Abstract: A battery pack for the propulsion of electric road, boat or aircraft vehicles, includes a plurality of battery modules. The battery cells of the pack are arranged with their planes oriented horizontally, according to a “lasagna” configuration, over a lower tray. Superimposed layers of cells are provided, separated by aluminum sheets, which hinder the propagation of heat and flame. Between the cells there are tubes of a circuit for a coolant or alternatively a cooling panel is provided under the cell layers. The cells have one side glued to an adjacent aluminum sheet and the opposite side also glued to an adjacent aluminum sheet or covered by a pad of elastically deformable material. The terminals of some cells side-by-side are connected to each other by means of bars held in position by clamps, with an arrangement such as to simplify the assembly procedure.

Abstract: A ride-on vehicle, in particular a bicycle or a three-wheel vehicle, more in particular a purely electric or pedal assist bicycle or three-wheel vehicle, which includes an electrically-driven air conditioning unit is carried by the frame of the vehicle. An auxiliary supporting structure is connected to the frame of the vehicle , and in one example includes two rear uprights transversally spaced apart from each other, extending above the saddle, and continuing into two upper beams and then into two front uprights, whose lower ends are connected to a frame portion which extends in front of the handlebar. there An air guiding structure is associated to the auxiliary supporting structure and is in communication with an outlet of the air conditioning unit and has one or more outlets for the flow of conditioned air, which are configured for directing jets of conditioned air towards and/or around a body of a user.