A battery operated weed eater can make trimming weeds and grass more comfortable and efficient. Instead of dragging 
around a cord which gets caught on everything, users can walk freely using these battery powered units. A powerful and long lasting battery pack turns an electric motor which spins the cutting blades. Grass and other plant materials are trimmed down to size in an instant. The power is controlled by a single speed handle trigger. Unlike gas string trimmers which are loud and difficult to manage, battery powered models are lightweight and easy to carry. Most of these tools serve the dual purpose of trimming and edging, tipping the tool over to achieve a crisp lawn edge.
Features
Battery operated weed eaters have a range of features which a new buyer should consider. Additional features like a telescoping handle and edge guard can cost a bit more, but can improve the quality of the finished work and increase comfort.
The voltage of the trimmer largely determines the power of the tool. If you have a large lawn which can get out of hand quickly, a high voltage (36v) tool is recommended. An extra battery pack is always a good idea if you anticipate working for extended periods of time. Chargers are included which can charge up a pack in a few hours. These NiCd batteries are reliable and long lasting.
A telescoping handle is important for people both short and tall. Dialing in the length of the handle to match your height makes all the difference in comfort.
The cutting width of any battery operated weed eater can be easily determined by looking at the diameter of the blades. This number is given in inches, and is usually around 10-12. A larger cutting surface means that more grass can be cut in any given time. If you will be using the trimmer to trim your entire lawn, a large cutting surface is recommended.
An auto feed spool is a great feature which can save you the hassle of tapping the spring mechanism ever time you need more line. Auto feeding uses centrifugal force to pull out new string automatically.
Portability
Cordless string trimmers are ideal for people who can’t stomach the smell, sound and maintenance of a gas powered tool. The lightweight and simple nature of these tools makes them safe for people of all backgrounds to use. Users can can the confidence that they are reducing their environmental impact by not spewing fumes into the air.
