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 Replaces Wagan 2741 BriteNite Mega Spotlight + 12V 1A Chrgr Delivering power when you need it, the Mighty Max ML7-12 12 Volt 7.. Long lasting high performance in high and low temperatures.