Buyers searching for the best cordless string trimmer want a tool that runs without a cord, so runtime per charge, weight and cutting swath matter most. Battery voltage and energy in Wh show how much power is stored. Weight tells you how tiring long edging will be. A wider swath means fewer passes. Many makers skip some specs, so we note the gaps. We put 19 products on one spec sheet and ranked them by specification score. Read the reviews, then check the buying guide.
Quick answer
Ranked from 19 string trimmers that met our standard, compared on runtime, weight, cutting width.
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Highest voltage, battery energy and cutting swath of all 15 products, with a 5 year warranty.
Two 2.0Ah batteries are included and it weighs 5.27 lb.
At 3.28 lb it is the lightest among the models that list weight.
| Spec | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Best Scoreout of 100 | 62 | 63 | 56 | 54 | 56 | 55 | 51 | 57 | 51 | 45 |
| Power source | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) | Battery (cordless) |
| VoltageV | 56 V (best in row) | 21 V | 24 V | 20 V | 20 V | 20 V | 18 V | 40 V | 21 V | — |
| Battery energyWh | 140 Wh (best in row) | — | 96 Wh | 40 Wh | 40 Wh | 40 Wh | 72 Wh | — | — | — |
| Runtime per chargemin | 45 min | — | — | — | — | — | 63 min (best in row) | — | — | — |
| Cutting swathin | 15 in (best in row) | 12 in | — | 12 in | 12 in | 12 in | 13 in | 13 in | 12 in | 12 in |
| Line diameterin | 0.095 in (best in row) | — | — | 0.065 in | — | 0.065 in | 0.065 in | — | — | — |
| No-load speedRPM | — | 9000 RPM | 11000 RPM (best in row) | — | 6200 RPM | 7600 RPM | — | 8500 RPM | 9000 RPM | 9000 RPM |
| Weightlb | 7.4 lb | 5.3 lb | 3.3 lb (best in row) | 3.5 lb | 5.7 lb | 5.5 lb | — | 7.8 lb | 5.3 lb | — |
| Line feed type | Bump feed | Auto feed (best in row) | — | Auto feed (best in row) | Auto feed (best in row) | Push-button feed | — | Auto feed (best in row) | Auto feed (best in row) | Auto feed (best in row) |
| Converts to edger | — | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pivoting head | — | — | — | Yes | — | Yes | — | — | — | Yes |
| Battery and charger included | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | Yes (best in row) | No |
| Warrantyyears | 5 years (best in row) | — | — | — | — | — | 3 years | — | — | — |
We reviewed 26 string trimmers and kept only the 19 that pass every check below. Those are ranked by a Best Score built from spec fit for this job, sales rank.
These reviews cover our top five picks. They are based on specifications and listing information only.
EGO ST1502SA leads on runtime and cutting width
The EGO POWER+ ST1502SA leads our ranking, and the specs show why. It runs on a 56 V battery rated at 140 Wh. That is the highest voltage and the highest battery energy among all 15 products on this page. For a cordless trimmer, a bigger battery means more time cutting before you stop.
The listing gives up to 45 min of runtime per charge on the included 2.5Ah battery. Only two other products on this page list runtime at all, so a direct comparison is limited. The 15 in cutting swath is the widest of the 15 products, which means fewer passes along a long fence line.
Line is 0.095 in, the thickest listed here, and the head is bump feed with a rapid reload design. At 7.4 lb it is not light. Expect it to feel heavier during long edging than the lighter models. The warranty is 5 years. The kit includes the battery and charger. The listing also mentions variable speed and a brushless motor.
VerdictThe EGO ST1502SA is the pick for long runtime and a wide path if you can handle 7.4 lb.
HortiHub HG0556-AOR is light but short on runtime
The HortiHub HG0556-AOR ranks second on our spec sheet. It weighs 5.27 lb, lighter than the EGO but heavier than the ALSO GO and goodjob models. The 12 in cutting swath matches the narrowest on the page. Auto feed means you do not bump the head to release line.
Runtime is the weak point. The maker does not publish a runtime spec, but the listing says about 15-20 minutes per charge from each of two 2.0Ah batteries. Both batteries are included, so you can swap one for the other. The maker does not publish battery energy, so pack size cannot be compared directly.
The 9000 RPM no-load speed is listed, which describes head speed with no grass in the way. The unit also converts to an edger. The listing adds goggles and tool-free assembly, and says the handle is adjustable and the guard blocks debris. A 21 V system is lower than the EGO at 56 V. Line diameter is not published.
VerdictThe HortiHub is a light, two-battery option for small yards, not for long jobs.
ALSO GO is the lightest here, but really a brush cutter
At 3.28 lb, the ALSO GO weed wacker is the lightest among the models that list weight. It ranks third on our list. For long edging sessions, less weight on your wrists and shoulder is a real benefit. It runs on 24 V with a 96 Wh battery and reaches 11000 RPM no-load.
It does not fit the keyword as cleanly as the others. The listing sells it as a 5-in-1 brush cutter and edger with interchangeable blades, and the maker does not publish cutting swath, line diameter or runtime. If you want a pure string trimmer with a known path width, check the other picks.
Two 24 V 4.0Ah batteries and a quick charger come in the box. A wheel kit, gloves and goggles are also included. The shaft adjusts from 33 in to 47 in, and the head angles for slopes and corners. The listing also mentions dual safety switches and a 650W motor.
VerdictA light, flexible tool, but check the missing swath and runtime before you buy.
goodjob GB-DST26A-2MG is light with a pivoting head
The goodjob GB-DST26A-2MG weighs 3.5 lb, which is close to the lightest among listed models at 3.28 lb. It ranks fourth on our list. It cuts a 12 in swath with 0.065 in line, which matches the thinnest line on the page. Thin line suits light grass and weeds better than thick brush.
This model is the only one of the five reviewed here with a pivoting head. The listing says it pivots 180°, which helps under fences and around trees. It also converts to an edger with a twist, and the line feeds automatically. The listing also notes tool-free assembly and a built-in safety switch.
Power is modest. It runs on 20 V with a 40 Wh battery, the lowest battery energy on the page, tied with three other models. The listing gives 40-60 minutes of runtime with two 2.0Ah batteries, and says it varies by load. Both batteries and a charger are included. Cutting speed and warranty are not published.
VerdictA light, easy-to-angle trimmer that suits small yards more than heavy cutting.
BLACK+DECKER LST300 is simple but slower at the head
The BLACK+DECKER LST300 is a basic 20V MAX 2-in-1 trimmer and edger. Its 6200 RPM no-load speed is the lowest among the models that list it. A lower head speed can mean slower work on dense growth. The listing credits its POWERDRIVE transmission for moving more power to the line. It ranks fifth on our list.
It weighs 5.7 lb, heavier than the HortiHub at 5.27 lb and the goodjob at 3.5 lb, but lighter than the EGO at 7.4 lb. The cutting swath is 12 in, the same as the HortiHub and goodjob. Line feeds automatically, so there is no bumping.
Power comes from a single 2.0Ah battery, and the listing says it gives 33% more runtime than the older LBXR20 pack. Its 20 V, 40 Wh pack is on the small end. The maker does not publish a runtime in minutes or a line diameter. The listing says it converts from trimmer to edger in seconds.
VerdictA simple trimmer and edger for small jobs, held back by low head speed and one battery.
Best among the reviewed tools
Battery energy in Wh tells you how much charge the pack holds. Runtime per charge shows how long you can cut. Only three of the 15 products list runtime, so use Wh to compare the rest. Higher Wh generally means longer work between charges. A second battery adds more time.
Weight decides how tired your arms get. Among the models that list it, weights run from 3.28 lb to 7.8 lb. A lighter trimmer helps on long edging jobs. A heavier one often carries a bigger battery, as the 7.4 lb EGO shows with 140 Wh.
Cutting swath is the width of the cut circle. A wider swath means fewer passes. The EGO lists 15 in, the widest on the page. Most that list it show 12 in or 13 in. Thicker line, like the EGO's 0.095 in, handles tougher weeds than 0.065 in line.
Many models here convert to an edger, and some have a pivoting head for slopes and tight corners. Auto feed advances line for you, while bump feed needs a tap on the ground. Check whether the battery and charger are included, since the SHOHO leaves them out.
It depends on battery size. The EGO ST1502SA lists up to 45 minutes and the CRAFTSMAN lists up to 63 minutes. The HortiHub lists about 15-20 minutes per battery. Many makers do not publish runtime, so compare battery energy in Wh instead.
Among the models that list weight, the ALSO GO weed wacker is lightest at 3.28 lb. The goodjob lists 3.5 lb. The heaviest listed is the BLACK+DECKER LST136 at 7.8 lb. Lighter models reduce strain over long sessions.
Voltage alone does not tell the whole story. Battery energy, no-load speed and line diameter matter too. The 20 V models here that list battery energy show 40 Wh, and 0.065 in line where given, which suits light grass. For thicker growth, the 56 V EGO lists 140 Wh and 0.095 in line.
Many can. The HortiHub, ALSO GO, goodjob, BLACK+DECKER LST300 and WORX all list edger conversion. The WORX and goodjob also list a pivoting head. The EGO ST1502SA does not list edger conversion, so check before you buy if edging matters.
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