Abstract: An apparatus including a reservoir mounted for gravity feed overlying an associated battery, wherein the battery includes a plurality of cell openings, with a valve member mounted within each cell opening, wherein each valve member is in fluid communication with a reservoir. Each valve member includes a reciprocatable indicator mounted within the valve member extending into the cell, wherein the indicator member includes a lower float portion to direct an indicator member reciprocatably within a transparent portion of the valve for visual indication of a need or lack thereof for additional water to be directed into an associated cell of the battery.