A system for installation of traction batteries for a vehicle having a chassis comprising at least one load-carrying frame member, the system comprising: - a front bracket member adapted to be secured to and project from a frame member of the vehicle, - a rear bracket member adapted to be secured to and project from the frame member of the vehicle so that the rear bracket member is spaced apart from the front bracket member for receiving a traction battery (16, 16a, 16b) between the front bracket member and the rear bracket member, wherein each one of the front bracket member and the rear bracket member comprises a respective sliding surface, - a first slider adapted to be connected to a front side of a traction battery (16, 16a), and - a second slider adapted to be connected to an opposite rear side of the traction battery (16, 16a), wherein the first slider is adapted to be mated with the sliding surface of the front bracket member and the second slider is adapted to be mated with the sliding surface of the rear bracket member subsequently to the first slider and the second slider having been connected to the traction battery (16, 16a), thereby enabling the traction battery (16, 16a) by means of the connected sliders (40, 44) to be received by the front and rear bracket members (12, 14) and be moved towards the frame member of the vehicle, characterized in that each one of the front bracket member and the rear bracket member comprises a securing portion for securing the bracket member (12, 14) to the frame member of the vehicle, wherein each one of the front bracket member and the rear bracket member comprises two vertically spaced arm portions (30, 32), namely a lower arm portion and an upper arm portion, both projecting from the securing portion, wherein each one of the lower arm portion and the upper arm portion is provided with said sliding surface. - a front bracket member adapted to be secured to and project from a frame member of the vehicle, - a rear bracket member adapted to be secured to and project from the frame member of the vehicle so that the rear bracket member is spaced apart from the front bracket member for receiving a traction battery (16, 16a, 16b) between the front bracket member and the rear bracket member, wherein each one of the front bracket member and the rear bracket member comprises a respective sliding surface, - a first slider adapted to be connected to a front side of a traction battery (16, 16a), and - a second slider adapted to be connected to an opposite rear side of the traction battery (16, 16a), wherein the first slider is adapted to be mated with the sliding surface of the front bracket member and the second slider is adapted to be mated with the sliding surface of the rear bracket member subsequently to the first slider and the second slider having been connected to the traction battery (16, 16a), thereby enabling the traction battery (16, 16a) by means of the connected sliders (40, 44) to be received by the front and rear bracket members (12, 14) and be moved towards the frame member of the vehicle, characterized in that each one of the front bracket member and the rear bracket member comprises a securing portion for securing the bracket member (12, 14) to the frame member of the vehicle, wherein each one of the front bracket member and the rear bracket member comprises two vertically spaced arm portions (30, 32), namely a lower arm portion and an upper arm portion, both projecting from the securing portion, wherein each one of the lower arm portion and the upper arm portion is provided with said sliding surface.