NOVELTY - The packaging (1) has a positive conductor plate (4) electrically coupled to negative ends of longitudinal battery cells (2). A liquid cooled cooling plate is thermally coupled to the conductor plate. A gap filler layer is arranged between the conductor plate and the cooling plate. The gap filler layer includes electrically insulating material and thermally conducting material. The gap filler layer has a rugged surface and foam material with glass fiber reinforcement. A graphite foil (10) is arranged between the ends of the battery cells and the conductor plate.    USE - Battery packaging for use in a vehicle e.g. electric vehicle and hybrid vehicle, to accommodate longitudinal battery cells.    ADVANTAGE - The packaging has an O-ring to build up force on each battery cell in an assembled state of the packaging along lower direction, thus improving contact of a lower end of the battery cells with a negative conductor plate. The graphite foil improves contact with the negative conductor plate. The packaging allows ventilation channels to be extend across a set of ventilation openings in the conductor plate, so that hot gasses from a safety vent of one battery cell can be guided reliably from the other battery cell through the ventilation openings of the frame and the conductor plate and through the ventilation channel to outside of the packaging, thus avoiding heating up other battery cells in the packaging and preventing cell propagation. The battery cells are held at positive and negative ends of the battery cells only such that minimal mass and volume of holding structures and the frames can be achieved, so that weight and cost of the packaging can be reduced.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of a vehicle battery packaging.    Vehicle battery packaging (1)    Longitudinal battery cells (2)    Positive cover (3)    Positive conductor plate (4)    Upper frame (5)    O-ring (7)    Lower frame (9)    Graphite foil (10)    Negative conductor plate (11)