Quantity: 2 XTR12-155, 155Ah each. These heavy-duty AGM batteries are constructed with special plates and top-tier plate separators, endowing them with superior performance and unparalleled deep cycle capabilities. They feature an AGM electrolyte suspension system and are made with custom-built, military-grade alloys. These batteries boast rapid charge delivery capabilities and an extremely low self-discharge rate. They are safe for use in confined spaces as they do not spill or emit toxic fumes. Their sealed, non-spillable, and non-hazardous construction enhances safety. The deep cycle capabilities are significant, and VMAX batteries are noted for their 99% gas recombination capabilities. They require maintenance-free operation, aside from periodic surface cleaning and post-tightening.