Black Friday Cordless String Trimmer Checklist: 7 Checks
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If you are shopping a Black Friday cordless string trimmer checklist, the useful checks are the ones printed on the listing itself: which battery the tool uses, whether a battery and charger are in the box, how wide the cut path is, how the line feeds, how much the tool weighs, what the cord needs, and which safety items to add. This guide walks through those seven checks using five Amazon listings. It is not a ranking, and it does not cover what a tool costs or when to buy.
Quick answer
- Check the battery system first. The Worx WG163.9 is listed as “Battery & Charger Not Included”, so it only suits an owner who already has a PowerShare 20V battery.
- Measure the edge you trim most, then compare cut paths. The listings in this guide give 10, 12 and 14 inches. A 14-inch path is 40 percent wider than a 10-inch path (14 ÷ 10 = 1.4).
- Read the feed type and the weight before you buy. Four of the five listings describe an automatic or command feed. Only two give a weight, and the Worx text does not say what its figure includes.
- For a corded trimmer, measure the cord run first. Then add eye and ear protection to the box, whichever tool you choose.
When to run these checks
Black Friday falls on Friday, November 27, 2026, the day after Thanksgiving on November 26. This guide is scheduled to go live on November 21, which leaves time to run the checks before that Friday. The checks do not change with the date, but listings can. The listing text behind this guide was read on 20 October 2026. A listing can add or drop an included item, change a feed description or update its title, so read the live page on the day you decide.
Work through the checks in order. The battery comes first because it decides whether a cordless tool is usable at all. The cut path, feed and weight come next, since they decide how the tool suits the yard and the person using it. The safety items come last, but they apply to every tool in this guide.
This post does not cover what the tools cost or when a particular offer ends. Use the checks below to decide what the product page must say before you buy.
Check 1: the battery system
A cordless listing is complete only when its battery system matches the one the owner already has, or when the box includes a battery and charger. The five listings in this guide use four battery systems and one cord: Worx PowerShare 20V, Ryobi ONE+ 18V, DEWALT 20V MAX, Greenworks 24V, and the BLACK+DECKER BESTA510, which runs on 120 volts from an outlet. None of the listings shows that its battery fits another brand’s tool, so this guide assumes none of them do.
Ask the owner which battery they already have, or read the brand and voltage printed on that battery. The Ryobi listing says its battery swaps between the trimmer, the blower and other Ryobi tools. The Greenworks text we read does not confirm whether its 2.0 Ah battery works with other Greenworks tools, so for that kit the owner should not assume it does.
After the system, read the listed battery size. The Ryobi and Greenworks kits list a 2.0 Ah battery, and the DEWALT text we read gives no battery size. None of the listings in this guide gives a runtime. Runtime is a manufacturer claim that depends on grass, height and terrain, so this guide does not compare it.
Check 2: what the box includes
Read the included-items line on the listing before you compare any other figure. Three of the five listings say a battery and charger are included: Ryobi, DEWALT and Greenworks. The Worx WG163.9 is listed as “Battery & Charger Not Included”, so it is a tool-only purchase. The BESTA510 has no battery to include because it is corded.
The Greenworks listing gives the most detail. It says the kit includes a 2.0 Ah battery, a 30W USB-C charger and a three-year warranty on both tools. Those three details are useful to compare against other kits. The text we read gives no warranty length for the other four listings.
Check 3: the cut path
The cut path is the width of the strip the line trims in one pass. The listings state 10, 12 and 14 inches. The DEWALT text we read gives no cut path, so that kit cannot be compared on this check.
To compare the widths, divide each listed width in inches by 10, using the 10-inch Ryobi path as the base. The table shows the result.
| Listing | Cut path (as listed) | Width ÷ 10 | Compared with the 10-inch Ryobi path |
|---|---|---|---|
| Ryobi ONE+ 18V kit | 10 in | 1.00 | Base |
| Worx WG163.9 | 12 in | 1.20 | 20 percent wider |
| Greenworks 24V kit | 12 in | 1.20 | 20 percent wider |
| BLACK+DECKER BESTA510 | 14 in | 1.40 | 40 percent wider |
| DEWALT DCKO215M1 kit | Not stated | Not calculated | Not calculated |
To see what the width does to coverage, assume a straight 100-foot edge and a full listed width cut on every foot of travel. The area per pass is the width in feet multiplied by 100 feet: about 83 square feet for a 10-inch path, 100 square feet for 12 inches and about 117 square feet for 14 inches. Real trimming does not cut the full width at every step, so read these figures as upper limits for each path rather than coverage the tool will deliver.
Choose the path by the strip you trim most. A narrow strip along a fence line may not need the widest path, while a long walkway edge gains more from it. The listings do not say how cut path changes weight, so the weight check below stands on its own.
Check 4: the feed type
The feed is how new line reaches the cutting head. Four listings describe a feed system, and the DEWALT text we read does not. The Worx WG163.9 has a command feed, which the listing describes as feeding line on a button press. The Ryobi kit has an auto-feed line head. The Greenworks trimmer has an auto-feed system. The BESTA510 has an automatic line feed that the listing says releases line without bumping the tool.
Feed type is also a safety check. The Texas A&M sheet warns that “Automatic-feed and bump-feed trimmers may let out more string than you think,” and that the string can then strike the user unexpectedly. It tells users to monitor the string length. With an automatic or command feed, the string length needs watching during use, not only at setup.
If the listing does not say how the line feeds, ask the seller or read the full product page before you buy. The DEWALT text we read says nothing on this point, so treat its feed type as unknown until you have the full page.
Check 5: the weight
Weight matters most to the person who carries the tool for long stretches, or who has a sore back or wrist. Only two listings give a weight in the text we read. The Worx WG163.9 is listed at 4.6 pounds. The Greenworks trimmer is listed at 4.08 pounds without its battery. The Ryobi, DEWALT and BESTA510 text we read gives no weight.
These two figures are not the same kind of number. The Greenworks figure excludes its battery. The Worx text does not say whether its 4.6 pounds includes a battery, and no battery is in its box. The 0.52-pound gap (4.6 minus 4.08) therefore does not show that one tool is lighter in use.
Footing and balance matter at any weight. The Virginia Tech sheet tells string trimmer users to “Maintain firm footing and balance when using a string trimmer” and not to overreach. That advice applies whichever tool you buy.
Check 6: the cord and power
Only the BLACK+DECKER BESTA510 in this guide is corded. Its listing gives a 6.5-amp motor, 120 volts and a 14-inch cut path. The listing describes a cord retention system meant to help keep the cord from disconnecting by accident. The text we read gives no cord length and does not say whether an extension cord is included.
Measure the distance from the outlet to the farthest edge you trim before you buy. Because the cord length is not stated, the listing alone cannot tell you whether the cord reaches. Check the full page or the manual for the length, and do not assume an extension cord comes in the box.
The Texas A&M sheet sets out the electrical rules for trimmers. It says to “inspect all extension cords for cuts, nicks, scrapes, and exposed wire that could pose an electrical hazard,” and to replace damaged cords right away. It says not to operate electric trimmers in wet conditions or around puddles, and to unplug an electric trimmer before inspecting, cleaning, adjusting or replacing string. The sheet is written for electric and gas trimmers and does not mention battery trimmers, so for those, follow the manual.
Check 7: what to add to the box
Eye and ear protection belong in every box. The Virginia Tech sheet says to “Wear full eye and ear protective devices when operating powered hand tools.” The Texas A&M sheet names “goggles or safety glasses, and ear plugs” as part of the protective equipment for trimmers. Add both.
A spare line makes sense for a trimmer that uses a spool, since the owner will need line at some point. This guide does not say which replacement line fits which model, so check the line for the exact model before you add it.
The five listings on the seven checks
The table shows only the figures the listing text states. Where the text we read gives no figure, the cell says Not stated.
| Listing | Power | Cut path | Battery and charger | Feed | Weight |
|---|---|---|---|---|---|
| Worx WG163.9 | 20V PowerShare | 12 in | Not included | Command feed | 4.6 lb |
| Ryobi ONE+ 18V kit | 18V ONE+ | 10 in | Included (2.0 Ah battery) | Auto-feed line head | Not stated |
| DEWALT DCKO215M1 kit | 20V MAX | Not stated | Included | Not stated | Not stated |
| Greenworks 24V kit | 24V | 12 in | Included (2.0 Ah battery, 30W USB-C charger) | Auto-feed system | 4.08 lb (trimmer, without battery) |
| BLACK+DECKER BESTA510 | 6.5 amp, 120 V corded | 14 in | Not applicable (corded) | Automatic line feed | Not stated |
The five listings, one by one
Each card gives the stated facts, when the tool suits, when it does not, and one limitation. The cards are not ranked.
Worx WG163.9 2-in-1 cordless string trimmer and edger
The listing describes a trimmer that converts to an edger, a command-feed spool that feeds line on a button press, a telescopic shaft and a shaft that tilts 90 degrees for sloped or hard-to-reach edges.
- Good for: an owner who already has a Worx PowerShare 20V battery and wants one tool for trimming and edging.
- Skip if: the owner has no PowerShare 20V battery, or the yard needs a cut path wider than 12 inches.
- Limitation: the battery and charger are not in the box, and the text we read does not say whether the 4.6 lb figure includes a battery.
Ryobi ONE+ 18V string trimmer/edger and blower combo kit
The description says the trimmer has a 10-inch cut swath, an auto-feed line head and a rotating shaft, so the user switches between trimming and edging without changing tools. The blower is described for clearing hard surfaces, with a debris scraper for loosening stuck dirt and leaves.
- Good for: an owner who already uses Ryobi ONE+ 18V tools, or who wants one battery to run both a trimmer and a blower.
- Skip if: the yard needs a cut path wider than 10 inches, or the owner would rather buy into a different battery system.
- Limitation: the text we read gives no weight for the trimmer or the blower.
DEWALT 20V MAX string trimmer and leaf blower kit (DCKO215M1)
The listing describes a two-tool kit, a trimmer and a blower, and says the kit runs with no gas, cords or fumes. The title says the battery and charger are included.
- Good for: an owner who already uses DEWALT 20V MAX tools, or who wants a battery-included kit that covers trimming and blowing.
- Skip if: you need a cut width, a weight or a battery size before you buy, because the text we read gives none of them.
- Limitation: the text we read gives no cut path, weight, feed type or battery size, so this card has the fewest checks of the five.
Greenworks 24V 12 in string trimmer and 270 CFM blower combo
The listing describes a brushless 12-inch trimmer with a 0.065-inch single line and an auto-feed system, and a brushless blower listed at 270 CFM and 130 MPH. The trimmer weighs 4.08 lb without its battery. The kit includes a 2.0 Ah battery, a 30W USB-C charger and a three-year warranty on both tools.
- Good for: a gift that covers trimming and blowing in one box, with the battery and charger included.
- Skip if: the owner needs a battery size other than the listed 2.0 Ah, or a battery system other than Greenworks 24V.
- Limitation: the listing gives no runtime, and the text we read does not confirm whether the battery works with other Greenworks tools.
BLACK+DECKER BESTA510 corded 2-in-1 trimmer and edger
The listing describes a 6.5-amp motor, a 14-inch cut path, an automatic line feed that avoids bumping the tool to release line, and a wheeled edge guide that converts the trimmer to an edger. It also describes a cord retention system.
- Good for: a lawn close to an outdoor outlet, where the owner does not want to charge batteries.
- Skip if: the yard is far from an outlet, or the owner wants a cordless tool that moves freely around the yard.
- Limitation: the text we read gives no cord length, does not say whether an extension cord is included, and gives no weight.
Before each use
The two sheets set out a short set of checks that apply to any string trimmer in this guide. Run them each time you use the tool, not only on the first day.
- Inspect the trimmer for loose fasteners and a cracked string head before each use, and replace damaged parts, as the Virginia Tech sheet advises.
- Remove debris such as glass, limbs, rocks and trash that could become a projectile, as the Texas A&M sheet advises.
- Look for exposed electrical wires, communication lines and extension cords that the trimmer string could damage.
- Keep the string head below waist level, and keep your body away from it.
- Do not remove protective guards or string guides.
- Use the trimmer only for trimming weeds and grass, as the Virginia Tech sheet says.
- Secure long hair above the shoulder when you operate the trimmer.
Safety note
Trimmers throw debris. The Texas A&M sheet says that “Weed trimmers can throw stones, sticks, and other objects at high speeds.” The Virginia Tech sheet says to keep bystanders, children and pets “at least 50 feet away from the work area when operating powered hand tools.” Clear the area before you begin, and keep bystanders at that distance.
The two sheets use the same 4,600 injury figure but describe it differently. The Virginia Tech sheet says trimmers and edgers alone cause more than 4,600 injuries a year that need emergency room treatment, and that about one-third of those cases are eye injuries. The Texas A&M sheet attributes the 4,600 figure to a Consumer Product Safety Commission estimate for 1989, and says about one-third of the injuries were to the eye. Neither sheet gives a current count, so this guide does not present 4,600 as a current number. The one-third eye share is the point that supports the eye-protection check.
Batteries need the same care. The EPA says lithium-ion batteries and the devices that contain them “should NOT go in household garbage or recycling bins.” Take them to certified battery electronics recyclers, to participating retailers or takeback services, or to your local solid waste or household hazardous waste program. Place each battery in its own plastic bag, and put non-conductive tape over its terminals. The EPA also warns that “Even used batteries can have enough energy to injure or start fires.” If a battery is damaged, the EPA says to contact the battery or device manufacturer for handling information.
This guide does not give battery repair or charging advice. For those, use the manual that came with the tool and the manufacturer’s handling information.
Mistakes to avoid
- Buying a tool-only Worx without a battery. The listing says the battery and charger are not included, so the gift is incomplete unless the owner already has a PowerShare 20V battery.
- Assuming one brand’s battery works on another brand’s tool. None of the listings here shows cross-brand fit, and the Greenworks text does not confirm that its battery works with other Greenworks tools.
- Comparing the two weights as if they match. The Greenworks figure excludes its battery, and the Worx text does not say what its figure includes.
- Treating the widest path as the answer. The 14-inch BESTA510 path is 40 percent wider than 10 inches, but the tool is corded and its cord length is not stated.
- Forgetting the feed. The Texas A&M sheet says automatic-feed trimmers “may let out more string than you think.”
How we chose
- We kept five listings that show different battery situations: a tool-only Worx that needs a battery the owner already has, two kits with a battery and charger, one kit whose text gives few figures, and one corded trimmer.
- We kept a listing when its text gave at least one figure for cut path, battery or weight, so each card has something to check. The DEWALT kit passes this rule on its battery and charger line alone.
- Every listing figure comes from the listing text read on 20 October 2026. The safety points come only from the three sources in the Sources section.
- We did not keep a complete count of every listing we looked at, so we do not state a total. The five are not a ranking, and the order of the cards does not show a preference.
- Cost and customer feedback are left out. Both change often, and neither is one of the seven checks.
What we could not verify
- The DEWALT listing text we read gives no cut path, weight, feed type or battery size.
- No listing text we read gives a runtime for a cordless tool.
- The Ryobi and BESTA510 text we read gives no weight.
- The Worx text does not say whether its 4.6-pound figure includes a battery.
- The BESTA510 text does not state a cord length or say whether an extension cord is included.
- The Greenworks text does not confirm whether its 2.0 Ah battery works with other Greenworks tools.
- We did not check replacement line for any of the five listings, so this guide makes no claim about which line fits which model.
- Listing text can change after 20 October 2026, so check the live page before you buy.
- The Texas A&M sheet is undated and cites older Consumer Product Safety Commission figures, including 1989 and 2001 data. It supports only general safety points in this guide.
- The Virginia Tech sheet is dated 2019 and gives the 4,600-injury figure as a yearly count without naming the year it comes from, so this guide does not present that figure as current.
FAQ
Should I give a tool-only trimmer as a gift?
Only if the owner already has a battery and charger for that system. The Worx WG163.9 is listed as “Battery & Charger Not Included”. A kit with a battery and charger in the box avoids that problem, so check the included-items line first.
Is a wider cut path always better?
No. A wider path covers more ground per pass, as the arithmetic above shows, but the listings do not say how it changes weight, and a corded tool still has to reach the edge. The right width is the one that fits the strip you trim most.
When does a corded trimmer make sense?
When the lawn sits close to an outdoor outlet and the owner does not want to manage batteries. Measure the run to the farthest edge first, because the BESTA510 text does not state a cord length.
What safety items should I add?
Safety glasses or goggles and ear protection are the two items the sources name for trimmers. The Virginia Tech sheet also says to wear long pants and closed-toe shoes, and to keep bystanders, children and pets at least 50 feet from the work area.
Where should I take an old battery?
Not in household garbage or recycling. The EPA says to take lithium-ion batteries to certified battery electronics recyclers, to participating retailers or takeback services, or to your local solid waste or household hazardous waste program. Earth911 and Call2Recycle are two recycler finders the EPA names.
Bottom line
Check the battery system before anything else, and read the included-items line next. Then compare the cut path with the edge you trim most, and read the feed type and weight on the full page. For a corded trimmer, measure the run and check the cord length. Eye and ear protection go in the box whichever tool you pick.
Related guides
- For more cordless trimmers and edgers beyond these five, see our guide to cordless string trimmers for edging, trimming and small yards.
- For a line trimmer list with its own battery notes, see our line trimmer picks.
- To compare two trimmer platforms, read the Greenworks and EGO Power+ string trimmer comparison.
- For the voltage and amp-hour terms used in these listings, read our guide to lawn and garden battery voltage.
- If the owner already uses Ryobi ONE+ tools, see Ryobi ONE+ string trimmers compared.
- Our other Black Friday guides cover electric lawn mowers, cordless leaf blowers and electric snow blowers.
Sources
- U.S. Environmental Protection Agency, “Used Lithium-Ion Batteries”, https://www.epa.gov/recycle/used-lithium-ion-batteries (opened 20 October 2026).
- Texas A&M AgriLife Extension, “Lawn Maintenance Safety”, https://agsafety.tamu.edu/files/2011/06/LAWN-MAINTENANCE-SAFETY3.pdf (opened 20 October 2026; undated).
- Virginia Cooperative Extension, Virginia Tech, “Lawn Care: Powered Hand Tool Safety”, Publication BSE-97P (2019), https://accomack.ext.vt.edu/content/dam/pubs_ext_vt_edu/BSE/BSE-41/BSE-97.pdf (opened 20 October 2026).
