• Battery powered cordless weed trimmers let you move about freely as you trim grass and non-woody weeds. You trade the limitations of a 20 minute or half hour charged battery life for the convenience of having no cord to watch and manage. The following cordless weed trimmers are lightweight, easy to handle, and have a number of other desirable features that rival powerful gasoline driven trimmers.
  
  

Black & Decker NST2018

• For grass and other light yard use, the Black & Decker NST2018 18 volt nickel cadmium (Ni-Cd) powered cordless trimmer is a popular choice. It weighs in at about 7 pounds and is equipped with two batteries. Its batteries are interchangeable with other Black & Decker 18-volt battery powered tools, as is its three hour battery charger. Its gear drive transmission is a feature common to gasoline power trimmers. It offers an automatic feed. Its cutting width is a 12-inch diameter. Its handle adjusts and shaft telescopes for greater maneuverability. It is warranted for two years. Its estimated retail price is about $100.
  
  

Black & Decker NST2036

• For power designed to rival gasoline powered trimmers, the cordless Black & Decker NST2036 is a next step up. This model employs a 36-volt nickel cadmium (Ni-Cd) battery. The motor is mounted high to offer easy-to-handle balance. Its trigger offers variable speeds and it has a gear drive transmission. Together, these features improve its efficiency for trimming weeds along with grass. It relies on a bump feed to release trimmer string. While the battery pack is powerful, its charge does not last significantly longer than batteries with less power. The product, which weighs in at 11.9 pounds, is warranted for three years, a warranty a full year longer than other Black & Decker cordless trimmers. Its estimated retail price is about $150.
  
  

Worx WG150

• The 18-volt Worx WG150 cordless trimmer can be found in both the WG150.1 version and the WG150.2 version with two batteries. It uses a one-hour charger and weighs in at about 6.8 pounds. Because the cutting head will tilt, this trimmer enables you to trim in those hard to reach locations and on slopes with relative ease. Its warranty is two years and its estimated retail price is about $100.
  
  

Worx GT WG151

• The 18-volt Worx GT WG151 is virtually the same as the WG150 except for its battery, which is Lithium-ion, also known as Li-ion. The lighter weight battery means this machine weighs about a pound and a half less than the WG150 with its nickel cadmium, or Ni-Cd, batteries. Li-ion batteries also hold their charge longer between uses and, because they have no cadmium, they are considered to be more friendly to the environment. The Worx WG151 is easy to start, is relatively quiet to operate and has good ergonomics, meaning that it is easy to use and handle. One version of the model, a WG151.5, is available with a charger that quick charges in about a half hour. The batteries function for about 15 or 20 minutes of trimming. Its estimated retail price is about $130.