To identify the manufacturer, ask the dealer or check the battery's Material Safety Data Sheet (MSDS). The manufacturer's code number on the battery will also identify the manufacturer. For differentiating quality, features or warranty periods, battery manufacturers will sometimes have product lines within a trademark or brand, for example, Bronze, Silver, Gold, Platinum, Titanium, Premium, Heavy Duty, Commercial, Standard, Plus, Turbo, Calcium, Classic, Maintenance Free (MF), etc. They will also contract with other manufacturers to build and private label batteries to complete their product lines, for example, specialty batteries, that are not economically feasible to build themselves. Motorcycle batteries are listed in the Powersports starting classification and motive, traction, standby, stationary, solar, and Valve Regulated Lead-Acid (VRLA) AGM and Gel Cell. Sealed Lead-Acid (SLA) batteries are classified as deep cycle batteries.