Buying Guide
Our Guide to the Best Cordless String Trimmers With Batteries
Compared using published specifications, included components, compatibility, and practical trade-offs.
By Gardening Is Ezee Editors
8 min read3 products evaluated
Several string trimmers are sold bare tool, assuming an existing compatible battery, which can quietly inflate the real cost for a new buyer.
Gardening Is Ezee field notes
The Garden Fit Check
A quick way to connect the shortlist to the space, workload and ownership details that matter after the box arrives.
- Start with the job
- BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed leads this shortlist for most buyers wanting a complete, ready-to-use 2-in-1 kit. Use that fit as a reference point, then compare the alternatives against your own space and workload.
- Specs that separate the picks
- The first details to compare are 2-in-1 Trimmer and Edger, 12-Inch Cutting Swath, Automatic Line Feed. Confirm the exact model and included components before ordering.
- Trade-off to plan for
- 20V power may be limited for thick, overgrown weeds
The Practical Shortlist
A garden-first look at 3 options, organized around the job each one suits best.
Best Overall
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed
most buyers wanting a complete, ready-to-use 2-in-1 kit
Our take Check price for BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed (opens in a new tab)
Best Value Pick
Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger
buyers comparing capacity, compatibility, included components and storage needs
Our take Check price for Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger (opens in a new tab)
Best Automatic Feed Pick
VARSK 12 Inch Cordless Weed Wacker with Automatic Line Feed, 2 in 1 String Trimmer and Edger
buyers comparing capacity, compatibility, included components and storage needs
Our take Check price for VARSK 12 Inch Cordless Weed Wacker with Automatic Line Feed, 2 in 1 String Trimmer and Edger (opens in a new tab)
| Pick | Best for | Key spec | Price |
|---|---|---|---|
| most buyers wanting a complete, ready-to-use 2-in-1 kit | 2-in-1 Trimmer and Edger | Check price for BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed (opens in a new tab) |
| buyers comparing capacity, compatibility, included components and storage needs | 12-Inch Cutting Swath | Check price for Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger (opens in a new tab) |
| buyers comparing capacity, compatibility, included components and storage needs | Automatic Line Feed | Check price for VARSK 12 Inch Cordless Weed Wacker with Automatic Line Feed, 2 in 1 String Trimmer and Edger (opens in a new tab) |
Why Each Pick Made the Cut
Best Overall1 of 3
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed on Amazon (opens in a new tab)
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed is the better fit when most buyers wanting a complete, ready-to-use 2-in-1 kit.
Best for
- most buyers wanting a complete, ready-to-use 2-in-1 kit
Why it made the shortlist
The intended use case is most buyers wanting a complete, ready-to-use 2-in-1 kit. The documented setup centers on 2-in-1 Trimmer and Edger, auto Spool Feed, complete Kit.
What separates it on paper is genuinely complete kit, battery and charger included. Against the other 2 picks, the useful comparison starts with 2-in-1 Trimmer and Edger and auto Spool Feed. Those details show whether its configuration suits the job better than a neighboring recommendation.
Before committing, account for 20V power may be limited for thick, overgrown weeds. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- 2-in-1 Trimmer and Edger
- Auto Spool Feed
- Complete Kit
Pros
- Genuinely complete kit, battery and charger included
- Auto spool feed avoids manual line adjustment hassle
- Doubles as both a trimmer and an edger
Cons
- 20V power may be limited for thick, overgrown weeds
- No confirmed brushless motor on this specific model
Best Value Pick2 of 3
Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger on Amazon (opens in a new tab)
Greenworks 24V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger makes the shortlist because genuinely complete kit, battery and charger included.
Best for
- buyers comparing capacity, compatibility, included components and storage needs
Why it made the shortlist
This model is aimed at buyers comparing capacity, compatibility, included components and storage needs. The documented setup centers on 12-Inch Cutting Swath, 24V System, complete Kit.
The most useful documented advantage is genuinely complete kit, battery and charger included. Against the other 2 picks, the useful comparison starts with 12-Inch Cutting Swath and 24V System. Those details show whether its configuration suits the job better than a neighboring recommendation.
The main limitation to plan around is no 2-in-1 edger function like the Black+Decker pick. Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.
Key dimensions & specs
- 12-Inch Cutting Swath
- 24V System
- Complete Kit
Pros
- Genuinely complete kit, battery and charger included
- 24V system offers slightly more power than 20V options
- 12-inch cutting swath suits routine yard maintenance well
Cons
- No 2-in-1 edger function like the Black+Decker pick
- No confirmed brushless motor on this specific model
Best Automatic Feed Pick3 of 3
VARSK 12 Inch Cordless Weed Wacker with Automatic Line Feed, 2 in 1 String Trimmer and Edger on Amazon (opens in a new tab)
VARSK 12 Inch Cordless Weed Wacker with Automatic Line Feed, 2 in 1 String Trimmer and Edger is the better fit when buyers comparing capacity, compatibility, included components and storage needs.
Best for
- buyers comparing capacity, compatibility, included components and storage needs
Why it made the shortlist
The intended use case is buyers comparing capacity, compatibility, included components and storage needs. The documented setup centers on automatic Line Feed, 2-in-1 Design.
What separates it on paper is automatic line feed avoids manual line adjustment hassle. Against the other 2 picks, the useful comparison starts with automatic Line Feed and 2-in-1 Design. Those details show whether its configuration suits the job better than a neighboring recommendation.
Before committing, account for newer brand with a shorter track record. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- Automatic Line Feed
- 2-in-1 Design
- Compared using published specifications, included components, compatibility, and practical trade-offs.
Pros
- Automatic line feed avoids manual line adjustment hassle
- Doubles as both a trimmer and an edger
Cons
- Newer brand with a shorter track record
How We Built This Shortlist
Each pick was assessed across 3 criteria weighted for real-world use.
- Real, Current Listings
- We compared capacity, compatibility, included components, operating limits and warranty documentation.
- Complete Kit Verification
- We specifically confirmed each listing includes both a battery and charger rather than assuming bare-tool listings count as complete kits.
- Feature Comparison
- We compared 2-in-1 edger functionality and line feed mechanism across all three models.
What Matters Before You Choose a Cordless String Trimmer With Batteries (2026)
Key buying criteria so you get the right fit the first time.
Complete Kit vs. Bare Tool
Confirm capacity, dimensions, compatibility, included components, warranty coverage and storage requirements before choosing.
2-in-1 Trimmer and Edger Function
Two of these three models double as both a string trimmer and an edger, a genuine value feature beyond just trimming grass along a single function.
Decide whether edging capability matters to you before paying extra for a dedicated single-function trimmer instead.
Automatic vs. Manual Line Feed
Two of these three models specifically include automatic line feed, advancing the cutting line without manually bumping or adjusting it.
This is a genuine convenience feature worth checking for if you trim frequently and want to avoid manual line management.
Match a Cordless String Trimmer With Batteries (2026) to Your Garden or Yard
By Priority
| Priority | Recommended Pick |
|---|---|
| Established brand, 2-in-1 function | Black+Decker 20V |
| Higher voltage, single function | Greenworks 24V |
| Compared using published specifications, included components, compatibility, and practical trade-offs. | VARSK Automatic Feed |
By Budget
| Budget | Recommended Pick |
|---|---|
| Lowest cost | VARSK Automatic Feed |
| Mid-range value | Greenworks 24V |
| Established brand premium | Black+Decker 20V |
2-in-1 vs. Single Function: The Verdict
The right choice depends on whether edging capability matters to you.
- Choose a 2-in-1 model if
- You want both trimming and edging capability in one tool without buying two separate tools.
- Choose a single-function model if
- You already own a dedicated edger and just need a trimmer.
By Line Feed Mechanism
| Priority | Recommended Pick |
|---|---|
| Automatic line feed convenience | Black+Decker or VARSK |
| Manual feed is acceptable | Greenworks 24V |
For First-Time Buyers Specifically
- Look for
- A genuinely complete kit so you avoid a hidden separate battery cost after purchase.
- In this comparison
- All three models specifically include a battery and charger.
When to Spend More
- Spend more if
- You want an established brand's proven track record and warranty support.
- Save if
- A newer brand's complete kit with similar features meets your actual needs.
Before You Bring One Home
Why does it matter if a string trimmer includes a battery and charger?
Confirm the model number, dimensions, capacity, included components, compatibility, warranty coverage and storage requirements.
Is a 2-in-1 trimmer and edger worth it?
Yes, if you want both functions without buying two separate tools. A 2-in-1 design switches between trimming and edging modes, covering both routine yard tasks with one purchase.
What does automatic line feed mean on a string trimmer?
It advances the cutting line automatically as it wears down, without requiring you to manually bump or adjust it, a genuine convenience for frequent use.
Which complete kit string trimmer is the best value?
Confirm the model number, dimensions, capacity, included components, compatibility, warranty coverage and storage requirements.
Bottom Line
Best overall: BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed — best overall pick in this roundup. See the full verdicts above for every pick, with pros, cons and who each one suits.
Browse all cordless string trimmers with batteries (2026) on Amazon — Prime-eligible options with current pricing.