Vehicle battery support platform assembly and cross tie alignment tool

1. Field of the Invention A battery and accessory support for use on a vehicle is disclosed for use particularly on a hybrid diesel/electric truck. Such a vehicle has a frame comprising a pair of longitudinally extending frame rails. The support includes a plurality of cross support members, each cross support member comprising an open channel rail, with the cross support members positioned under the frame rails oriented in parallel with respect to one another and perpendicular to the frame rails. For each cross support member there is a pair of vertical braces extending upwardly from the cross support member. Each pair of vertical braces is mutually spaced on its respective cross support member to bracket snugly the pair of longitudinally extending frame rails, and each vertical brace being attached to one of the frame rails to support the battery and accessory support. Alignment members are positioned across the ends of cross support members to support the parallel orientation of the cross support members. The alignment members each have a plurality of spaced protrusions for engaging the cross support members.