Abstract: A battery tray that includes a system for controlling the flow of fluid is provided. The battery tray includes a base surface having a retention cup formed therein. The retention cup collects aqueous sulfuric acid discharged from the battery. The retention cup includes a vent or slot formed therein to allow its contents to evaporate over time. A system of troughs and channels are included in the base surface to direct fluid flow towards the retention cup. The battery tray effectively controls the flow of aqueous sulfuric acid so that the acid does not contact neighboring vehicular components. If aqueous sulfuric acid contacts metal vehicle components it will promote corrosion of the components.