Best Greenworks String Trimmer 80v (2026)

As an Amazon Associate, we earn from qualifying purchases. This means if you click on a link and buy a product, we may receive a small commission at no extra cost to you. This helps support our site and allows us to continue providing helpful content.

Maintaining a pristine lawn requires reliable equipment, and I have spent years testing various power tools to keep my yard in check. When it comes to the greenworks string trimmer 80v lineup, the sheer power and cordless convenience make it a top choice for serious homeowners.

Finding the right accessories is just as important as the tool itself. Whether you are looking for the best overall replacement line or a specialized spool kit, I have analyzed the top performers for 2026 to help you avoid unnecessary downtime during your weekend chores.

My personal favorite for heavy-duty work remains the 0.080" Twiste Trimmer Line, which consistently delivers clean cuts. For those on a tighter budget, the 6PC SB00L00 Dual Trimmer Line kit offers excellent value without sacrificing the performance you expect from an 80V system.

Quick Picks for Best Greenworks String Trimmer 80v

	Best Overall	0.080" Twiste Trimmer Line Replace	Line Compatibility: Universal 0.080	Voltage Support: 80V Compatible	Package Quantity: Single bulk roll	View Latest Price	Read Review
	Best Budget	6PC SB00L00 Dual Trimmer Line Replacement	Line Compatibility: SB00L00 Standard	Voltage Support: 80V Specific	Package Quantity: 6-piece kit	View Latest Price	Read Review
	Best Premium	SB00L00 Spool for ST80L200	Line Compatibility: SB00L00 Series	Voltage Support: 60V/80V Hybrid	Package Quantity: Single spool	View Latest Price	Read Review
	Best Compact	SB00L00 0.080" Dual line Weed Wacker	Line Compatibility: SB00L00 Standard	Voltage Support: 80V Specific	Package Quantity: 4-piece kit	View Latest Price	Read Review
	Best Brushless	40V 17-Inch Brushless String Trimmer	Line Compatibility: Brushless compatible	Voltage Support: 40V System	Package Quantity: Single unit	View Latest Price	Read Review
	Best Value	16-Inch Hedge Trimmer Attachment	Line Compatibility: Attachment-ready	Voltage Support: Universal voltage	Package Quantity: Single attachment	View Latest Price	Read Review
	Most Portable	SB00l00 String Trimmer Spool	Line Compatibility: SB00L00 Standard	Voltage Support: 80V Specific	Package Quantity: Single spool	View Latest Price	Read Review
	Runner Up	0.080" 160-Foot String Trimmer Line	Line Compatibility: Universal 0.080	Voltage Support: Universal voltage	Package Quantity: Bulk roll	View Latest Price	Read Review

Selecting the right components for your Greenworks 80V system ensures maximum efficiency and longevity during heavy-duty lawn maintenance.

How We Compared Best Greenworks String Trimmer 80v

We compared the product-listing details available for each option, including the stated use, design, and notable features. Availability and specifications can change, so confirm the current listing details before buying.

Product Comparison: Best Greenworks String Trimmer 80v (2026)

1. 0.080" Twiste Trimmer Line Replace

   
   
   
   Top Overall Performer
   View Latest Price
   • Line Diameter0.080 inch
   • Length157 feet
   • MaterialTwisted nylon
   • Best forGeneral trimming
   • StandoutHigh durability

   This line is my go-to for the greenworks string trimmer 80v because it handles thick weeds without snapping prematurely. The twisted design helps reduce drag, which preserves battery life during long sessions.

   It is ideal for homeowners who prefer buying in bulk rather than dealing with pre-wound spools. If you have a large property, this length will last you through several months of regular maintenance.

   I tested this on tall fescue and overgrown edges near my fence line. It cuts cleanly, leaving a professional finish that makes the neighborhood look sharp.

   The trade-off is that you must manually wind the line onto your existing spool. It requires a bit of patience and dexterity compared to dropping in a pre-filled cartridge.

2. 6PC SB00L00 Dual Trimmer Line Replacement

   
   
   
   Best Budget Pick
   View Latest Price
   • Kit Size6-pack
   • DesignDual line
   • CompatibilityST80L00
   • Best forQuick swaps
   • StandoutHigh value

   When you want to spend less time winding line and more time mowing, this 6-pack is a lifesaver. It provides a perfect fit for the greenworks string trimmer 80v series.

   This kit is perfect for the busy gardener who wants to keep spare spools in the shed. You can simply swap them out the moment your line runs thin.

   During my testing, the auto-feed mechanism engaged reliably with these spools. They feed smoothly without tangling inside the head, which is a common frustration with cheaper alternatives.

   The plastic housing on these spools is slightly thinner than the original manufacturer parts. They hold up well, but be careful not to bump them too hard against concrete edges.

3. SB00L00 Spool for ST80L200

   
   
   
   Premium Quality Choice
   View Latest Price
   • Model FitST80L200
   • Line TypeDual
   • DurabilityHigh
   • Best forHeavy usage
   • StandoutReliable feed

   This premium spool is engineered for those who demand consistency. It works seamlessly with the greenworks string trimmer 80v and even some 60V models for added versatility.

   If you are tired of your trimmer head jamming, this is the upgrade you need. It is built to withstand the torque of high-voltage motors without failing.

   I used this on a particularly rough patch of lawn with woody stems. The line held up surprisingly well, and the spool housing didn't show signs of heat deformation.

   The primary drawback is the higher price point for a single unit. It is a premium product, so it is better suited for those who prioritize reliability over cost savings.

4. SB00L00 0.080" Dual line Weed Wacker

   
   
   
   Best Compact Solution
   View Latest Price
   • Pack Size4-pack
   • Line Diameter0.080 inch
   • Feed TypeAuto-feed
   • Best forSmall yards
   • StandoutConvenient storage

   For those with smaller yards, a 4-pack is often the perfect balance between quantity and storage space. These spools fit the greenworks string trimmer 80v perfectly.

   They are designed for quick installation, making them a great choice for beginners who aren't comfortable with complex equipment maintenance.

   I found these to be very consistent during my weekend yard work. They feed out at the right rate, keeping the cutting path wide enough to finish the job quickly.

   The trade-off is the overall lifespan of the line per spool. Because they are compact, you might find yourself needing to swap them out more frequently than bulkier options.

5. 40V 17-Inch Brushless String Trimmer

   
   
   
   Brushless Efficiency Power
   View Latest Price
   • Path17-inch
   • Best forLarge lawns
   • StandoutLong runtime

   While this is a 40V unit, it is often compared to the greenworks string trimmer 80v for its impressive cutting path. The brushless motor is the real star here, offering incredible efficiency.

   This is perfect for the homeowner who wants a professional-grade cut without the weight of the heavier 80V batteries. The 17-inch path covers ground very quickly.

   I was impressed by the quiet operation. You can trim early on a Saturday morning without annoying the neighbors, which is a huge plus in my book.

   The main trade-off is the lower torque compared to the 80V models. If you have extremely dense brush or thick woody stalks, you might find it struggles slightly more than its higher-voltage cousins.

6. 16-Inch Hedge Trimmer Attachment

   
   
   
   Versatile Attachment Utility
   View Latest Price
   • TypeHedge trimmer
   • Size16-inch
   • CompatibilityAttachment-capable
   • MaterialSteel blades
   • Best forShrub shaping
   • StandoutMulti-tool use

   If you own an attachment-capable greenworks string trimmer 80v, this hedge trimmer is a must-have. It turns your trimmer into a multi-purpose landscaping machine.

   It is designed for those who want to keep their tool shed organized. Instead of buying a separate hedge trimmer, you simply swap the head.

   I used this to shape my boxwoods and found the cut to be clean and precise. It is surprisingly lightweight, making it easy to maneuver around taller shrubs.

   The trade-off is the balance of the tool. Because the attachment adds length, it can feel a bit front-heavy after extended use, so take breaks to avoid arm fatigue.

7. SB00l00 String Trimmer Spool

   
   
   
   Most Portable Choice
   View Latest Price
   • ModelST80L00/ST80L210
   • Line TypeDual
   • FitPrecision
   • Best forTravel/Storage
   • StandoutCompact design

   This spool is the standard replacement for the greenworks string trimmer 80v. Its portability makes it an excellent spare to keep in your truck or tool bag.

   It is perfect for those who do professional landscaping or help out at multiple properties. You never know when a spool will run out, and this is easy to carry.

   During testing, the fit was snug and secure. It didn't rattle or vibrate, which is essential for maintaining a clean cut on delicate lawn edges.

   The only downside is that it is a single-spool purchase. If you do a lot of trimming, you will definitely want to buy a few of these at once to avoid shipping costs.

8. 0.080" 160-Foot String Trimmer Line

   
   
   
   Reliable Bulk Refill
   View Latest Price
   • Diameter0.080 inch
   • Length160 feet
   • CompatibilityUniversal
   • MaterialDurable nylon
   • Best forFrequent users
   • StandoutHigh capacity

   This 160-foot roll is the ultimate value for someone who uses their greenworks string trimmer 80v every single week. It lasts for months.

   It is aimed at the practical gardener who hates running out of line halfway through a job. Having 160 feet on hand provides incredible peace of mind.

   I found the nylon quality to be very high, resisting fraying even when hitting hard surfaces like driveways or stone borders.

   The trade-off is the manual winding process. Since it is a bulk roll, it takes a few minutes to wind properly, but the cost savings over time are significant.

What to Look for in Best Greenworks String Trimmer 80v

Battery Compatibility and Runtime

Always verify the amp-hour rating to ensure your battery provides enough runtime for your specific yard size.

Line Diameter and Compatibility

Using the correct 0.080-inch line prevents motor strain and ensures a clean cut on thick weeds.

Spool Loading Mechanism

Look for dual-line replacement spools that offer a simple, tool-free installation to minimize downtime.

Brushless Motor Efficiency

Prioritize brushless motor technology for increased torque and a longer lifespan compared to brushed alternatives.

Shaft Design and Ergonomics

Consider the straight shaft design for better reach under bushes and improved user comfort during extended use.

Frequently Asked Questions

Are all 80V batteries interchangeable?

Yes, Greenworks 80V batteries are designed to be interchangeable across the entire 80V product ecosystem. This allows you to swap power sources between your string trimmer, blower, and mower seamlessly.

How often should I replace the trimmer line?

You should replace the line whenever it becomes too short to feed properly or shows signs of fraying. Using high-quality replacement spools ensures consistent cutting performance.

Does the 80V trimmer handle thick brush?

The 80V platform provides gas-like power, making it highly effective for thick weeds and tall grass. It is significantly more capable than 40V or 20V models for heavy-duty tasks.

Can I use generic trimmer line?

While generic line may fit, using manufacturer-recommended spools ensures the line feeds correctly without jamming. Sticking to compatible components protects your trimmer's internal feed mechanism.

How do I maintain the trimmer motor?

Keep the cooling vents clear of grass clippings and debris after every use. Storing the tool in a dry, climate-controlled environment will also extend the life of the brushless motor.

Is the 80V trimmer heavy to operate?

The 80V models are balanced for ergonomics, but they are heavier than lower-voltage tools due to the battery size. Utilizing a shoulder strap can significantly reduce fatigue during longer trimming sessions.