Yuasa conventional batteries are the industry standard and are engineered to protect against corrosion, withstand vibration and deliver high cranking power.* Suitable for many applications including motorcycles and riding mowers* Patented separators provide high cranking power* Thru-partition construction for maximum power* Sealed posts resist corrosion for long life* Polypropylene cover resists gas, oil and impacts* Heat-sealed and bonded fabrication resists seepage* Acid packs sold separately - Item # SO-ACID (21oz)