Most battery-powered push mowers are best suited to a postage-stamp-size lawn, but packing the first-ever 56-volt lithium-ion battery, the Ego LM2001 can handle up to three-quarters of an acre of grass. The mower's 19.5-inch-wide blade spins at 3,300 rpm, cutting up to 45 minutes per charge; a full recharge takes just 30 minutes. An LED headlight means you can also use this quiet mower after dark, but the best trick of all is revealed when you're done cutting: The collapsible folding-handle design lets the mower sit up for storage, so it hugs the wall and saves you valuable garage-floor space. [$499;]