RYOBI ONE+ 18V 13 in. or RYOBI 40-Volt Lithium-Ion Cordless Attachment? Which RYOBI Model to Buy
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
When comparing the ryobi one 18v 13 in vs 40 volt lithium ion cordless attachment, you are looking at two distinct approaches to yard maintenance. Both tools feature a 4.0 Ah battery and variable speed triggers. The main difference lies in their power systems and versatility. The 18V model offers a dedicated edging function and lighter weight. The 40V model provides a wider cutting path and accepts universal attachments for expanded use.
Key differences
| Aspect | RYOBI 40V 15-Inch Attachment Capable String Trimmer | RYOBI ONE+ 18V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 18V | 40-Volt |
| Cutting Swath | 11 in. to 13 in. | 13 in. to 15 in. |
| Drive Type | Fixed shaft | Attachment capable |
| Line Feed System | Auto-feed | Bump-feed |
| Weight | 7 pounds | 13.9 pounds |
Which one should you choose?
Choose RYOBI 40V 15-Inch Attachment Capable String Trimmer if
- You need a lightweight tool for quick edging tasks.
- You prefer an auto-feed line head for convenience.
- You want a compact unit with a narrower cutting path.
Choose RYOBI ONE+ 18V 13-Inch String Trimmer and Edger if
- You want to use universal gas attachments for other jobs.
- You need a wider cutting swath to cover more ground.
- You prefer a higher voltage system for increased power.
Verdict: Choose the 18V model if you prioritize lightweight handling and edging capabilities. Select the 40V model if you need a wider cutting width and the flexibility to attach other tools. Your decision depends on whether you value versatility or ease of use.
Key Specs Compared Side by Side
Voltage Platform
Product A uses a 40-Volt system, while Product B runs on the 18V ONE+ platform. Higher voltage typically allows for more power under load, which helps when cutting thicker grass or weeds. Product A’s 40-Volt battery is designed for heavier duty tasks. Product B’s 18V battery is optimized for lighter work and easier handling. You already have one of these batteries, so stick with that platform to save money. If you need more power, choose the 40-Volt model. For light trimming, the 18V is sufficient.
Cutting Width
Product A offers a 13-inch to 15-inch adjustable cutting width. Product B provides an 11-inch to 13-inch adjustable cutting width. A wider swath means you cover more ground with each pass. Product A’s maximum 15-inch width is better for larger yards or wider paths. Product B’s narrower range is fine for small lawns or tight spaces. If you want to reduce the number of passes, Product A gives you a wider path. Both allow you to adjust the width to balance speed and run time.
Shaft Compatibility
Product A features an attachment-capable shaft. It accepts RYOBI Expand-It attachments and other universal gas attachments. This lets you swap heads for edging, blowing, or pruning. Product B has a fixed shaft designed only for string trimming and edging via the pivoting head. If you want a multi-tool system, Product A is the clear choice. You can add more tools without buying a new power head. Product B is a dedicated trimmer with no expansion options. Choose Product A if you plan to expand your tool set later.
Weight and Portability
Product A weighs 13.9 pounds. Product B weighs just 7 pounds. The lighter weight of Product B makes it much easier to carry and maneuver, especially for extended periods or overhead use. It reduces fatigue during long jobs. Product A is heavier due to its robust 40-Volt motor and attachment shaft. If you have a small yard or physical limitations, Product B is more comfortable to hold. For heavy-duty work where power matters more than weight, Product A is acceptable despite the extra mass.
Line Feed System
Product A uses a bump-feed string head. You tap the head on the ground to advance the line. Product B uses an auto-feed line head. It advances the line automatically as you cut, requiring no tapping. Auto-feed is more convenient for continuous trimming. You do not need to stop and tap the head. Bump-feed is a traditional method that some users prefer for control. If you want a set-and-forget experience, Product B’s auto-feed is better. If you are used to bump-feed, Product A will feel familiar.
Which RYOBI String Trimmer Fits You
You need a versatile tool for multiple yard tasks
Product A features an attachment-capable shaft, allowing you to connect expand-it or universal gas attachments. This design saves time and space by replacing multiple single-purpose tools. With a 40-Volt system, you get higher power for demanding jobs. The 13 to 15-inch adjustable cutting width lets you choose between a wider path or longer run time. The bump-feed head simplifies reloading line quickly.
You want a lightweight, easy-to-handle trimmer for small yards
Product B weighs just 7 pounds, making it significantly lighter and more portable than the heavier alternative. Its head pivots, allowing you to edge along sidewalks or flower beds without switching tools. The 11 to 13-inch cutting width is ideal for smaller lawns. It includes a 3-year warranty for added peace of mind. The auto-feed head keeps line moving smoothly as you work.
You prefer a simpler, dedicated string trimmer and edger
Product B combines trimming and edging in one lightweight unit. The variable speed trigger gives you precise control over the cutting speed. It accepts both .065 and .080 trimmer line for flexibility. At 28 inches long, it is shorter and easier to store. The 18V ONE+ platform is widely compatible with other tools in the system. This makes it a practical choice for basic maintenance tasks.
The products compared
RYOBI 40V 15-Inch Attachment Capable String Trimmer
Best for: Users with the 40V ecosystem needing attachment versatility
- Voltage
- 40-Volt
- Cutting Swath
- 13 in. to 15 in.
- Power Source
- battery
- Line Feed System
- bump-feed
- Battery Capacity
- 4.0 Ah
- Size
- 15-Inch
View on Amazon: RYOBI 40V 15-Inch Attachment Capable String Trimmer Affiliate link
This RYOBI trimmer uses a 40-Volt 4.0 Ah battery and a 90-minute charger. It features an adjustable cutting width from 13 to 15 inches. The shaft accepts RYOBI Expand-It and universal gas attachments. You get a bump-feed string head and a variable speed trigger. It weighs 13.9 pounds. This model suits users who want versatility with attachments and a longer runtime than 18V options.
Pros
- 40-Volt 4.0 Ah battery for extended runtime
- Accepts RYOBI Expand-It and universal attachments
- Adjustable 13 to 15 inch cutting width
- Variable speed trigger for control
Cons
- Heavier at 13.9 pounds compared to lighter models
- Bump-feed system requires manual tapping to extend line
- No variable speed dial on the shaft, only trigger control
Good fit if
- You already own RYOBI 40-Volt batteries and want to save space
- You need to switch between trimming and edging with attachments
- You prefer a wider cutting path for faster mowing
Skip if
- You strictly use the RYOBI ONE+ 18V platform
- You want a lightweight tool under 10 pounds
- You need an electric bump-feed head for zero-touch line extension
Verdict: RYOBI 40V 13-15 in. String Trimmer fits users who already own the 40-Volt ecosystem and need a versatile shaft for multiple attachments. It offers better runtime than 18V tools but adds weight.
RYOBI ONE+ 18V 13-Inch String Trimmer and Edger
Best for: Small yards and light-duty maintenance
- Voltage
- 18V
- Cutting Swath
- 11 in. to 13 in.
- Line Feed System
- auto-feed
- Battery Capacity
- 4.0Ah
- Cutting Width
- 13-Inch
- Power Source
- Cordless
View on Amazon: RYOBI ONE+ 18V 13-Inch String Trimmer and Edger Affiliate link
This RYOBI ONE+ tool combines string trimming and edging in one lightweight unit. It features a 13-inch cutting width and an auto-feed line head for continuous operation. The included 4.0 Ah battery provides power for standard residential tasks. Its pivoting head allows you to switch to edging mode easily. This model suits users who want a versatile, portable solution for small to medium yards without dealing with cords.
Pros
- Lightweight 7-pound design for easy handling
- Auto-feed line head reduces interruptions
- Pivoting head converts to edger
- Includes 4.0 Ah battery and charger
Cons
- Lower 18V power compared to 40V alternatives
- Smaller 13-inch cutting width limits efficiency
- Shorter runtime due to smaller battery capacity
Good fit if
- You need a lightweight tool for small yards
- You want to switch between trimming and edging
- You already own RYOBI 18V batteries
Skip if
- You have large properties requiring extended runtime
- You need high power for thick weeds
- You prefer a wider cutting swath
Verdict: RYOBI 18V 13 in. String Trimmer fits users with small yards who value versatility and portability over raw power. It is a practical pick for light-duty maintenance tasks.
Specifications side by side
| Spec | RYOBI 40V 15-Inch Attachment Capable String Trimmer | RYOBI ONE+ 18V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 40-Volt | 18V |
| Cutting Swath | 13 in. to 15 in. | 11 in. to 13 in. |
| Power Source | battery | not stated |
| Line Feed System | bump-feed | auto-feed |
| Battery Capacity | 4.0 Ah | 4.0Ah |
| Cutting Width | not stated | 13-Inch |
| Size | 15-Inch | 13 inches |
| Shaft Type | Attachment Capable | not stated |
| Dimensions | 35.4 × 7.8 × 6.7 inches | 28 × 10 × 5 inches |
| Weight | 13.9 pounds | 7 pounds |
| Color | Multicolor | GREEN |
| Model | #RY40250 | P20180 |
Frequently asked questions
Does the 40V model work with other RYOBI attachments?
Yes, the top-ranked 40V tool features an attachment-capable shaft. You can connect Expand-It or universal gas attachments to it. This design allows you to replace multiple single-purpose tools with one versatile unit. It is ideal for users who already own the 40-Volt ecosystem and need flexibility for various yard tasks.
Which trimmer is lighter to carry?
The 18V model is significantly lighter. It weighs only 7 pounds. The 40V version weighs 13.9 pounds. You will feel less fatigue when using the 18V tool for extended periods. This makes it a practical choice for small yards and light-duty maintenance where portability matters more than raw power.
What is the cutting width difference?
The 18V model offers a 13-inch cutting width. The 40V model provides a 15-inch cutting width. The wider path on the 40V tool can help you clear grass faster. However, the narrower 18V width may offer better maneuverability in tight spaces or around garden edges.
Can I use the same battery for both tools?
No, you cannot use the same battery. The 18V tool requires an 18V ONE+ battery. The 40V tool requires a 40-Volt battery. These systems are not compatible. You must choose the platform that matches your existing RYOBI battery collection to ensure the tool functions correctly.
Which model is better for small yards?
The 18V 13-inch model is better for small yards. It is lighter and more portable. It fits users who value versatility and ease of use over raw power. If you have light-duty maintenance tasks, this tool provides sufficient performance without the extra weight of the larger 40V system.
Does the 40V trimmer have a variable speed trigger?
Yes, the 40V model includes a variable speed trigger. This feature allows you to control the speed of the cutting head. You can adjust the power output based on the thickness of the grass or weeds. This provides better control and efficiency during your yard maintenance routine.