1 Seal Maintenance Free Battery. 2 Calcium-Calcium,Lead acid Battery. 3 Long life,Powerful Design. 1,Type: Seal ... car & truck & bus.2,Material:Calcium-Lead,PE separator,high pure acid.3,Long life,Powerful design.4,Excellent starting performance.5 ... prfile delivers extra safety through No-splash feature that minimises acid spray,spill,fumes;4. New electrolyte recovery system--Ingenious channels ...