Mighty Max ML35-12GEL — 12V 35AH GEL Replacement Battery for ActiveCare Catalina (4 Pack)

ML35-12GEL is a rechargeable, maintenance-free 12V 35AH GEL battery sold as a 4 pack and compatible with ActiveCare Catalina. Designed as a direct replacement, it delivers reliable power and easy upkeep. Longer charge retention vs AGM: These GEL batteries have a slower self-discharge rate than AGM batteries, so they hold their charge longer when not in use — a practical upgrade for storage or intermittent applications. Built for wide temperature performance: Mighty Max GEL technology maintains consistent output across a broad range of climates. The cells resist temperature-related power loss, providing steady energy whether operating in summer heat or winter cold. Rugged, safer construction: The batteries use a thick, non-spillable gel paste that minimizes leaks and acid fumes. That gel composition also improves resistance to vibration and shock, making the units well suited for demanding environments. Trusted brand and proven advantages: Mighty Max has a reputation for dependable batteries. With advanced GEL design, these units offer improved discharge characteristics, enhanced safety, reliable performance, and a longer expected service life.