2 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.2AH SLA Battery Replaces GTO's PRO3000, PRO4000 Swing Gate Delivering power when you need it, the Mighty Max ML7-12 12 Volt 7. SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover. Long lasting high performance in high and low temperatures.