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) > Please Note: Conventional Batteries Are Shipped Dry