Ego Power+ String Trimmer

The idea of a battery-powered trimmer has always been enticing: There's no cord-yanking or exhaust, and it's virtually maintenance-free. Most, however, lack serious muscle. Not anymore. With its 56-volt battery, the Ego Power+ String Trimmer offers 40 percent more juice than the recent crop of battery trimmers, and it cuts a 12-inch-wide swath through tall grass, weeds, and light brush for about 45 minutes per charge. [$199; egopowerplus.com]