Abstract: A battery box including parallel four-bar linkage structure for permitting a battery to be swung downwardly and outwardly, from an operative position wherein the battery is protected by the implement frame, to a maintenance position wherein easy access is provided to the battery for inspection and maintenance. The parallel linkage structure maintains the battery horizontal and serves as a self-locking mechanism at the desired maintenance position. A finger guard on the four-bar linkage also acts as a stop to limit travel of the battery when the battery is returned to its normal operative position.