If you're in the market for a weed eater or string trimmer, you might consider Ryobi's 40V or 18V options. But how do these two products compare to eachother?

A battery-powered string trimmer that has the oomph of a gas model is worth a look on that basis alone. Factor in that you can swap a blower, edger, or cultivator with the trimming head of the Ryobi ...