Ryobi 18V vs 40V Mower: Let’s Find the Right Mower for Your Lawn

Homeowners face plenty of choices in the world of cordless lawn care, and Ryobi’s 18V and 40V mowers highlight two very different approaches to the same task. The 18V mower shines with its lightweight build and compact frame, making it easy to guide around tight corners and store in limited spaces.

It suits small to mid-sized yards where convenience and quick operation matter most. The 40V mower, on the other hand, comes equipped with more power and endurance. Its stronger motor and longer runtime allow it to tackle thicker grass and wider areas without slowing down.

Each mower serves a unique purpose, and both showcase Ryobi’s push toward efficient, eco-friendly lawn care. Understanding the distinctions between the two helps yard owners avoid guesswork and pick the tool that best matches their outdoor needs, from light touch-ups to full-scale lawn maintenance.

 

Ryobi 18V vs 40V Mower: Which One Fits Your Yard?

Battery-powered lawnmowers have become a favorite for many homeowners. No gas, no fumes, and less noise. Ryobi makes some of the most popular cordless mowers. Two models stand out: the Ryobi 18V ONE+ OLM1833B and the Ryobi 40V Brushless Cordless Lawn Mower.

At first, both look similar. They are both battery-powered and compact in design. Yet they target different types of lawns and users. The 18V model is lighter and better for small gardens. The 40V model is stronger and covers more ground in less time.

Ryobi 18V Cordless Lawnmower

About This Tool

The Ryobi 18V ONE+ mower is made for smaller lawns. It has a 33 cm cutting width and works well in areas up to 200 m². It belongs to the Ryobi ONE+ system, which means the same 18V battery can power more than 200 Ryobi tools.

The mower is light, compact, and easy to store. It also has a foldable handle and adjustable height, making it comfortable for users of different sizes.

Features

• Runs on the Ryobi ONE+ 18V battery system

• 33 cm cutting width for small to medium lawns

• Five cutting height settings (25–65 mm)

• Ergonomic handle with three adjustments for comfort

• EasyEdge grass combs for cutting close to walls and fences

• Foldable design for compact storage

• Semi-rigid 35L grass collection box with level indicator

• Collect and mulching functions available

What We Like

• Very light at only 10.3 kg, easy to push and carry

• Great for small lawns and quick mowing jobs

• Adjustable handle makes it comfortable for anyone

• Cuts close to edges without extra trimming

• Compatible with all Ryobi ONE+ batteries

What We Didn’t Like

• Battery and charger not included

• Not powerful enough for thick or tall grass

• Smaller cutting width means more passes on bigger lawns

My Opinion

The Ryobi 18V mower is perfect for people with a small yard. It’s easy to handle, stores well, and does the job without much effort. If your lawn is less than 200 m² and not too thick, this mower is a very practical choice.

Ryobi 40V Brushless Cordless Lawn Mower

Product Details

The Ryobi 40V mower is built for bigger tasks. It has a 20-inch (51 cm) cutting width and can cover larger lawns with fewer passes. The 40V battery delivers more power, making it strong enough for thicker grass.

This mower has advanced features like push-button start, seven height settings, and a vertical storage design. It is heavier than the 18V model but offers stronger performance for medium to large lawns.

Features

• 40V battery system with brushless motor for more power

• 20-inch cutting width for larger areas

• Seven cutting height positions (1.5 to 4 inches)

• Push-button start for easy operation

• On-board storage for extra battery

• Easy-lift lock-and-release bagger for quick emptying

• Collapsible handles and vertical design for storage

What We Like

• Powerful motor handles tall or thick grass easily

• Wide cutting width saves time on large lawns

• Multiple cutting height options for different needs

• Storage-friendly design despite larger size

• Push-button start feels modern and simple

What We Didn’t Like

• Heavier at 61 pounds, harder to carry or move

• More expensive than the 18V mower

• Batteries and charger add to the overall cost

My Opinion

The Ryobi 40V mower is a better fit for medium or large lawns. It cuts faster and handles tough grass with ease. If you want power and don’t mind the extra weight or price, this mower is a strong investment.

Detailed Comparison: Ryobi 18V Mower vs Ryobi 40V Mower

Both mowers are cordless and come from Ryobi’s trusted lineup. Both are designed for convenience with foldable handles and adjustable heights. Still, their performance levels are different. The Ryobi 18V mower is light, compact, and meant for small lawns up to 200 m².

It works best for homeowners who need a simple mower for quick and easy jobs. It is also more budget-friendly. The Ryobi 40V mower is built for power. It can handle thicker grass, larger areas, and gives more options for cutting height. Its wide 20-inch deck saves time, but the extra weight and higher price may not suit everyone.

In short:

• Choose 18V for smaller lawns, light grass, and budget savings.

• Choose 40V for bigger lawns, tougher grass, and faster mowing.

FAQs

Q1. Can I use the same batteries for both models?
No. The 18V mower uses Ryobi ONE+ 18V batteries, while the 40V mower needs 40V batteries. They are not interchangeable.

Q2. Which mower is easier to store?
Both have foldable handles, but the 18V is much lighter and easier to carry.

Q3. Which mower lasts longer per charge?
The 40V mower usually runs longer and cuts more grass per charge because of its stronger battery capacity.

Q4. Is the 18V good for thick grass?
Not really. It works best for short, light grass. For thick lawns, the 40V model is better.

Q5. Does the 40V mower come with a self-propel option?
Some Ryobi 40V models do, but this specific one is a push mower.

Conclusion

The Ryobi 18V and 40V mowers both offer cordless convenience, but they serve different needs. The 18V mower is light, compact, and perfect for small lawns with short grass. The 40V mower is powerful, wide, and made for bigger spaces with tougher grass.

Your choice depends on your yard size and mowing needs. For small, simple jobs, the 18V model is enough. For large or demanding lawns, the 40V mower is the smarter option.