Buying Guide
Our Guide to the Best BLACK+DECKER Cordless String Trimmers
Compared using published specifications, included components, compatibility, and practical trade-offs.
By Gardening Is Ezee Editors
8 min read3 products evaluated
Black+Decker offers string trimmers across two voltage tiers, a widely available 20V MAX line and a higher-power 40V MAX line with telescoping and edging features. We compared three current genuine Black+Decker models across these tiers.
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, versatile 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, 13-Inch Swath, Adjustable Telescoping Pole. 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, versatile 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 Higher-Power Pick
Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger
larger properties needing more power and wider swath
Our take Check price for Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger (opens in a new tab)
Best Telescoping Pick
BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1
buyers wanting a customizable pole length for comfort
Our take Check price for BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 (opens in a new tab)
| Pick | Best for | Key spec | Price |
|---|---|---|---|
| most buyers wanting a complete, versatile 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) |
| larger properties needing more power and wider swath | 13-Inch Swath | Check price for Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger (opens in a new tab) |
| buyers wanting a customizable pole length for comfort | Adjustable Telescoping Pole | Check price for BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 (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, versatile 2-in-1 kit.
Best for
- most buyers wanting a complete, versatile 2-in-1 kit
Why it made the shortlist
The intended use case is most buyers wanting a complete, versatile 2-in-1 kit. The documented setup centers on 2-in-1 Trimmer and Edger, auto Spool Feed, 20V MAX System.
What separates it on paper is genuinely complete kit, battery and charger included. Its 20V MAX System specification sits at the lower end of the comparable range in this 3-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.
Before committing, account for 20V power may be limited for thick, overgrown weeds. 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
- 2-in-1 Trimmer and Edger
- Auto Spool Feed
- 20V MAX System
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 telescoping pole for adjustable length overall
Best Higher-Power Pick2 of 3
Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger on Amazon (opens in a new tab)
Choose Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger for wider 13-inch cutting swath than the 20V pick.
Best for
- larger properties needing more power and wider swath
Why it made the shortlist
Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger is positioned for larger properties needing more power and wider swath. The documented setup centers on 13-Inch Swath, 40V MAX System, 2-in-1 Function.
The feature doing most of the work here is wider 13-inch cutting swath than the 20V pick. Its 40V MAX System specification sits at the upper end of the comparable range in this 3-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.
The practical constraint here is 40V batteries aren't compatible with 20V Black+Decker tools. 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
- 13-Inch Swath
- 40V MAX System
- 2-in-1 Function
Pros
- Wider 13-inch cutting swath than the 20V pick
- More sustained 40V power for thicker growth
- Genuinely complete kit, battery and charger included
Cons
- 40V batteries aren't compatible with 20V Black+Decker tools
Best Telescoping Pick3 of 3
BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 on Amazon (opens in a new tab)
Choose BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 for adjustable telescoping pole customizes length for comfort.
Best for
- buyers wanting a customizable pole length for comfort
Why it made the shortlist
BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 is positioned for buyers wanting a customizable pole length for comfort. The documented setup centers on adjustable Telescoping Pole, 40V MAX System, 2-in-1 Function.
The feature doing most of the work here is adjustable telescoping pole customizes length for comfort. Its 40V MAX System specification sits at the upper end of the comparable range in this 3-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.
The practical constraint here is telescoping joint adds a potential wear point over time. 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
- Adjustable Telescoping Pole
- 40V MAX System
- 2-in-1 Function
Pros
- Adjustable telescoping pole customizes length for comfort
- More sustained 40V power for thicker growth
- Doubles as both a trimmer and an edger
Cons
- Telescoping joint adds a potential wear point over time
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.
- Voltage Tier Verification
- We confirmed each model's specific voltage tier and cross-checked that batteries are not interchangeable between the 20V and 40V platforms.
- Feature Comparison
- We compared 2-in-1 edger functionality and telescoping pole adjustability across all three models.
What Matters Before You Choose a BLACK+DECKER Cordless String Trimmers (2026)
Key buying criteria so you get the right fit the first time.
Voltage Tier Selection
Black+Decker's 20V and 40V string trimmer lines aren't cross-compatible, so choosing a tier means committing to that battery ecosystem for future tool purchases.
Match the tier to your actual yard size, since 20V is generally sufficient for routine residential maintenance while 40V suits larger properties or thicker growth.
2-in-1 Trimmer and Edger Function
All three models here double as both a string trimmer and an edger, a genuine value feature beyond just trimming grass along a single function.
This Black+Decker lineup consistently includes this feature, a meaningful advantage if you want both functions without buying separate tools.
Telescoping Pole Adjustability
One model here includes an adjustable telescoping pole, letting you customize the tool's length for your height and comfort during extended use.
This matters more if you're notably tall or short, where a fixed pole length might feel awkward.
Match a BLACK+DECKER Cordless String Trimmers (2026) to Your Garden or Yard
By Yard Size
| Yard Size | Recommended Pick |
|---|---|
| Standard residential | 20V MAX 2-in-1 |
| Larger property, thicker growth | 40V MAX Standard |
| Need customizable pole length | 40V MAX Telescoping |
By Budget
| Budget | Recommended Pick |
|---|---|
| Lowest cost complete kit | 20V MAX 2-in-1 |
| Higher power, standard pole | 40V MAX Standard |
| Higher power, adjustable pole | 40V MAX Telescoping |
20V vs. 40V: The Verdict
The right tier depends on your actual yard size and growth density.
- Choose 20V if
- Standard residential yard maintenance is your primary use case.
- Choose 40V if
- Your property or growth density genuinely calls for more sustained power.
By Pole Adjustability
| Priority | Recommended Pick |
|---|---|
| Adjustable telescoping pole | 40V MAX Telescoping |
| Fixed pole is fine | 20V MAX or standard 40V MAX |
For Existing Black+Decker Battery Owners Specifically
- Look for
- Whether you already own 20V or 40V Black+Decker batteries before choosing a trimmer tier.
- In this comparison
- Each tier's battery is shared only within that same voltage platform.
When to Spend More
- Spend more if
- You want more sustained power and a customizable telescoping pole on 40V.
- Save if
- Standard residential yard maintenance on 20V meets your needs.
Before You Bring One Home
What voltage tiers does Black+Decker offer for string trimmers?
Black+Decker currently offers 20V MAX and 40V MAX tiers for string trimmers, with the 40V line delivering more sustained power and a wider cutting swath.
Are Black+Decker 20V and 40V batteries interchangeable?
No, the two voltage platforms use different, non-interchangeable batteries, so choosing a tier means committing to that ecosystem for future tool purchases.
Do all Black+Decker string trimmers double as edgers?
Yes, all three models compared here include 2-in-1 trimmer and edger functionality, a consistent feature across Black+Decker's current string trimmer lineup.
Is a telescoping pole worth the extra cost?
It's worth it if you're notably tall or short and want to customize the tool's length for comfortable extended use, though it's not essential for most buyers.
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 black+decker cordless string trimmers (2026) on Amazon — Prime-eligible options with current pricing.