The 18-volt Worx GT WG150 cordless trimmer (sometimes listed as the WG150.1) has a straight shaft, but the cutting head tilts for easier trimming access on slopes and under trees and shrubs. This trimmer comes with a choice of batteries: a nickel-cadmium (Ni-Cd) battery, which comes with a one-hour charger; or a lithium-ion (Li-ion) battery, which weighs less and holds its charge better.
Users like the Worx GT WG150's low weight of only 7 pounds and its adjustable handle. The downside is that owners say it doesn't have enough power to tackle heavy yard work and the battery runs down quickly. We also saw complaints about problems with the automatic line feed. For users who prefer a cordless trimmer, it's probably worth spending a little more on the top-rated Black & Decker NST2118 (*Est. $85) .
The Worx GT WG150 has been subjected to hands-on testing by ConsumerReports.org, ThisOldHouse.com and the National Home Gardening Club, where volunteer testers review this trimmer. We also found extensive owner feedback at retail sites, including Amazon.com and Sears.com.
Editors include the Worx GT WG150 among the 16 cordless string trimmers they subject to detailed testing. Each trimmer is rated on its performance at trimming, edging and taking down tall weeds, as well as overall handling and ease of use
Review: String Trimmers, Editors of ConsumerReports.org, Last updated May 2012
Volunteer testers report on their test use of the 18-volt Worx GT WG150 cordless trimmer, giving it high marks overall. However, the write-up isn't very detailed: It's just a summary of the trimmer's features and a couple of comments from users. It's also not clear just how reliable these comments are, since the manufacturer supplies the products to be tested, and only one product on the site receives less than 8 points out of 10 from users.
Review: WORX WG150 18V Grass Trimmer, Contributors to GardeningClub.com
3. This Old House
ThisOldHouse.com readers with various levels of lawn-care experience test four cordless string trimmers equipped with nickel-cadmium (Ni-Cd) batteries. The Worx GT WG150 receives positive feedback from a seasoned landscaper, who says the trimmer's built-in guide wheels "made it easy to trim just the right amount of grass and not gouge the lawn."
Review: Cordless String Trimmers, Sal Vaglica, May 2009
More than 300 users give the Worx GT WG150.1 an average rating of 3 out of 5 stars. Their main complaints are that the trimmer is underpowered and the automatic line feed doesn't work properly. However, users do say they like the trimmer's ergonomics, low weight and quiet operation.
Review: WORX GT WG150.1 10-Inch 18-Volt 2-in-1 Cordless Electric Grass Trimmer/Edger, Contributors to Amazon.com
The Worx FT WG150 earns a better rating here than it does at Amazon.com: an overall 4 stars out of 5 from about 50 users. Although there are a few complaints about low power and short battery life, most users find it easy to handle and quite adequate for "a kept up front and back yard."
Review: Worx WG150 18V Cordless 10-in Straight Shaft String Trimmer / Edger, Contributors to Sears.com
The 50 or so reviews we found for the Worx GT WG150 at Lowes.com are weaker than those at Amazon.com, with an overall rating of 2.8 stars. While some owners praise the trimmer's quality, others complain about durability and short battery life.
Review: WORX 10" 18-Volt Cordless String Trimmer, Contributors to Lowes.com