For power tools, battery technology seems to be making inroads and moving an increasing number of products into the realm of emissions-free, cordless technology. Yard tools have been understandably delayed, since the bettery power and sustained use periods make it difficult to transition over to a reliable, rechargeable solution. Black & Decker is still at the forefront, however, and has released a new 18V String Trimmer & Edger (Model NST2018) that eliminates gas in favor of NiCd batteries. While clearly more convenient than a corded solution, the real question is whether or not the power and usability will cause anyone not paranoid about emissions to switch to the new technology. Our guess is that it may take a few more product iterations before mainstream users pick up these new cordless tools over their more traditional gas-powered counterparts.