In a mower (10) driven by a pair of electric motors (15), a battery (16) forsupplying electric power to the electric motors is positioned in a spacesurrounded bythe electric motors and a chute (30) for forwarding grass clippings to a grasscollectionbag (23). The chute extends rearward with an upward slant, and is bent in sideview insuch a manner that a lower part has a steeper incline than an upper partthereof.