Powered by an 18-Volt NiCad battery, this Black & Decker NST2118 12-Inch 18-Volt Ni-Cd Cordless Electric GrassHog String Trimmer/Edger is perfect for medium to small yards. And … [Read more...] about Black & Decker NST2118 12-Inch 18-Volt Ni-Cd Cordless Electric GrassHog String Trimmer/Edger