much energy each battery holds, the cutting widths on offer, which other tools share the battery and which lawn each one suits.

## The short version

If your lawn is small to medium and you already have a ONE+ drill or trimmer, a Ryobi 18 V mower is the easy choice, because your batteries carry straight over. The 33 cm OLM1833B is a typical example, built for tight gardens rather than big open lawns.

If your lawn is larger, or you want one battery to run a mower, a strimmer, a blower and a hedge trimmer with plenty in reserve, look at Ryobi's 36 V MAX POWER range or EGO's 56 V range. Both are built around higher voltage packs, and higher voltage packs usually hold more watt hours, which is what sets run time.

- **Ryobi 18 V ONE+:** small lawns, existing ONE+ owners, lightest mowers.
- **Ryobi 36 V MAX POWER:** medium to large lawns, wider decks, a separate battery from ONE+.
- **EGO 56 V:** medium to large lawns, one battery across all EGO garden tools.

## Battery platforms compared

Voltage on its own tells you little. The figure that tracks run time best is watt hours, which is volts multiplied by amp hours. An 18 V 5 Ah ONE+ pack holds about 90 Wh. A 56 V 2.5 Ah EGO pack, the size EGO recommends for its ST1510T strimmer, holds about 140 Wh, and a 56 V 5 Ah pack about 280 Wh. Ryobi's 36 V packs sit between the two for a given amp hour rating.

The bigger point is the ecosystem. Ryobi's listing for the ONE+ 5 Ah battery says it gives access to over 40 garden and power tools, and the wider ONE+ range covers drills, sanders and lights as well. EGO's range is narrower but focused on outdoor kit, and every EGO 56 V tool takes the same battery. Ryobi 18 V and 36 V batteries are not interchangeable, so decide which Ryobi family you are buying into.

| Platform | Example pack | Energy |
| --- | --- | --- |
| Ryobi 18 V ONE+ | 18 V 5 Ah (RB18L50) | About 90 Wh |
| Ryobi 18 V ONE+, twin pack mower | 2 x 18 V 5 Ah | About 180 Wh |
| EGO 56 V | 56 V 2.5 Ah | About 140 Wh |
| EGO 56 V | 56 V 5 Ah | About 280 Wh |

Battery energy by platform (Wh = V x Ah)

## Mower specs side by side

The Ryobi figures below come from the OLM1833B listing. EGO does not have a mower in our buying guides, so the EGO column sticks to widely published facts about the range rather than a single model's specs. Check the exact model page before you buy, as EGO and Ryobi both sell several deck sizes and some self propelled versions.

For more battery mowers compared on listing facts, see our [best cordless lawn mower guide](https://mowandedge.co.uk/best/best-cordless-lawn-mower) and, for tight plots, the [small garden cordless mower guide](https://mowandedge.co.uk/best/best-cordless-mower-for-small-garden).

|  | Ryobi OLM1833B (18 V ONE+) | EGO 56 V mowers |
| --- | --- | --- |
| Battery | 18 V ONE+, 5 Ah in this bundle | 56 V ARC Lithium, size varies by kit |
| Cutting width | 33 cm | Wider decks, varies by model |
| Cutting height | 25 to 65 mm, 5 positions | Varies by model |
| Edge cutting | EasyEdge grass comb | Varies by model |
| Drive | Push | Push and self propelled models |
| Shares battery with | ONE+ garden and power tools | EGO 56 V garden tools |

Ryobi OLM1833B against the EGO 56 V mower range

[Compare cordless lawn mowers](https://mowandedge.co.uk/best/best-cordless-lawn-mower)

## Which lawn suits which brand

Start with your lawn area. Measure it with our [lawn area calculator](https://mowandedge.co.uk/tools/lawn-area-calculator), then match it to the mower's suggested area and the watt hours you will carry. A 33 cm deck on a single 90 Wh battery is sized for a small lawn; a wide 56 V deck with a large pack is sized for a lawn several times bigger.

Then think about edges and slopes. Ryobi's EasyEdge comb is designed to let the mower cut closer to a wall or border, which saves strimming on a small plot. On a long, sloping lawn a self propelled model makes more difference than brand, and both EGO and Ryobi's 36 V range offer them.

1. Measure the lawn in m² and note any slopes or narrow side passages.
2. List the cordless tools you already own and their battery system.
3. Pick the platform that matches, unless your lawn clearly needs more watt hours than it offers.
4. Choose a deck width and battery size for your area, and budget for a second battery if the lawn is near the limit.

## Strimmers and other tools on the same battery

Most people buying a mower also want a strimmer. Ryobi sells ONE+ mower and line trimmer bundles, such as the OLM1833B with the OLT1832 trimmer and a 5 Ah battery, which keeps everything on one 18 V pack. EGO's ST1510T is a 56 V strimmer with a 38 cm (15 inch) cutting width, a telescopic aluminium shaft and EGO's Powerload line loading, sold without a battery, so it suits someone who already owns an EGO pack.

If you want a matched pair from the start, our [cordless mower and strimmer set guide](https://mowandedge.co.uk/best/best-cordless-mower-and-strimmer-set) and [cordless strimmer guide](https://mowandedge.co.uk/best/best-cordless-strimmer) list options on both lower and higher voltage platforms.

## Frequently asked questions

**Which lawn mower is better, Ryobi or EGO?** It depends on lawn size and the batteries you already own. Ryobi 18 V ONE+ suits small lawns and existing ONE+ users; EGO 56 V and Ryobi 36 V suit larger lawns that need more energy per charge.

**Do Ryobi 18 V batteries fit Ryobi 36 V mowers?** No. ONE+ 18 V and 36 V MAX POWER are separate battery systems, so check which family a mower belongs to before you buy.

**Can I use an EGO battery in another brand's mower?** Not normally. EGO 56 V batteries are designed for EGO tools, and using adaptors is not something makers support. Check the manual for approved batteries.

**Is higher voltage always better?** Not in itself. Watt hours (volts x amp hours) decide run time, and deck width, blade design and motor matter as much as voltage for cut quality.

## Buying guides on this topic

- https://mowandedge.co.uk/best/best-cordless-lawn-mower
- https://mowandedge.co.uk/best/best-cordless-mower-for-small-garden
- https://mowandedge.co.uk/best/best-cordless-mower-and-strimmer-set
- https://mowandedge.co.uk/best/best-cordless-strimmer