The goodjob 20V cordless trimmer is the clearest choice if low weight is your top priority: its listing states a 3.5-pound weight and includes two batteries. For convenient trimming and edging, consider the WORX or BLACK+DECKER 2-in-1 models. The 21V option includes two batteries and replacement spools, while the Greenworks model offers a wider 16-inch cutting path but does not list its weight in the supplied details.
| Product | Best for | Listed details |
|---|---|---|
| goodjob 20V | Buyers prioritizing low weight | 3.5 lb; two 2.0Ah batteries |
| WORX WG163 | Trimming and edging versatility | 12-inch; two batteries |
| BLACK+DECKER LST300 | Automatic line feeding | 12-inch; trim and edge |
| 21V cordless trimmer | Included spare line supplies | Two batteries; six spools |
| Greenworks 60V | Wider cutting path | 16-inch; 2.5Ah battery |
goodjob 20V Lightweight Cordless Trimmer
Best for: Buyers who want a battery weed eater with a specifically stated low weight. The listing describes this model as weighing 3.5 pounds, making it the strongest weight-focused match among these options. It also converts between trimming and edging, with a 12-inch cutting width.
Two 2.0Ah batteries and a quick charger are included. The listing claims up to 40–60 minutes of runtime, while noting that runtime varies with load. It uses .065-inch line and is described for grass and weeds.
Why it was selected: It is the only product here with a listed weight, plus its dual-battery kit may help extend a work session. Limitation: The claimed runtime is variable, and the listing does not provide a runtime guarantee for every yard or task.
WORX WG163 20V Trimmer And Edger
Best for: Buyers who want one tool for lawn trimming and edge cleanup. The WORX converts from trimmer to edger, has a 12-inch cutting width, and includes two 2.0Ah batteries and a charger.
Its Command Feed system supplies line at the push of a button, and the head tilts 90 degrees for sloped areas and hard-to-reach spots. Those features make it a practical choice for yards with borders, uneven ground, or places that require different working angles.
Why it was selected: It combines two yard-care functions with adjustable positioning and included batteries. Limitation: The supplied product details do not state the tool’s weight, so buyers seeking the lightest possible model should compare its actual weight before choosing.
BLACK+DECKER LST300 20V Trimmer
Best for: Buyers who prefer automatic line feeding rather than manually bumping the trimmer head. The LST300’s Automatic Feed Spool releases line when needed, and the tool converts between trimming and edging.
The listing specifies a 12-inch steel deck and POWERDRIVE transmission, which is described as delivering more motor power to the cutting string. It also states a 6,200 RPM figure. A battery and charger are included.
Why it was selected: Its automatic feed and 2-in-1 design address two common convenience needs. Limitation: No tool weight is given in the supplied information, so its suitability for buyers focused strictly on weight cannot be confirmed from these details.
21V Cordless Trimmer With Two Batteries
Best for: Buyers who value included replacement line and a second battery. This 21V model has a 12-inch cutting width, automatic line feed, two speed modes, two 2.0Ah batteries, and six replacement spools.
It is described as a 2-in-1 string trimmer and edger. The included spare spools may be useful for buyers who want line supplies in the package rather than sourcing them separately.
Why it was selected: Its kit includes multiple batteries and replacement spools alongside edging capability. Limitation: The supplied details do not state its weight, so it cannot be ranked as the lightest option based on available specifications.
Greenworks 60V 16-Inch Cordless Trimmer
Best for: Buyers who want a wider cutting path and are comparing higher-voltage options. The supplied product name identifies a 60V cordless string trimmer with a 16-inch cutting width and a 2.5Ah battery.
The wider stated swath may suit buyers who want to cover more ground per pass than with the 12-inch models in this list. However, the available details do not specify its weight, edging function, line-feed system, or runtime.
Why it was selected: It adds a wider-cutting alternative to a roundup focused mainly on lighter, narrower tools. Limitation: It is not possible to confirm that it is lightweight or suitable for edging from the supplied product information.
Buying Guide: How To Choose A Lightweight Battery Weed Eater
Which specification matters most for low weight?
Compare the complete tool weight, including the battery, rather than relying on words such as “lightweight.” Among these listings, the goodjob model is the only one with a stated weight: 3.5 pounds. The other provided details do not give enough information to make a direct weight ranking.
Should you choose a 12-inch or 16-inch cutting width?
A 12-inch swath is listed for the goodjob, WORX, BLACK+DECKER, and 21V models. Greenworks lists a 16-inch swath. A wider path can reduce the number of passes over an area, while a narrower path may be easier to position around tight edges. Match the width to your yard layout and handling needs.
How many batteries do you need?
Two batteries are included with the goodjob, WORX, and 21V models. BLACK+DECKER lists a battery and charger, while Greenworks lists a 2.5Ah battery. A spare battery can let you swap packs during a job, but actual working time depends on use and conditions.
Is automatic line feed useful?
Automatic feed reduces the need to manually advance line. BLACK+DECKER identifies its Automatic Feed Spool, and the 21V model lists automatic line feed. WORX instead specifies push-button Command Feed. Check which feeding method you prefer, and consider the line and replacement-spool details before buying.
Frequently Asked Questions
What is the lightest battery weed eater in this selection?
The goodjob 20V model is the only one with a listed weight, at 3.5 pounds. The supplied specifications do not confirm whether it is lighter than every other model.
Which models include two batteries?
The goodjob, WORX WG163, and 21V cordless trimmer listings specify two batteries. Check the product listing for the exact package contents before purchase.
Which options can trim and edge?
The goodjob, WORX, BLACK+DECKER, and 21V models are described as converting between trimming and edging. The supplied Greenworks details do not state whether it has an edging function.
Does a wider cutting swath mean a lighter tool?
No. Cutting width and tool weight are separate specifications. Greenworks lists a 16-inch swath, but the supplied details do not provide its weight.