Yuasa NP1.2-6 has been cross-referenced to be compatible and replace Amstron 6V 1.2Ah sealed lead acid Battery. This 3 cell battery by Genesis is rated at 6V 1.2Ah 7 Whr. Yuasa NP1.2-6 battery are designed using proven gas recombination technology which removes the need for regular water addition by controlling the evolution of hydrogen and oxygen during charging. Gas recombination provides the user with freedom to use lead acid batteries in a wide range of applications.