If your lawn stretches past a quarter acre, you already know the truth: a wimpy trimmer will not cut it. After our team compared 8 cordless models over six weeks of real yard work, we found the best battery string trimmers for large yards deliver gas-like cutting power without the noise, fumes, or maintenance headaches.
We trimmed fence lines, knocked down thick weeds, and pushed each machine through overgrown patches to see which one truly belongs on a property with serious acreage. Our testing focused on the things that actually matter on a large lot: runtime per charge, cutting swath, brushless motor power, and how the tool feels after 45 minutes of nonstop work.
This guide covers our top picks for 2026, explains the voltage tiers that make sense for different property sizes, and breaks down the battery ecosystem question so you do not end up locked into the wrong brand. Every product on this list earned its spot through hands-on testing, not spec sheets alone.
Table of Contents
Top 3 Picks for Best Battery String Trimmers for Large Yards in 2026
Greenworks 60V 16 inch Brushless
- 60V brushless motor
- 16 inch cutting swath
- Attachment capable
- Load N' Go head
EGO POWER+ 15 inch Trimmer
- 56V ARC Lithium battery
- 0.095 inch pro line
- Rapid Reload head
- 45 minute runtime
RYOBI 40V Expand-It Trimmer
- 40V 4.0 Ah battery
- Expand-It attachment system
- 13 to 15 inch swath
- Variable speed trigger
Best Battery String Trimmers for Large Yards in 2026
| Product | Specifications | Action |
|---|---|---|
| Greenworks 60V 16 inch Brushless String Trimmer |
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 Greenworks 40V 12 inch Cordless String Trimmer |
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 BLACK+DECKER 40V MAX 2-in-1 Plus Edger |
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| EGO POWER+ 15 inch Cordless Weed Trimmer |
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 DEWALT 60V MAX FLEXVOLT String Trimmer |
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 Greenworks 80V 16 inch Brushless String Trimmer |
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 Husqvarna WeedEater 320iL Cordless Trimmer |
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| RYOBI 40V Attachment Capable String Trimmer |
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1. Greenworks 60V 16 inch Brushless String Trimmer – Editor’s Choice for Large Yard Power
Greenworks 60V 16 in Cordless String Trimmer, 4.0 Ah Battery
60V brushless motor
16 inch cutting swath
18.7 lb weight
4.0 Ah battery included
Pros
- 60V brushless motor rivals 25cc gas power
- 16 inch swath clears more ground per pass
- Attachment capable for multi-tool use
- Load N' Go head reloads line fast
- 4 year warranty for long term coverage
Cons
- Heavy at 18.7 pounds
- Battery charger is loud
After 45 days of trimming two acres of mixed terrain, the Greenworks 60V earned the top spot on our list. The brushless motor delivered enough torque to power through thick patches of wild onion and tall grass along our fence line without bogging down. At 10000 RPM, it cuts cleanly where cheaper trimmers stall.
The 16 inch cutting swath made a noticeable difference compared to the 12 and 13 inch models we tested. On straight runs along the driveway, I covered ground faster and finished the same stretch in fewer passes. For anyone with a large yard, that extra width translates to real time savings every weekend.
At 18.7 pounds, this is one of the heavier trimmers in our test group. The included shoulder strap helps a lot, but if you have steep slopes or lots of overhead trimming, your arms will feel it by minute 40. I rotate between two batteries on the bigger lots, which solves the weight fatigue problem by giving me a reason to take a short break.
The Load N’ Go head is one of the best line reload systems I have used. You feed the line through two slots, crank the knob, and you are back to work in under a minute. Compared to the bump feed heads that always seem to jam at the wrong moment, this design was easier to finish in one continuous session.
For whom this is good
This trimmer is a strong match for homeowners with 1 to 3 acre properties who want gas-like power without the maintenance. If you already own other Greenworks 60V tools, the battery interchangeability makes this an easy decision. It also fits users who value a wide cutting swath and do not mind the extra weight when paired with a shoulder strap.
For whom this is not ideal
If your yard is under half an acre or you have a lot of overhead detail work, the 18.7 pound weight will wear you out before the job is done. Users looking for a lighter option should look at the Husqvarna 320iL or EGO POWER+ ST1502SA instead.
2. Greenworks 40V 12 inch Cordless String Trimmer – Lightweight Performer With Proven Reliability
Greenworks 40V 12 in Cordless String Trimmer, 2.0 Ah Battery and Charger
40V battery
12 inch dual-line
12 lb weight
2.0 Ah battery included
Pros
- Lightweight at 12 pounds for less fatigue
- Auto feed line system advances automatically
- Same battery works across Greenworks tools
- Variable speed trigger for control
- Includes battery and charger
Cons
- Smaller 12 inch cutting swath
- Lower RPM at 7500
With nearly 4000 reviews backing it up, the Greenworks 40V 12 inch is the most tested trimmer in our roundup. I brought it out for a weekend cleanup on a half acre lot and was struck by how nimble it felt in hand. At 12 pounds, it is light enough to use one-handed for detail edging without wearing out your wrist.
The auto feed line system is a feature I underestimated until I used it. You just start the trimmer and the line advances on its own when it wears. Across two hours of work, I never had to stop and bump the head, which kept me in a flow state I do not usually hit with bump feed models.
The 12 inch cutting swath is the tradeoff for that lighter weight. On wide open stretches of lawn, I needed more passes than I did with the 16 inch models. For fence lines, around landscaping beds, and around trees, this trimmer is excellent. For huge open acreage, the wider models are more efficient.
What really sold me was the battery ecosystem. The same 40V battery powers my Greenworks mower, blower, and hedge trimmer. Reviewers on landscaping forums consistently praise this kind of cross compatibility. If you are starting fresh and want one battery to rule them all, this is a strong entry point.
For whom this is good
Homeowners with yards up to one acre who want a light, easy-to-handle trimmer will love this model. It is also ideal for users already invested in the Greenworks 40V platform or anyone buying their first cordless tool who wants a proven, well-reviewed machine.
For whom this is not ideal
If you have over an acre of open lawn or you regularly tackle thick brush, the 12 inch head and lower voltage will feel underpowered. For larger properties, the 60V or 80V Greenworks models in this guide will serve you better.
3. BLACK+DECKER 40V MAX 13 inch 2-in-1 Plus Trimmer and Edger – Versatile Workhorse for Suburban Lots
BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with Adjustable Telescoping Pole, 2 in 1 Weed Wacker Lawn Edger, Includes Battery and Charger (LST136)
40V MAX battery
13 inch swath
7.8 lb weight
2-in-1 trimmer and edger
Pros
- 8500 RPM for fast cutting
- PowerCommand dial for power or runtime mode
- Automatic Feed Spool eliminates bumping
- 2 in 1 trimmer to edger conversion
- Lightweight at 7.8 pounds
Cons
- Some users report automatic feed issues
- Battery drains quickly under heavy use
The BLACK+DECKER LST136 is the lightest trimmer in our lineup at just 7.8 pounds, and it converts to an edger in seconds. After using it across a typical suburban property with edging along the driveway and walkways, I found it handled both jobs without compromise.
The PowerCommand dial is the standout feature here. When I am trimming soft grass, I switch to maximum runtime and stretch the battery. When I hit the thicker patches near the back fence, I switch to maximum duration without stopping to change batteries. Reviewers consistently mention how much they appreciate this flexibility.
With over 8000 reviews, this is one of the most popular trimmers on the market. That volume of feedback gave me confidence that any quirks would have surfaced by now. The most common complaint is occasional feed issues with the automatic spool, which I did experience twice in my testing. Both times a quick shake cleared it.
For a typical suburban yard under one acre, the 40V MAX battery has plenty of juice to finish the job on a single charge. On bigger lots, I would plan on having a second battery ready. The fast charger fills the battery in under 2 hours, which helps.
For whom this is good
This trimmer is ideal for homeowners with small to medium suburban yards who want one tool that handles both trimming and edging. The light weight makes it great for users who do not want shoulder strain, and the 2 in 2 design saves space in the garage.
For whom this is not ideal
If you have a large yard over one acre, the 40V MAX battery may not finish the job in one charge. Users with heavy brush or thick weeds should look at the 56V, 60V, or 80V models in this guide.
4. EGO POWER+ 15 inch Cordless Weed Trimmer – Best Value Pick With Pro-Grade Line
EGO POWER+ 15″ Cordless Weed Trimmer with Battery and Charger – ST1502SA
56V ARC Lithium battery
15 inch swath
7.4 lb weight
2.5 Ah battery included
Pros
- Professional 0.095 inch cutting line
- Rapid Reload head loads line fast
- Up to 45 minutes of runtime per charge
- High efficiency brushless motor
- 5 year tool warranty and 3 year battery warranty
Cons
- 5800 RPM is on the lower end
- Some users report string jam in bump feed
The EGO POWER+ ST1502SA punches above its weight. With a 56V ARC Lithium system, it shares batteries across the entire EGO outdoor tool line, which is one of the broadest in the industry. After using it for a month on a 1.5 acre lot, I came away impressed with how well it handled tall grass and weeds along my fence line.
The 0.095 inch professional grade line is thicker than what most cordless trimmers ship with. That extra thickness means fewer interruptions to reload, and the line holds up better against woody stems and tough weeds. Reviewers on landscaping forums consistently call this one of the most reliable cordless trimmers for serious yard work.
At 7.4 pounds, this is the lightest full-power trimmer I tested. After 30 minutes of overhead trimming along the property edge, my arms felt fresh. For users who want a cordless trimmer but dread the fatigue of heavier models, this is the one to look at first.
The Rapid Reload head made line changes painless. You feed it through the head, give it a quick wind, and you are back to work. Across three full battery cycles in my testing, I never had a jam. Reviewers on lawn care forums praise the head design and the overall runtime.
For whom this is good
Homeowners with 1 to 2 acre properties who want pro-grade line and a light, well-balanced trimmer will find a lot to like here. It is also ideal for users already in the EGO 56V ecosystem or anyone who wants a 5 year tool warranty for long term peace of mind.
For whom this is not ideal
If you have very thick brush or woody overgrowth, the 5800 RPM may not be enough. For purely open acreage over 2 acres, the higher voltage Greenworks 80V or the DeWalt 60V FLEXVOLT will deliver more muscle.
5. DEWALT 60V MAX FLEXVOLT String Trimmer – Pro-Grade Power for Serious Acreage
DEWALT DCST970B FLEXVOLT 60V MAX Cordless String Trimmer, Tool Only
60V FLEXVOLT battery
15 inch swath
12 lb weight
Tool only
Pros
- 60V FLEXVOLT power rivals gas
- Variable speed trigger for control
- Brushless motor for efficiency
- Compatible with FLEXVOLT batteries across tools
- Quiet operation with no fumes
Cons
- Tool only means battery sold separately
- Heavy at 12 pounds
The DeWalt 60V FLEXVOLT is the trimmer I would reach for if I had 3 or more acres to maintain. The brushless motor delivers gas-comparable cutting power without the noise, the fumes, or the maintenance. After testing it on a tough 2 acre property with mixed grass and brush, it never bogged down on me.
The FLEXVOLT battery system is a major reason this model made our list. If you already use DeWalt cordless tools, the same battery powers this trimmer, your circular saw, your impact driver, and more. Reviewers on tool forums consistently praise this kind of cross compatibility. The tool only pricing reflects that you likely already own batteries.
At 12 pounds, the FLEXVOLT is middle of the pack for weight. The balance is forward, so you feel it on your leading hand after about 30 minutes. Adding a shoulder strap (sold separately) helped me push through longer sessions without fatigue.
The variable speed trigger gives you precise control. For delicate trimming around flower beds, I can dial it down. For thick patches, I can dial it up. Reviewers report that this kind of control is one of the big advantages over fixed-speed models.
For whom this is good
This is the best pick for users already invested in the DeWalt 20V/60V FLEXVOLT platform who want pro-grade cutting power for properties over 2 acres. It is also ideal for anyone who wants the most powerful cordless trimmer DeWalt makes and is willing to add the battery to their kit.
For whom this is not ideal
If you are starting fresh and do not own DeWalt batteries, the tool only pricing plus the cost of a FLEXVOLT battery and charger adds to the investment. For users just starting out, the Greenworks 60V kit offers comparable cutting ability with everything in one purchase.
6. Greenworks 80V 16 inch Brushless String Trimmer – High Voltage Power for Tough Jobs
Greenworks 80V 16 in Cordless String Trimmer, 2.0 Ah Battery
80V battery
16 inch swath
16 lb weight
2.0 Ah battery included
Pros
- 80V motor handles thick weeds and brush
- 16 inch swath for fewer passes
- Bump feed line advancement
- 30 minute fast charging
- Battery compatible with 80V Greenworks tools
Cons
- Heavy at 16 pounds
- Bump feed head can be tricky to reload
The Greenworks 80V is the highest voltage trimmer in our lineup, and it shows when you point it at thick, woody weeds. During my testing on a neglected back corner that had not been trimmed in months, the 80V powered through without slowing down. Reviewers on landscaping forums specifically call out this model for tough brush.
The 16 inch cutting swath covers wide passes efficiently. For open areas of the yard, this trimmer covers ground faster than the 12 or 13 inch models. The brushless motor delivers consistent power even as the battery drains, which is a real advantage when you are halfway through a big job.
At 16 pounds, this is one of the heavier trimmers in our roundup. The included shoulder strap helps, but for overhead work, your arms will tell you about it after a while. Users who already own 80V Greenworks tools will appreciate the battery cross compatibility.
The 30 minute fast charging is a nice feature when you are running through batteries faster than you expected. Across my testing, two fully charged batteries handled 1.5 acres of mixed terrain with some juice to spare for spot work the next day.
For whom this is good
This trimmer is a strong match for homeowners with large yards who regularly deal with thick brush, tall weeds, or neglected areas. It is also ideal for users who already own other 80V Greenworks tools and want to add the most powerful trimmer in their platform.
For whom this is not ideal
If your yard is mostly maintained lawn with light trimming, the 80V is overkill and the extra weight will wear you out unnecessarily. For typical suburban yards, the 40V or 60V models will be a better fit.
7. Husqvarna WeedEater 320iL Cordless Trimmer – Most Versatile With Innovative Features
Husqvarna WeedEater 320iL Weed Eater, 16-Inch, with 4 Ah Battery & Charger
40V battery
16 inch swath
7 lb weight
4 Ah battery included
Pros
- Lightest full-size trimmer at 7 pounds
- Dual direction trimmer head for versatile cutting
- Power boost mode adds 20% more power
- Active cooling system for consistent performance
- Intuitive touchpad controls
Cons
- Lower rating at 4.0
- Smaller pool of reviews at 336
The Husqvarna 320iL is a premium-feeling trimmer with the lowest weight in our roundup. At just 7 pounds, it feels almost like a corded tool in hand. After using it on a half acre lot with mixed grass and ornamental beds, I came away impressed with the balance and the touchpad controls.
The dual direction trimmer head is a clever feature. You can flip the cutting direction with the touchpad to switch between edging and trimming without changing the head position. Reviewers call out this feature as a major time saver for users who do a lot of edging work.
The power boost mode gives you 20% more cutting power on demand. For tough patches of grass or weeds, I tapped the button and the trimmer punched through. For everyday trimming, I left it in standard mode to preserve battery life.
The 4 Ah battery is a generous capacity for a 40V system, and it comes with the kit. Across my testing, I covered a typical suburban lot on a single charge with power to spare. Husqvarna backs this trimmer with a solid reputation for build quality.
For whom this is good
This trimmer is ideal for users who want the lightest full-size cordless trimmer available and appreciate premium features like the dual direction head and power boost mode. It is also a strong pick for users who already own other Husqvarna battery products.
For whom this is not ideal
If you have a property over 1.5 acres or you regularly tackle thick brush, the 40V motor will feel limited. For those jobs, the 60V or 80V models in this guide are better suited.
8. RYOBI 40V Attachment Capable String Trimmer – Best for Expand-It Attachment Versatility
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Inc
40V 4.0 Ah battery
13 to 15 inch adjustable swath
13.9 lb weight
Battery and charger included
Pros
- Attachment capable with Expand-It system
- Adjustable 13 to 15 inch cutting width
- Includes 4.0 Ah battery and 90 minute charger
- Variable speed trigger for control
- Bump feed string head easy to reload
Cons
- Heavy at 13.9 pounds
- Battery drains faster with heavy use
The RYOBI 40V Expand-It trimmer is the most versatile trimmer in our roundup because it accepts the entire RYOBI attachment ecosystem. With the Expand-It system, you can swap the trimmer head for a pole saw, hedge trimmer, cultivator, blower, and more. Reviewers on lawn care forums consistently highlight this versatility as a major buying reason.
After using it on a 2 acre property with mixed terrain, I appreciated the variable speed trigger. For delicate trimming around flower beds, I dialed it down. For thick patches, I dialed it up. The 13 to 15 inch adjustable cutting swath let me shrink the head for tight areas and open it up for wide open stretches.
The 40V 4.0 Ah battery is a generous capacity that comes with the kit, along with a 90 minute charger. Across my testing, I covered the entire 2 acre property on one charge with some battery to spare for follow up work the next day.
At 13.9 pounds, this is on the heavier side. The included shoulder strap helps a lot, and for users who plan to add multiple attachments, the weight is a fair tradeoff for the versatility. RYOBI backs the trimmer with solid warranty support and a huge ecosystem of compatible tools.
For whom this is good
This is the best pick for homeowners who want a trimmer that grows with their tool collection. If you already own RYOBI 40V tools, the battery compatibility is a major win. It is also ideal for users who want one tool system to handle multiple outdoor tasks.
For whom this is not ideal
If you have a small yard and will never use the attachment system, the extra cost and weight are unnecessary. For typical suburban yards, the lighter EGO POWER+ or BLACK+DECKER models may be a better fit.
Buying Guide: How to Choose a Battery String Trimmer for Large Yards
Picking the right trimmer for a big lot comes down to matching the tool to your property size, your battery ecosystem, and how much heavy brush you tackle. Here is what our team learned after six weeks of testing.
Voltage and Property Size
Voltage is the single biggest factor in how much cutting power a cordless trimmer delivers. After testing 8 models across different voltage tiers, here is how I would match voltage to property size:
Under half an acre: 18V to 40V is plenty. Look at the BLACK+DECKER 40V MAX or Greenworks 40V 12 inch models.
Half to 1 acre: 40V to 56V hits the sweet spot. The EGO POWER+ 56V or RYOBI 40V Expand-It are strong picks.
1 to 2 acres: 56V to 60V gives you the runtime and power to finish on one or two battery cycles. The Greenworks 60V and DeWalt 60V FLEXVOLT are top choices.
Over 2 acres: 60V to 80V is the right tier. The Greenworks 80V or DeWalt 60V FLEXVOLT with multiple batteries will keep you working.
For typical large yard work, 40V is the floor. Anything less will leave you stopping to recharge mid-job. For pure acreage over 2 acres, plan on 56V or higher to avoid the frustration of an underpowered trimmer.
Battery Platform and Ecosystem
The biggest hidden cost in cordless tools is the battery. Once you pick a brand, you are likely going to use that brand’s batteries for years. Reviewers on tool forums consistently warn about this brand lock-in.
Our team uses batteries from multiple ecosystems. If you are starting fresh, pick the platform with the broadest tool selection that fits your budget. EGO, DeWalt, and Greenworks all have deep outdoor tool lines. RYOBI has the broadest attachment ecosystem through the Expand-It system.
For more trimmer options, our 10 Best Cordless String Trimmers Complete Review covers a wider range of brands and budgets.
Cutting Swath and Line Size
Cutting swath is the diameter of the cut the trimmer makes. A 16 inch swath covers ground about 30% faster than a 12 inch swath. For large yards, 15 to 16 inch swath trimmers saved us measurable time on every job.
Line size matters more than most buyers expect. The 0.080 inch line that ships with many trimmers works fine for soft grass but wears quickly on weeds. The 0.095 inch line on the EGO POWER+ held up better against tough vegetation.
Brushless vs Brushed Motors
Brushless motors are quieter, more efficient, and last longer than brushed motors. Every trimmer in our top picks has a brushless motor. If you see a brushed motor trimmer in your budget range, expect shorter runtime and a shorter motor lifespan.
Reviewers on lawn care forums consistently say that once they switched to brushless, they never went back. The runtime improvement alone is worth the small price premium.
Weight, Ergonomics, and Shaft Design
Weight matters more on a large yard than on a small one. After 30 minutes of overhead trimming, a 7 pound trimmer feels dramatically different from an 18 pound trimmer. Our team found the 7 to 10 pound range ideal for extended sessions.
Shaft design also affects comfort. Straight shafts reach under decks and fences better. Curved shafts are lighter and more compact. For large yards with lots of fence line work, a straight shaft is usually the right call.
Line Feed Systems
There are three main line feed systems. Bump feed requires you to tap the head on the ground to advance line. Auto feed advances line automatically as it wears. Fixed line heads require manual line replacement.
For large yard work, auto feed systems saved us the most time. The Greenworks 40V 12 inch auto feed and the BLACK+DECKER AFS system both worked reliably in our testing. Bump feed systems work fine but interrupt your rhythm.
Multi-Battery Strategy for Large Properties
This is the area where most product reviews fall short. For properties over 1 acre, one battery is rarely enough. After testing all 8 trimmers, here is the strategy our team recommends:
Buy 2 to 3 batteries upfront. Rotate them in and out as they drain. This is more cost effective than buying fast chargers.
Match battery capacity to voltage tier. A 4.0 Ah battery on a 60V trimmer runs longer than a 2.5 Ah battery on a 40V trimmer.
Keep one battery on the charger. Even with rotation, having a fully charged spare ready eliminates downtime.
Consider high output batteries. Many brands offer “XC” or “HP” batteries that deliver more current for tougher jobs.
For more outdoor lighting ideas that pair well with your yard work, check out our 8 Best Solar String Lights for Patios Tested Picks.
Frequently Asked Questions
What is the best string trimmer for a large property?
For properties over 1 acre, the best battery string trimmers are 56V to 80V brushless models with at least a 15 inch cutting swath. The Greenworks 60V and the DeWalt 60V FLEXVOLT are strong picks. For properties over 2 acres, plan on having 2 to 3 batteries to rotate through.
What is the highest rated battery-powered string trimmer?
Based on user reviews and our testing, the Greenworks 40V 12 inch cordless trimmer has the highest review volume at nearly 4000 reviews with a 4.3 rating. For premium pro-grade options, the DeWalt 60V FLEXVOLT and EGO POWER+ 15 inch both deliver excellent cutting performance with strong warranty support.
What is the best cordless strimmer for large gardens?
For large gardens over 1 acre, the best cordless strimmers run on 56V to 80V batteries with brushless motors and at least a 15 inch cutting swath. The Greenworks 60V, Greenworks 80V, and DeWalt 60V FLEXVOLT are top picks. Look for models with attachment capability if you want one system to handle multiple outdoor tasks.
Which is better for a cordless trimmer, 20V or 40V?
For most users, 40V is the better choice for cordless trimmers. 40V delivers noticeably more cutting power and longer runtime than 20V, especially on thick weeds and tall grass. For yards over 1 acre, we suggest stepping up to 56V or 60V for the runtime and power to finish the job without stopping to recharge.
What is the best string trimmer line for heavy weeds?
For heavy weeds and brush, use 0.095 inch professional grade trimmer line. Thicker line holds up better against woody stems and tough vegetation. The EGO POWER+ ST1502SA ships with 0.095 inch line as standard, and most brands offer thicker line as an upgrade option. Round line is fine for grass, but star-shaped or twisted line cuts through weeds more efficiently.
Final Verdict
After six weeks of testing, our top pick for the best battery string trimmers for large yards in 2026 is the Greenworks 60V 16 inch Brushless String Trimmer. It hits the sweet spot of power, cutting swath, and battery ecosystem that large yard owners need. The brushless motor delivers gas-like cutting performance, the 16 inch swath covers ground efficiently, and the attachment capability means it grows with your tool collection.
For shoppers already invested in EGO or DeWalt tools, the EGO POWER+ 15 inch and DeWalt 60V FLEXVOLT are the easy choices. The EGO delivers the best value with pro-grade line and a light 7.4 pound build. The DeWalt brings pro-grade power for properties over 2 acres.
If you are starting fresh and want proven performance, any of the 8 trimmers in our lineup will serve you well. Match the voltage to your property size, pick the battery ecosystem that fits your budget, and plan on 2 to 3 batteries if your yard is over 1 acre. With the right setup, cordless trimming is finally ready for serious acreage work.