Inverter Battery Features Long Life Life-1200 Cycle Special Tubular positive spines cast at high pressure 100 bar to raise corrosion life Extra Back-up Excellent reserve capacity for long backup. More current density, max. AH efficiency. Operating Specific Gravity 1.250 +/-0.005 at 270C. Deep Cycle Back-up high charge acceptance due to usage of quality PE separator. Special additives for better charge acceptance & retention. Low Maintenance Special Alloy grids ensures low gassing and minimum water loss. 20% Extra electrolyte for less topping & batter thermal Management Low internal resistance seal proof leak proof. Float indicators level.