Specifications include, but are not limited to: 64 Power Safe 12v155FS Batteries. No substitutions. 12V, 155 Ah, low profile, front terminal, valve regulated, lead acid (VRLA) battery. 561mm x 125mm x 283 mm. Container and cover are made from UL94 V-0 flame retardant ABS material. Front terminal connections and Terminals have brass inserts with a high compression grommet.