... battery are with low-self discharge ,high capacity,long durability,airtight structure,optimized design ect. lead acid batterySpecifications :1 ... W×H):181×77×1674) Weight :6.7kgFeatures :1) Airtight structure2) High capability3) Long service life4) ... ) Reliability6) Optimized design7) More deep cycle timesApplications:1) Telephone switchboard ,electric equipments,medical equipments and instruments ...