Caterpillar Valve-Regulated Lead Acid (VRLA) batteries are available in Gelled (GEL) Electrolyte, Starting/Deep Cycle Marine or Recreational Use Battery (could be used for Gen-Sets or UPS type applications requiring a sealed battery), and Absorbed Glass Mat (AGM) Batteries, Designed for High-rate Uninterruptible Power Supplies (UPS) or Standby Applications.