Best Cordless Trimmer Reviews for 2018
One of a landscapers favorite tools, string trimmers are essential for proper lawn care.
There are 3 different types of trimmers - gas-engine powered, electric edge trimmers with power cords, and battery-powered weed eaters which are typically recharged after each use.
It's important to examine the different makes and models of cordless trimmers available since a wrong choice might lead to lawn damage, injury, or expensive battery replacement. This article will compare and evaluate 5 of the best models of battery powered trimmers available in the marketplace today.
Here are my best battery powered weed eaters:
BLACK+DECKER LST136W 40V MAX Lithium Ion String Trimmer: best for general homeowner use.
DEWALT DCST970X1 FLEXVOLT 60V MAX String Trimmer: best for larger yards.
WORX 32-Volt GT2.0 String Trimmer/Edger/Mini-Mower with Tilting Head: best combo string trimmer and edger.
GreenWorks Pro ST80L210 80V 16-Inch Cordless String Trimmer: best for commercial type applications.
BLACK+DECKER LSTE523 20V Max Lithium POWERCOMMAND Easy Feed String Trimmer/Edger: best for smaller yards / lighter work.
Top Rated Cordless Weed Eaters
GreenWorks Pro ST80L210
HOW TO USE A CORDLESS STRING TRIMMER
The first thing to remember about using a cordless string trimmer is spin direction. If your trimmer spins clockwise, it throws out material from the right side of the machine and cuts the best with the left side. If you're walking along a low fence, curb, or walkway, the left side of your body should be kept closer to the work, so the tool head will be able to both cut and eject toward the right. Naturally, if you have a trimmer that spins counter clockwise, it will discharge materials from the left-hand side of the tool and will cut best with its right side.
There are several different cutting techniques to remember - scything, screeding, edging, and tapering. Keep in mind one important fact - the cutting power is located at the end of the string. Scything is used when you're working up against something that you either can't walk easily along or whenever you're working in some tall grass. Bring your trimmer out of and into the work using a slight shallow U motion. Overlap this scythe motion to even out the cut.
Screeding is used for weeds and grass that are growing in paths, driveways, and sidewalk cracks. Tip your cordless trimmer so that its string-tips are lightly bouncing off the pavement; next, cut flush into the hard surface of the weed's base. Remember that if your cutting angle is too shallow, you won't be cutting effectively. If your cutting angle is too sharp, the string won't be able to cut the plant base evenly.
For edging, turn your cordless trimmer so that the string is vertical, and walk the tool directly into the just cut path. The tool will pull up debris, rocks, and dirt doing this, but this is expected in a yard that hasn't been edged before. Then, on a weekly basis, slowly 'sneak up' on the exact edge that you want, and it will be easy to maintain after that.
Tapering, or holding the tool, so it hits the grass at a very slight angle, is preferred when you're working along a fence, retaining wall, curb, or tree. You will be cutting less grass with the tapering method, and leaving a tight edge which will blend into the height of the grass you've just mowed for a nice, clean look.
HOW TO DETERMINE THE BEST CORDLESS WEED WHACKER TO BUY
There are many considerations when deciding on which cordless weed whacker is the best purchase for you:
HOW MUCH SHOULD I EXPECT TO PAY?
Usually, the finest cordless string trimmers on the market will cost more than your typical gas-powered model. Of course, with a stringless trimmer you won't have any of the expenses of oil or gas costs or engine maintenance, so your initial cost is most often offset by a gas trimmer's ongoing expenses. A good cordless trimmer will cost anywhere from about $125 to $250. Online reviewers state that buying a cordless trimmer if a cost effective way to trim and edge your yard, and they are very pleased with the amount of power these trimmers provide.
DIFFERENCE BETWEEN CHEAP AND EXPENSIVE MODELS
What is the difference between cheap string trimmers and more expensive models? There are a number of points to consider:
DO I NEED A GAS TRIMMER INSTEAD?
If you have a large yard and need 16-18 inches of cutting swath, and don't mind the louder noise, heavier weight, air pollution, and the necessity of keeping both oil and gas on hand, then a gas-powered model might be the right choice to make. For a larger yard, you'll need to look for a two-cycle machine with a separate choke, primer, and throttle controls. If you're looking to tame a jungle, a four-cycle engine trimmer will be necessary (they're easier to start, pollute less, are much quieter, and don't need an oil-gas mix).
You might want to look at a gas trimmer instead of a cordless string trimmer if you have experienced problems with string trimmers before.
IS RPM IMPORTANT?
A general rule - For cordless trimmers, the higher the battery voltage, the more RPMs that device can achieve. The higher revolutions per minute that your weed whacker produces will give you increased cutting power. An 80V battery, for instance, will produce an equal amount of power as a 32cc gas engine.
HOW MUCH POWER DO I NEED?
The cordless trimmers being reviewed here today all have lithium-ion batteries, which are the most popular kind of rechargeable batteries on the market today. These batteries are a lightweight alternative to heavier Ni-cad batteries, and the newest ones are so much improved that they'll give a tank of gas a run for its money.
Lithium-ion batteries come in several different voltages - from 18 volts all the way up to 82 volts. A 40V MAX 4.0Ah battery will provide you with 120 watt-hours of energy. The cordless trimmers reviewed here today range from a 20V battery providing 7,200 RPM to an 80V battery. A 20V battery is sufficient for most trimming requirements of a small to medium-sized yard (approximately 20-30 minutes of actual cutting). A 40V battery with a PowerCommand dial allows the operator to choose between maximum power for tackling thick weeds (8,500 RPM) and maximum runtime (6,500 RPM) to increase the life of the battery. An 80V battery will provide about 45 minutes of run time, which is good for larger yards.
HOW TO MAINTAIN YOUR STRING TRIMMER
All string trimmers will have to have the trimmer line replaced at some point. The way to replace the line will depend on whether the trimmer is a single-line model or a dual-line model, and if you wind the line(s) yourself, use a spool that is pre-wound, or use pre-cut pieces of line. In all cases follow the instructions from the manufacturer carefully and use the trimmer line that is specified.
While you are replacing the line, make sure to clean the area circling the trimmer head and the cutting shield. Inspect the machine for wear and tear. Make sure only to use approved replacement parts.
Before storage, allow your trimmer to cool, brush off any debris or clippings, and apply any necessary lubrication. All metal surfaces can be sprayed with a light oil to prevent rust. Store it in a dry, well-ventilated area, out of children's reach.
After evaluating a large number of cordless trimmers, our recommendation is the Black & Decker LST135W 40V Max Lithium Ion String Trimmer. A majority of reviewers favored this tool above all other cordless trimmers for a variety of reasons. They cited its powerful, long-lasting battery, the excellent feed mechanism, its light weight, and its ability to chew up light weeds and grass QUIETLY. Reviewers also liked its PowerDrive transmission, its PowerCommand dial, its automatic feed spool, and its easy convertibility from trimmer to edger.