Greenworks mower battery charger. Greenworks electric tool Christmas in July…

Have a Ryobi Battery That Won’t Charge? You Can Fix That.

Lithium ion batteries are a wondrous invention that are lightweight and long lasting. But it’s infuriating when the battery won’t recharge. You stick the battery in the charger and. nothing. Guess what? You can fix these batteries that appear to be completely dead. Read on.

This post is NOT sponsored by Ryobi. They do not approve of or endorse this method for fixing a Ryobi battery. AT all.

One of two things are going to happen as you read this post. You will either unfollow me due to my pathological boringness or. you will propose marriage. So get ready to act accordingly.

If you have any sort of cordless power tool, but especially one powered by a Ryobi 18V battery, you have no doubt encountered the dreaded flashing red charger light.

And if you haven’t. you will.

It inevitably goes like this. you run to the basement to grab your cordless drill because after 10 years of thinking about it, you’re finally going to build that 4 level, Tudor style treehouse with kitchenette.

Or you’re going to hang a picture.

Either way you put your battery in the charger and all you get is a flashing red light, which according to the label on the charger means your battery is defective. It isn’t just dead. It’s defective.

I’m here to tell you you it isn’t. You probably left it in the charger too long which drains the battery.

Your battery is fine. It just needs a little boost.

You Can Fix a Rechargeable Battery That Won’t Take a Charge.

You heard me right. You do NOT have to buy a new 50 battery. You do not have to call the company and swear at them because this stupid defective battery is only 2 weeks old. (although by all means feel free to do so) You do not have to wait until they ship you a replacement battery to finish your project. You can get that battery up and working in about 5 minutes.

NOTE: First try pulse charging.

Pulse charge your battery by plugging and unplugging your charger (with the battery in it) for 10 seconds. Try this a few times. If it doesn’t correct the problem, continue on with this tutorial.

How to Fix an 18V Battery

What You Need

• A multimeter. (this is actually optional but helpful. if you don’t have one don’t worry, you can still fix your battery)

Note: If you aren’t used to doing this sort of thing, or using things like a multimeter this is going to seem crazy and hard and way out of your DIY league. It isn’t.

Step 1. Cut the end off of your AC adapter. That’s right. Just cut it off. It’s for a 10 year old cell phone, you’re never going to use it again anyway. It’s frankly kind of weird that you saved it to begin with.

Step 2. Separate and strip off 1 of each wire. You have just made booster cables! Good for you.

Black wire = negative Striped or solid white wire = positive

IT IS VERY IMPORTANT TO NOT MIX THE TWO UP.

Step 3. Remove the screws holding the battery together.

For Ryobi batteries it’s a star shaped screw head like the one below.

A few years ago I bought a kit of small screwdriver heads from Amazon that has every small, weird, head you’d ever need.

There’s a hidden screw under a piece of plastic. You need to pry the plastic off to get at the screw underneath. I used a very thin screwdriver to pry it off.

Step 4. Pull the top off of the battery case.

Step 5. Remove the 2 plastic side pieces. They’re the things you press in to remove your battery from your drill.

Step 6. Lift the battery pack out.

Step 7. Set the Multimeter to read volts. For testing an 18 volt battery choose the 20 volts setting. This will give you the most accurate reading. (If you don’t have a multimeter skip to Step 9 and hope for the best)

Volts are symbolized by a V with one or two straight lines over it on a multimeter so it’s that section of the multimeter that you use. The section under the V with the straight line(s). Not the squiggly line. The straight line.

Step 8. Touching the red probe to the positive (red) terminal and the black probe to the negative (black) terminal, read the voltage shown on the multimeter. In my case the battery was carrying a charge of 0.06 volts. Which is almost nothing, but not completely nothing.

Step 9. Plug your AC adapter in and using the wires, boost your dead battery. Just touch the black wire to the negative terminal (the one with the black wire going to it) and the white wire (or striped wire) to the positive terminal (the one with the red wire going to it). Do this on and off for approximately a minute.

Apparently lithium ion batteries should be pulse charged. Which means you hold your wires down for 15 seconds or so, then release them. Then hold them down again. Over and over.

DOUBLE CHECK THAT YOU ARE TOUCHING POSITIVE TO POSITIVE AND NEGATIVE TO NEGATIVE.

Step 10. Test your the voltage on your battery pack again. It should be higher than it was before boosting. (Again, if you don’t have a multimeter don’t worry about this. you’ll just have to press on without one)

Mine went from 0.06 volts to 7.58 volts after a minute long boosting session.

Step 11. Put the plastic cover back on the battery pack (just the part that goes into the charger) and set your battery on the charger to see if it will take a charge.

If you still only get a red flashing light and the battery won’t charge, boost the battery some more. I find the battery charger will recognize that the battery is good again when you boost it to between 10 and 14 volts.

Just keep repeating the pulse boosting and testing the battery until it will finally be recognized by the charger and you get the green light.

To those of you who found this subject matter to be on par with spending 3 hours in a waiting room, sorry ’bout that.

For the rest of you? I know exactly how you feel. I felt the same way. Let me know exactly how elated you were after you brought your first battery back to life in the Комментарии и мнения владельцев section.

Here’s a 3 minute tutorial video showing me as I fix my own battery.

How to Fix a Ryobi 18v Rechargeable Battery

You have an almost brand new Ryobi battery that the charger won’t recognize and won’t charge. Here’s how to fix that.

NOTE: Before doing all this, first try to pulse charge your battery by plugging and unplugging your charger (with the battery in it) for 10 seconds. Try this a few times. If it doesn’t correct the problem, continue on with this tutorial.

Instructions

Cut the end off of your AC adapter. That’s right. Just cut it off. It’s for a 10 year old cell phone, you’re never going to use it again anyway. It’s frankly kind of weird that you saved it to begin with.

Remove the screws holding the battery together. There’s a hidden screw under a piece of plastic. You need to pry the plastic off to get at the screw underneath. I used a very thin screwdriver to pry it off.

Remove the 2 plastic side pieces. They’re the things you press in to remove your battery from your drill.

Set the Multimeter to read volts. For testing an 18 volt battery choose the 20 volts setting. This will give you the most accurate reading. (If you don’t have a multimeter skip to Step 9 and hope for the best)

Touching the red probe to the positive (red) terminal and the black probe to the negative (black) terminal, read the voltage shown on the multimeter. In my case the battery was carrying a charge of 0.06 volts. Which is almost nothing, but not completely nothing.

Plug your AC adapter in and using the wires, boost your dead battery. Just touch the black wire to the negative terminal (the one with the black wire going to it) and the white wire (or striped wire) to the positive terminal (the one with the red wire going to it). Do this on and off for approximately a minute. DOUBLE CHECK THAT YOU ARE TOUCHING POSITIVE TO POSITIVE AND NEGATIVE TO NEGATIVE.

Test your the voltage on your battery pack again. It should be higher than it was before boosting. IF IT IS NOT, THEN STOP. YOUR CELL COULD BE DAMAGED AND CONTINUING COULD BE DANGEROUS.

Put the plastic cover back on the battery pack (just the part that goes into the charger) and set your battery on the charger to see if it will take a charge. If you still only get a red flashing light and the battery won’t charge, boost the battery some more. I find the battery charger will recognize that the battery is good again when you boost it to between 10 and 14 volts.

Repeat the pulse boosting and testing the battery until it will finally be recognized by the charger and you get the green light.

Greenworks electric tool Christmas in July sale goes live in New Green deals, HomeKit faucets, more

A new Christmas in July savings event is going live today to mark down some of our favorite electric tools. Greenworks is now offering a collection of electric mowers, string trimmers, and other gear to get your lawn in order without having gas or oil in the picture. The savings today also continue over to the latest Eve Aqua HomeKit faucet for helping grow out a gorgeous lawn in the first place, with other deals landing on Jackery power stations and more. Just don’t forget about all of the other best e-bike discounts around. Head below for other New Green Deals that we’ve found today and of course Electrek’s best EV buying and leasing deals. Also, check out the new Electrek Tesla Shop for the best deals on Tesla accessories.

Christmas in July sale goes live on Greenworks tools

Greenworks is helping you save some green this week by launching a new Christmas in July sale. Offering some all-time lows across its collection of popular outdoor electric tools, shipping is free in orders over 100. While you’ll want to peruse all of the listings on this landing page first, our favorite price cut of the batch has the flagship Greenworks 60V 25-inch Electric Lawn Mower marked down to its lowest price of the year. Dropping from the usual 750 going rate, now you can score this electric tool for 599.99. That’s 150 off the going rate and the second-best price ever, coming within 1 of the all-time low. Centered around a 25-inch deck size and powered by a pair of 60V batteries, this self-propelled electric lawn mower from Greenworks is the perfect upgrade ahead of spring to finally ditch gas and oil from the equation. It can handle cutting the grass for 80 minutes on a single charge, covering 2/3 of an acre in the process. Each of the batteries are interchangeable with Greenworks’ other tools, and you’re also getting a charger in the box that rounds out the package.

Eve’s latest Aqua HomeKit faucet with Thread automates your lawn care

After first launching back last August, the new Eve Aqua Smart Water Controller is now on sale for one of the very first times. Courtesy of Amazon, the new Thread-enabled model is sitting at 119.96 shipped when clipping the on-page coupon. Down from the usual 150 price tag, you’re looking at 30 in savings as well as one of the first discounts of the year. It’s 10 under our previous mention, a match of the all-time low, and a well-timed discount with getting your lawn in order on the mind this summer. Packed into a refreshed design, Eve Aqua seeks to automate your sprinkler or outdoor faucet with the help of Siri this summer and beyond. On top of the usual HomeKit integration we see from the brand, there’s also Thread connectivity to complement its Bluetooth capacities. This time around the upgraded build has a brass faucet connector and magnetic valve to improve durability and protect against leaks, all while helping you automate your lawn maintenance system. Go dive into our launch coverage for a closer look at what to expect.

Jackery’s Explorer 1000 Pro has never sold of less

One of the first chances to save on one of Jackery’s latest portable power stations is now live. Courtesy of Amazon, the new Explorer 1000 Pro is now down to 769 shipped. Normally fetching 1,099, this 330 discount is fittingly a new all-time low. This is well below our previous 899 mention, bringing an extra 130 in savings into the mix. As one of the more recent additions to the Jackery power station stable, the new Explorer 1000 Pro takes a more balanced approach compared to some of the flagship offerings we’ve seen arrive over the past few months. Everything comes centered around a 1,002Wh internal battery which comes backed by a wide array of ports for powering all of the gear in your camping or tailgating setup. Three full sized AC outlets are perfect for more demanding appliances, but there’s also a pair of 100W USB-C ports alongside some other slots for topping off smartphones and other gadgets. All of that comes packed into a refreshed design that you can read all about in our launch coverage. e-bikes, a summer favorite!

• Aventure Step-Over e-bike: 1,500 (Reg. 2,000)
• Aventon Soltera 7-Speed Step-Through e-bike: 1,200 (Reg. 1,400)
• SWFT VOLT e-bike: 765 (Reg. 900)
• Huffy Transic Comfort e-bike: 631 (Reg. 660)
• Super73 R Electric Motorbike: 2,999 (Reg. 3,295)
• Electrek sponsor Pedego is offering up to 400 offits bikes using code Electrek
• Addmotor is offering an extra 200 off its new TRIKETAN M-330F foldable trike which will start at 2800. It also offers 100 off its popular Grandtan trike and Recumbant Trike

Other new Green Deals landing this week

The Independence Day savings this week are also continuing to a collection of other markdowns. To the same tune as the offers above, these all help you take a more energy-conscious approach to your routine.

• Jackery’s all-new Explorer 3000 Pro power station sees first discount to 2,599 (Save 200)
• Goal Zero’s Yeti 200X offers portable backup power on a budget at 200 low (Reg. 300)
• Add 6,000 lumens of solar-powered outdoor LED lighting to your patio for just 15 (Reg. 22)
• Rare deal drops Rachio’s 12-zone Wi-Fi Smart sprinkler controller to new low of 125

Stay up to date with the latest content by subscribing to Electrek on Google News. You’re reading Electrek— experts who break news about Tesla, electric vehicles, and green energy, day after day. Be sure to check out our homepage for all the latest news, and follow Electrek on and LinkedIn to stay in the loop. Don’t know where to start? Check out our YouTube channel for the latest reviews.

gardening tool manufacturers are opting for battery power over fuel or electric, and today’s string trimmers are a case in point. We tested these eco-friendly yard maintenance devices to help consumers make the right purchase for their property.

By Glenda Taylor and Mark Wolfe | Updated Jul 13, 2023 6:44 AM

We may earn revenue from the products available on this page and participate in affiliate programs.

Handy outdoor power tools make quick work of tackling overgrown weeds and grass, giving the yard a tidy look and trimming hedges and shrubs. We put battery-powered trimmers through their paces on several grass or weed types to see how well they ran and cut, ultimately arriving at this list of the best battery trimmers.

For ensuring a polished look to a lawn, the best string trimmer is a great investment. These yard-care tools spin a cutting head loaded with nylon string (instead of a fixed blade) to cleanly trim the grass at the edge of a lawn or mow down weedy areas. Though gas and electric models once dominated, new and improved battery-powered versions don’t require mixing fuel or storing gasoline like gas string trimmers do, nor are they limited by the length of an extension cord, like corded electric string trimmers are.

Some battery trimmers are better suited to different-size yards, users, and budgets. So we could help consumers make the right choice, we tested some of the most popular string trimmers to find out how they perform under real-world conditions. To qualify as a top pick, a string trimmer should be durable, powerful, and easy to operate. The string line should exit the reel easily with no need for the user to constantly remove the reel cover and untangle the line.

The following battery-powered string trimmers are at the top of their class. Anyone looking to invest in a trimmer is likely to find one here to fit their landscaping needs.

• BEST OVERALL:STIHL FSA 60 R 36V Battery Trimmer
• RUNNER-UP:Ego ST1511T Power 15-Inch Powerload String Trimmer
• BEST BANG FOR THE BUCK:BlackDecker LST300 LBXR2020-OPE 20V String Trimmer
• UPGRADE PICK:Makita XRU15PT1 36V LXT Brushless String Trimmer Kit
• BEST HEAVY-DUTY:DeWALT DCST972X1 60V MAX 17-Inch String Trimmer Kit
• BEST LIGHTWEIGHT:BlackDecker LSTE525 20V MAX String Trimmer/Edger
• BEST FOR LARGE YARDS:Echo DSRM-2100 eFORCE 56V 16-Inch Battery Trimmer
• BEST FOR SMALL YARDS:Worx WG163 20V Power Share GT 3.0 String Trimmer
• BEST DUAL DIRECTION:Husqvarna 320iL 40V Battery String Trimmer
• BEST TRIMMER/EDGER COMBO:Worx WG170 20V Power Share Revolution String Trimmer
• MOST VERSATILE:Greenworks Pro 80V 16-Inch Cordless String Trimmer

How We Tested the Best Battery Trimmers

To truly test these battery-powered string trimmers, we started by assembling the tools and charging the batteries. Most trimmers arrived with the batteries about 25 percent charged right out of the box, but a full charge allowed us to gauge runtime at full power. Although some of the trimmers offer lower power settings that could extend runtime, we found that the lower settings simply made them less capable when it came to coarse weeds, so we ran them at full power for testing.

We put each trimmer through its paces in a variety of real-world scenarios: “clean” lawn grass, weedy grass, and natural areas featuring coarse, weedy seedlings and vines. To earn a spot in our lineup, the lightweight 20-volt (V) trimmers had to deliver a clean, crisp cut in both clean and weedy grass sections. In addition to trimming the grass zones, we used the 36V, 56V, and 80V models to cut through woody, viny growth in natural areas. Along with cutting power, we tested for battery runtime, maneuverability, and operator comfort and determined the best battery trimmer by category.

Our Top Picks

These reviews describe the key features of each cordless string trimmer and how the models performed in our backyard tests.

STIHL FSA 60 R 36V Battery Trimmer

It makes sense that the STIHL FSA 60 R would be a top performer in this test group. It comes from a brand with a long history of industry-leading outdoor power equipment. This string trimmer measures just over 66 inches long, weighs less than 10 pounds with the battery installed, and works for about 25 minutes per charge. The 36V 3.9 amp hours (Ah) battery charges in a little more than 2 hours.

The tough polymer material used for the motor housing and debris shield help keep the weight down. A few other standout features include a variable-speed throttle trigger, trigger interlock, battery retainer latch, EasySpool cutting head, bump guard, and hang loop. The trigger interlock and battery retainer latch prevent accidental startup. The variable trigger and EasySpool head improve operating efficiency by saving battery life and minimizing the time it takes to reload, respectively. The bump guard protects sensitive surfaces during close trimming, and the hang loop offers a convenient way to store the tool when not in use.

This is a great all-around pick for quarter- to a half-acre yards. The relatively short runtime of the STIHL FSA 60 R belies a very capable trimmer. In our tests it easily and cleanly sliced through all kinds of grass and weeds, including tough tree saplings up to about ¼ inch thick. The shorter runtime actually mattered less because the trimmer cut so well, and we moved at a faster pace than with some of the other trimmers with longer runtimes.

The other thing we noted here was the amazing level of operating comfort. The trimmer was fairly lightweight to begin with, but the weight was so well balanced—with just enough weight forward of the front handle to keep the head near ground level—that using it required significantly less effort than what was required of some of the other trimmers that weighed about the same. Also, vibration was minimal, so after trimming we had plenty of energy to keep working.

Product Specs

• Weighs less than 10 pounds but easily powers through tough weeds
• 25-minute runtime per charge for about 5,000 linear feet of trimming
• Excellent balance to keep the head at ground level
• EasySpool head, bump guard, variable-speed throttle, and accidental start protection
• Smallish 13.8-inch cutting swath is on the small side for open spaces
• 2-hour recharge time for battery is longer than that of some competitors

Get the STIHL battery trimmer at Ace Hardware or Blain’s Farm Fleet.

Ego ST1511T Power 15-Inch Powerload String Trimmer

Ego Power has made a name for itself in the outdoor power-equipment category by building an affordable battery-powered tool line that competes favorably against old-fashioned 2-cycle gas-powered equipment. The ST1511T 15-inch string trimmer proved to be powerful, clean, and quiet in testing. The 56V 2.5Ah lithium-ion battery delivers up to 45 minutes of runtime, with a recharging time of just 50 minutes. The bump-feed trimmer head comes preloaded with 0.095-inch trimmer line for more cutting force and less noise. Taller users will appreciate the straight shaft design, and the unit weighs in at just over 10 pounds.

In our tests, the Ego trimmer showed ample power to cut through everything in its path, including overgrown, weedy grass; privet seedlings; and honeysuckle vines. Its well-balanced design, with the heavy battery in back offset by the long, straight shaft, made it comfortable to work with and more agile than others we tested. Our only caveat: For seasonal yard cleanup or maintaining larger landscapes, the 45-minute maximum runtime may not be quite enough.

Product Specs

• Auto-loading trimmer head reduces downtime while working
• Adjustable telescoping straight shaft provides a custom fit for different users
• Excellent power and runtime value at a moderate price point
• Heavier than some with less forward weight to keep head down
• Battery is bulkier than others, making the tool tiring to use over an extended period

Get the Ego Power battery trimmer at Amazon, Ace Hardware, or Lowe’s.

BlackDecker LST300 LBXR2020-OPE 20V String Trimmer

To give the yard a polished look without breaking the bank, consider the BlackDecker cordless string trimmer. It features a 12-inch cutting swath to cut down the corners and clean up the edges of small- to medium-size yards. An automatic feed spool means no more stopping to bump the tool when new string is needed. Two 20V lithium-ion batteries are included.

In our tests, this trimmer performed very well in weed-free grass and in weedy lawn areas. With a light weight of just 5.7 pounds, this trimmer is easy to handle without causing arm and shoulder fatigue. The short, straight shaft design is most comfortable for users under 5 feet 9 inches tall. We also liked that with a quick adjustment to the head, the trimmer becomes an edger to neaten up the grass along sidewalks and driveways. In all, we found this affordable tool a solid pick for small obstacle-free landscapes.

Product Specs

• Pack includes 2 batteries for more runtime, less downtime
• Automatic feed spool
• Money- and space-saving design that both trims and edges
• Battery recharges in just 45 minutes
• Best for grass only; struggles with coarse, woody weeds
• Wide debris guard doesn’t fit well into tight spaces

Get the BlackDecker battery string trimmer at Amazon (with extra battery) or The Home Depot.

Makita XRU15PT1 36V LXT Brushless String Trimmer Kit

The Makita XRU15PT1 string trimmer is a premium option to keep the lawn and garden under control. It can handle large yards with enough power to tackle dense weed growth. This cordless string trimmer comes with four 18V 5.0Ah batteries so you’ll never run out of power. Shoppers can purchase this model as a kit that includes a dual battery charger and two sets of batteries, or as a “tool only” for those who already have items from the Makita 18V tool platform.

With a long, straight shaft and high-power cutting head, this 10.4-pound trimmer feels like a pro-quality tool. It was well balanced and articulate while trimming around shrubs and between obstacles. It had plenty of power to cut through tough vegetation. In our tests, it made nice clean cuts and crisp edges in the grassy areas and tore through weedy privet seedlings and honeysuckle vines without hesitation. It’s an excellent candidate to replace gas equipment for medium to large landscapes, though the price may be high for budget-minded shoppers.

Product Specs

• Runtime is longer than charge time for ready-to-go fresh batteries
• Includes a second set of batteries for extended work
• Gas-like power and performance for tough trimming jobs
• Expensive trimmer due to the high cost of batteries
• Small debris guard allows some material close to operator
• Stiff bump head required a hard strike to let out line

Get the Makita battery trimmer at Amazon or Mowers Direct.

DeWALT DCST972X1 60V MAX 17-Inch String Trimmer Kit

When an established leader in pro-grade cordless hand tools enters the lawn-care category, shoppers will want to take note. The DeWALT 60V battery trimmer packs a heavy-duty brushless motor powered by a 60V 3Ah FlexVolt lithium battery that lets it tear through all kinds of tough weeds for at least 40 minutes per charge.

This attachment-capable trimmer comes equipped with a straight shaft and Rapid- loading adjustable spool. It uses.080-inch trimmer line to cut either a 15-inch or 17-inch swath. A safety switch in the grip prevents accidental starts. Users can select high or low power, depending on the project, and control the trimming RPM with a variable-speed trigger. The universal attachment feature lets owners replace the trimmer attachment with a variety of other tool heads, including an edger, hedge trimmer, pole saw, and more.

The DeWALT battery trimmer was one of the heaviest we tested, but also the most powerful. With the standard.080-inch trimmer line that came pre-spooled, this tool had no trouble cutting anything from grass to thin tree seedlings and even tough blackberry canes. In low-power mode it offered more cutting force than the high- power setting of most others we tested. In high range it beat all but the STIHL, which was about an even match in terms of pure power. To be honest, high power was too much for many of our applications, so we also tested thoroughly in low range. It ran about 40 minutes on high, and about 60 on low.

Other than the heavy weight, the only negative point we have to offer is the noise. The trimmer is loud to begin with, and when initially triggering or feathering the trigger it makes an even louder whine/whistle sound. Still, it’s a very impressive tool at a fair price for the power and runtime and a good choice for large properties or cleaning up overgrown areas.

Product Specs

• Battery type: 60V 3Ah FlexVolt lithium ion
• Runtime: 40 minutes
• Weight: 12.95 pounds
• Outstanding power for clearing overgrown weeds and brush
• Works with.080-inch or.095-inch trimmer line for normal or heavy trimming
• Excellent runtime of up to an hour for average grass trimming
• Power head can run other landscaping tool attachments
• Heavy weight of just under 13 pounds, but no shoulder strap
• Longer battery charge time at 135 minutes
• Noisy operation, especially when initially triggering

Get the DeWALT battery trimmer at Amazon, Ace Hardware, or The Home Depot.

BlackDecker LSTE525 20V MAX String Trimmer/Edger

Weighing just 8.8 pounds, this string trimmer is easy to carry, maneuver, and control with an adjustable handle and a safety trigger switch to prevent accidental starts. The 12-inch trimming radius is suitable for keeping the lawn properly maintained without damaging fencing, decks, trees, or other common yard obstacles.

This cordless string trimmer operates with a 20V battery that can last for up to 20 minutes, and a spare battery is included. For edging, simply turn the head and use the built-in wheel to balance as the trimmer string handles the task.

When we used the tool to trim weedy lawn grass patches and edge the curb and driveway, it made nice clean cuts and tracked well to make good straight edges. The shaft and handle adjusted to comfortably fit our 6-foot user. The tool is amazingly lightweight for the amount of power it offers, but the weight is mostly balanced to the front of the handle, and having to manually counterbalance it while working fatigued our tester. Though not built for heavily weed-infested yards, it has ample power and runtime to clean up curb lines, driveway edges, and otherwise maintain a smaller landscape.

Product Specs

• Very lightweight and easy to carry
• Handle is customizable to fit the size of user
• Trimmer doubles as an edger with a simple turn of the head
• Battery provides limited runtime, although a spare is included
• Not enough power to tackle coarse, woody weeds
• Weighted toward the front, which may cause user fatigue

Get the BlackDecker MAX battery trimmer/edger at The Home Depot or Tractor Supply Co.

Echo DSRM-2100 eFORCE 56V 16-Inch Battery Trimmer

A wide cutting swath, extended runtime, and powerful trimming ability make the Echo DSRM-2100 eFORCE battery trimmer an excellent choice for large yards. The straight-shaft trimmer is powered by a brushless motor and 56V 2.5Ah lithium battery for up to 56 minutes of powerful performance that rivals traditional 2-cycle trimmers. It cuts a 16-inch-wide swath to get the job done efficiently.

This battery trimmer weighs in at a comfortable 9.75 pounds, making it a relatively lightweight choice at this level of capability. It features battery-saving low/high power settings for different cutting conditions, a variable-speed trigger, and a cushioned handle grip for comfort. The Speed-Feed cutting head comes preloaded with.095 trimmer line and reloads quickly without disassembly.

The Echo eForce battery trimmer is an excellent value for large-property maintenance. In our tests, the cutting power seemed to be slightly less than that of the DeWALT and STIHL trimmers, but it was still very capable. In high-power mode we trimmed for about 40 minutes. But the better-than-average power and wider swath meant that in 40 minutes with the Echo, we were able to complete work that other trimmers would need an hour to accomplish. The noise level was good, and reloading was fast and easy.

This trimmer could have scored higher with improved balance. Although it is a lightweight trimmer overall, most of the weight is in the working end. The heavy cutting head forces the operator to compensate by lifting upward on the front handle and pushing downward on the rear handle while working. We tested with the 2.5Ah battery that comes standard. Working with the available 5Ah battery (sold separately) would rebalance the trimmer to some degree while doubling runtime and increasing overall weight.

Product Specs

• Excellent price for this combination of power and runtime
• Wide cutting swath and power performance for large properties
• Rapid charging system charges the battery in less than 40 minutes

Get the Echo battery trimmer at The Home Depot or Acme Tools.

Worx WG163 20V Power Share GT 3.0 String Trimmer

Owners of small yards may find this lightweight string trimmer an excellent option. It weighs just 5.5 pounds and easily converts from a trimmer to an edging tool; a built-in wheel helps balance the tool while edging. A push-button feed system gives the ability to extend the trimmer string without bumping the 12-inch trimmer head or manually pulling additional string from the trimmer. It comes with two 20V batteries and a charger, and the battery lasts for up to 20 minutes on a full charge.

This Worx string trimmer tackled our grassy areas with ease, both the weedy and weed-free zones, but it wasn’t as capable on rough areas. We were particularly impressed by the edger function, which we found comfortable and well balanced thanks to the 90-degree shaft-rotation capability. The adjustable trimmer head and upper handle let us customize the working angle, but the process of doing so proved clunky. We had to reach down and turn a rather stiff knob at the connection point between the shaft and cutting head to unlock and relock the angle for each adjustment.

Product Specs

• Trimmer and edger in a single tool
• Smooth push-button Command Feed spool system
• Adjustable head tilts to 90 degrees
• Battery provides limited runtime, although a second battery is included
• Head-tilt adjustment is somewhat awkward and clunky
• Relatively long 60-minute charging time for 20 minutes of runtime

Husqvarna 320iL 40V Battery String Trimmer

One limiting factor of most string trimmers is the cutting head’s direction of rotation; it matters more than one might think. The direction of rotation determines where the clippings will go, and in some situations, how the user should grip the trimmer. The Husqvarna 320iL 40V battery trimmer offers a solution, thanks to its dual-direction cutting head. At the touch of a button, we could change from clockwise to counterclockwise rotation and back, without changing grip on the handles.

This straight-shaft trimmer is powered by an efficient brushless motor and 40V 4Ah battery that drives about 45 minutes of runtime per charge. It features a Rapid-load cutting head that comes prespooled with.080 trimmer line and cuts a 16-inch swath. Low-vibration technology improves operator comfort, and the machine weighs in at just over 10 pounds with the battery.

The Husqvarna 320iL ranked near the top of the test group in terms of user comfort and quiet operation, but its power was somewhat underwhelming after the big showing from the STIHL and DeWALT trimmers. We were super impressed with the dual-direction feature. It allowed us to use the trimmer right- or left-handed, and we could safely trim curb lines from either direction without standing in the street. On high-power mode the trimmer performed lawn-trimming duty superbly, but in heavy weeds and natural areas it could not keep up with the more powerful trimmers.

Anyone not interested in going off the beaten path might still do well to consider this trimmer. Its balance is impeccable, rivaling the STIHL in comfort even though it’s a fraction of a pound heavier. And for quiet operation, this one takes the gold medal. The only real question regarding comfort and control was, why so many buttons? Its four thumb-operated buttons control on/off, high/low power, clockwise rotation, and counterclockwise rotation.

Product Specs

• Dual-direction trimmer head leaves clippings where desired
• Excellent balance for comfortable extended use and less fatigue
• Among the quietest of the trimmers we tested
• The 4 buttons and a trigger seem like too many controls
• Even the high power is not adequate for heavy-duty trimming

Get the Husqvarna battery trimmer at Lowe’s.

Worx WG170 20V Power Share Revolution String Trimmer

While plenty of string trimmers also function as edgers, we found this model to have the best dual-function design. At the push of a button, the trimming head on the Worx WG170 Revolution trimmer converts to an edger that rolls easily along the edge of a sidewalk or driveway. The head tilts up to 90 degrees, so it is easy to reach weeds on slopes while standing comfortably.

The trimmer comes with two batteries plus a charger and three extra spools of trimmer line. The string trimmer also boasts a handy spacer guard that keeps it from bumping into plants, and the shaft adjusts to suit taller or shorter users. It cuts a 12-inch swath and operates on a 20V lithium-ion battery. We tested the tool with the 2Ah battery, but it also comes with a 4Ah battery at some retailers.

In our yard, this trimmer cut through and created a crisp edge on both weedless and weedy lawn areas. We really liked the easy adjustable feature on the trimmer head: A twist lock holds it in just the right position, up to 90 degrees, for a customized working angle for users of different heights. Also, the batteries are interchangeable with those of many other Worx 20V cordless tools.

Product Specs

• Adjustable upper handle to accommodate users of different sizes
• Trimmer head converts to an edger for use along sidewalks or driveways
• Comes with 2 batteries to make up for shorter runtime
• Requires a relatively long charging time
• Trimmer feels underpowered for tackling coarse, heavy weeds
• Only 20 minutes of runtime per charge

Get the Worx WG170 GT battery trimmer at Amazon or Target.

Greenworks Pro 80V 16-Inch Cordless String Trimmer

The Greenworks Pro 80V trimmer is a quality tool that adapts to a variety of other functions with attachments such as a brush cutter. (However, attachments are sold separately.) The 2Ah battery provides up to 45 minutes of runtime and recharges in just 30 minutes. The brushless electric motor is efficient and quiet, providing plenty of torque to cut through heavy weeds without the noise and smell of a gas-powered unit.

In our test areas, the Greenworks Pro trimmer was powerful enough to cut through the toughest weeds and vines with ease. The heavy battery weighs the machine down toward the rear, but the included adjustable shoulder strap makes operation more comfortable. The battery is compatible with other Greenworks 80V tools. Just don’t get too excited about the variable-speed trigger: Although it’s intended to allow a gradual increase from “off” to “high” speed, we found the range of movement between the two to be minuscule; in effect, the trimmer is either “off” or “on.”

Product Specs

• Battery type: 80V 2Ah lithium ion
• Runtime: 45 minutes
• Weight: 10.6 pounds without battery
• Trimmer has a quiet, efficient brushless motor
• The recharging time is only 30 minutes; runtime is 45 minutes
• Gas-like power and performance without the noise and smell
• Slight lag time between triggering and full power
• The trimmer’s adjustable speed feature is difficult to use
• Weight is balanced toward the rear, but shoulder strap helps

Get the Greenworks Pro battery trimmer at Amazon.

What to Consider When Choosing a Battery Trimmer

When shopping for string trimmers, also known as weed eaters, keep in mind yard size, how often the tool will be used, and the height and strength of the primary user. The following key considerations will help in selection.

Trim Width

Trim width, also called swath width, indicates how wide a path the trimmer will cut through weeds in a single pass. Many models on the market today feature swath widths of 10 to 18 inches. The wider the width, the more power the trimmer must have, which often means the tool will be heavier because it will require a larger, more powerful battery.

Battery Type

Running a string trimmer requires a hefty dose of power. Though most of today’s trimmers run on rechargeable lithium-ion (Li-ion) batteries, a few accept nickel cadmium (NiCad) batteries. Li-ion batteries are more powerful, but NiCad batteries are less expensive (an average of 70 to 125 less). Li-ion batteries also are smaller, hold a charge longer, and provide full power throughout the discharge cycle.

NiCad batteries suffer from “memory effect,” meaning if the battery is used before it has fully charged—or if it’s recharged before its power depletes—it will “remember” the earlier charge level and won’t hold a longer charge in the future. If choosing a trimmer that has a NiCad battery, let it charge fully before use and drain completely before charging. For most users, a string trimmer with a Li-ion battery will be the best choice.

Voltage

Along with battery type, consider how much operating power the battery has, which is measured in volts. Today’s rechargeable string trimmer batteries average from 18 volts up to an average of 60 volts of power. powerful batteries at the high end often are intended for commercial use and can cost 200 or more per battery.

Some string trimmers in this category sell without a battery (or battery charger), which the user must purchase separately. This could be a cost-saving benefit for those who are adding to a same-brand, battery-compatible cordless tool collection, since the same battery will power multiple tools. However, it can be more convenient to purchase a kit with multiple batteries to have one on the charger while the other is in use.

Feed Type

The “feed” of a string trimmer indicates how the trimmer head releases additional trimmer line as it becomes frayed and broken during use. The standby is a bump feed where the user bumps the bottom of the trimmer (the area where the spool attaches) on the ground to release a few inches of fresh line.

Some newer models feature an auto-feed sensor that gauges the length of the strings and releases more when needed. Still others have a push button to release more line. Auto and button feeds eliminate the need to bump the spool, which can reduce the risk of damage if bumped too hard, but many commercial-type trimmers still use bump feed because it’s quick and easy.

Curved vs. Straight Shaft

Some string trimmers feature a straight shaft that runs from the handle to the cutting head, while other models feature a distinct curve in the lower shaft about two-thirds of the way down. Some users find curved-shaft trimmers to be easier to operate since the spool end already rests at a handy angle for weed whacking.

Straight-shaft trimmers often accommodate interchangeable tools, such as a tree trimmer head, which can be swapped out depending on the task at hand. In general, straight-shaft trimmers work better for users at least 6 feet tall, while shorter users will appreciate curved-shaft trimmers.

Noise

Battery-powered string trimmers have a distinct advantage over gas-powered trimmers when it comes to noise pollution. Gas-powered trimmers are moderately loud, emitting an average of 90 decibels (about as loud as a motorcycle passing by from 25 feet away). By contrast, a cordless string trimmer emits approximately 77 decibels, which is comparable to casual conversation.

FAQs

Those who are still unsure about how to use a battery string trimmer may find the following answers to common questions about these tools helpful.

Q. Can a string trimmer cut weeds?

A string trimmer is used to cut and control weed growth around the home and garden. However, light-duty trimmers may have issues with very dense weed growth.

Q. Can you use a string trimmer to cut grass?

A string trimmer can be used to cut grass, though you need to be careful not to cut the grass too short while trying to keep the trimmer balanced. It isn’t the easiest way to cut the grass, but it is possible.

Q. Can you edge with a string trimmer?

Yes, a string trimmer can be used for edging the garden, driveway, walkway, or sidewalk. If you have a large yard, it may be better to invest in a separate edging tool.

Q. How many volts should be in a trimmer?

String trimmer batteries average from 18 volts up to 80 volts. Typically, the higher the voltage, the longer the battery life.

Q. How do you edge a lawn with a string trimmer?

Hold the string trimmer perpendicular to the lawn to keep the cut even. Position the head about 4 inches off the soil so the string has space to rotate. The string should rotate and cut through the grass and dirt. As you move along the desired borders, keep the head balanced and even. Clean up the cut grass and dirt to finish the job.

Why Trust Bob Vila

Bob Vila has been America’s Handyman since 1979. As the host of beloved and groundbreaking TV series including “This Old House” and “Bob Vila’s Home Again,” he popularized and became synonymous with “do-it-yourself” home improvement.

Over the course of his decades-long career, Bob Vila has helped millions of people build, renovate, repair, and live better each day—a tradition that continues today with expert yet accessible home advice. The Bob Vila team distills need-to-know information into project tutorials, maintenance guides, tool 101s, and more. These home and garden experts then thoroughly research, vet, and recommend products that support homeowners, renters, DIYers, and professionals in their to-do lists.

Meet the Tester

Mark Wolfe is a writer and product tester with a background in the nursery and landscaping industry. For more than 20 years he mowed, edged, planted, pruned, cultivated, irrigated, and renovated beautiful landscapes. Now he tests and writes reviews about the latest outdoor power equipment, hand tools, lawn-care products, and other outdoor-living goods.

Additional research provided by Glenda Taylor.

The best cordless lawn mowers in 2023

Looking for the best cordless mower? Browse our experts’ pick, from budget to premium models.

A lawn mower may be one of the first purchases we make when getting a garden of our own, but that doesn’t mean finding a good quality one is easy. There are so many models and brands on the market to choose from, including corded electric and petrol, but as their range increases and fall, cordless, battery-powered models are an increasingly popular option.

Light and compact compared with traditional petrol models, cordless mowers are simple to use, easy to manoeuvre around the garden, and have none of the maintenance and servicing needs or costs of petrol lawnmowers. Powered by a rechargeable lithium-ion battery, which charges up quickly and won’t lose power in storage, they’re also quiet and emission free.

To compare these cordless mowers against other types of mower, we’ve reviewed the best lawn mowers, robotic lawn mowers, electric lawn mowers and push mowers, too. And if your lawn needs a bit of attention, our experts have tested a range of the best manual and powered aerators and scarifiers.Keep edges looking neat with our pick of the best strimmers, the best garden shears and the best lawn edging, and if you’re thinking about somewhere to store your new mower, our comprehensive guide to choosing the best garden shed will be helpful.

For your next DIY project, have a look at the best cordless drills.

The best cordless mowers to buy at a glance

Cordless mowers. Buyer’s Guide video

Many thanks to Rosie Yeomans and Sparsholt College for their help in making this video.

Getting the best cordless lawn mower for you means ensuring it has the correct cutting width, range of cutting heights, and weight plus a battery run time that matches the size of your lawn. We’ve tested a range of cordless push mowers, putting them through their paces across a range of grass and terrains, to help you find the right one for your garden.

Each mower has a detailed list of pros and cons for clarity and has been rated according to set up and storage, handling, mowing and value for money. Every mower in our round up below has scored a minimum of four out of five stars, so you can buy with confidence.

In every review we award outstanding products our coveted Best Buy award. To see these and the others we recommend, browse our pick of the best cordless lawn mowers, below.

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Best Buy cordless mowers

Husqvarna Aspire LC34-P4A

Our rating: 4.9 out of 5

• Quiet
• Cuts even long grass with ease
• Battery level visible while mowing
• Small and compact for easy storage
• Part of the POWER FOR ALL cordless range

Part of the new Husqvarna Aspire cordless range, which includes a hedge trimmer, pruner and leaf blower, this 34cm mower is powered by an 18V POWER FOR ALL ALLIANCE battery and charger. These are interchangeable with tools in other leading brands such as Flymo, Gardena and Bosch so if you also invest in tools in these ranges, you’ll only need to buy the bare tool and won’t have different batteries and chargers taking up space in the shed.Great for small gardens the mower comes ready to go, there’s no assembly or handles to attach, and it folds down to a compact size when you’re finished, with a telescopic handle that folds completely flat over the body of the mower. It can then be stood up against a wall or hung up, and even comes with a handy hook. The 30l grass bag also flattens down to take up very little room and can be hung on the mower. The Aspire is light, with a carry handle so that lifting it up steps or into other areas is easy and it has an adjustable handle to suit different height users. It’s comfortable and easy to manoeuvre around the garden and has just four cutting heights to choose from, ranging from 25-65mm and changed easily with a single lever on the body of the mower. It cuts grass quietly and smoothly and has an automatic boost that increases blade speed when you’re mowing in tougher, longer areas that works well. You can hear it kick in when you push the mower into longer grass and unlike other cordless mowers that can cut out, just carries on cutting the grass. While you mow the battery charge level is always clearly visible so you know how much battery you have left and when it needs charging. It comes with a two year warranty and we awarded it a BBC Gardeners’ World Magazine Best Buy in 2023 for ease of use.

Specs: Battery: charge time. 95 mins; run time. 500sqm. Cutting: width. 34cm; height. 25-65mm. Grass box. 30 litre.

Buy the Husqvarna Aspire C34-P4A cordless mower from Husqvarna and Sam Turner

Greenworks GDG24LM33

Our rating: 4.5 out of 5

• Easy to assemble and use
• Comfortable padded handle
• Choice of mulching or collecting clippings
• Interchangeable battery with Greenworks 24V family

Ideal for smaller gardens this sturdy, great value cordless mower is easy to put together, well thought out and simple to use. Thanks to a padded handle it’s comfortable to push, although it did feel a little short for our taller tester, and it’s light and easy to manoeuvre around trees and beds and borders. There are five cutting heights to choose from, adjusted with the simple lift of a lever and it offers the choice of collecting clippings in the 30 litre fabric grass bag or inserting the mulching plug and leaving them on the lawn to break down and feed the grass. It mows well but doesn’t like very long grass, with the battery cutting out occasionally but its long lasting brushless motor offers a a decent run time of 46 minutes and it charges in two hours. Plus, as part of the Greenworks 24V family, both the battery and charger are interchangeable with all the other tools in the range, saving you money if you invest in more in the future. We awarded it a BBC Gardeners’ World Magazine Best Buy for the best budget cordless mower in 2023.

Specs: Battery: charge time. 120 mins; run time. 46mins. Cutting: width. 33cm; height. 25-70mm. Grass box. 30 litre.

Yard Force LMG37A 40v 37cm

Our rating: 4.8 out of 5

• Rear roller
• Double folding handle for easy storage
• Quickest charge time
• Part of the Yardforce GR40 cordless range

This sturdy mower has a 37cm cutting width and useful features including a rear roller for those much desired stripes. Awarded a BBC Gardeners’ World Magazine Best Buy in 2022 for small to medium lawns, clippings are collected in the large 40 litre fabric grass bag. It offers a wide choice of seven cutting heights, from 25-75mm, and is easy to fold away at the end of the day. The 40V battery is quick to charge, taking just 50 minutes and when full it has the capacity to cut a 400m2 lawn.

Specs: Battery: charge time. 50 mins; run time. 400sqm. Cutting: width. 37cm; height. 25-75mm. Grass box. 40 litre.

Buy the Yard Force LMG37A 40V 37cm cordless mower from Yard Force, Amazon and Wickes