Universal Battery Sealed Lead-Acid (SLA) batteries offer superior performance and deliver exceptional power when you need it most. Universal Battery SLA batteries are classified as non-hazardous and non-spillable by DOT (Department of Transportation), IATA (International Airline Transport Association), and ICAO (International Civil Aviation Organization.) California residents, please see Prop 65 Warnings. UPG products have set the industry standard for quality and dependability.