Technical data vs Technology Features VRLA Batteries Stationnary Batteries VRLA – AGM VRLA – GEL Flat Plates – Wet Tubular Plates – Wet Flat Plates Flat Plates Tubular Plates Floating voltage vs electrolyte density Density 1,280 to 1.300 2,27V 2,27V 2,23V Density 1,250 2,23V Density 1,240 2,21V Density 1,215 2,19V Thermal compensation factors Floating +- 3mVolts / Cell / °C Cycling +- 5mVolts / Cell / °C Max voltage during absorption charge pahse – Fast charge – Cycling application 2,45 V/Cell 2,40 V/Cell 2,45V/cell First charge Voltage Boost for Dry Charged Batteries 2 hours max 2,75 V/Cell I max fast charge 0,3 C10 0,25 C10 0,3 C10 Safe voltage vs discharge time 0 to 1 hour 1,60 V/Cell 1 to 3 hours 1,65 V/Cell 3 to 5 hours 1,70 V/Cell 1,70 V/Cell 1,70 V/Cell 5 to 20 hours 1,75 V/Cell 1,80 V/Cell 1,80 V/Cell 1,80 V/Cell 1,80 V/Cell More than 20 hours 1,80 V/Cell 1,80 V/Cell 1,80 V/Cell 1,80 V/Cell 1,80 V/Cell Operating T° of discharge -20°C to +60°C Operating T° of charge -15°C to +50°C -10°C to +50°C -15°C to +50°C Number of cycles – T°= 20°C Rates of discharge 0,2C and charge 0,1C DOD 80% 250 Cycles 450 Cycles 1500 Cycles 400 Cycles 1300 Cycles DOD 50% 400 Cycles 780 Cycles 2400 Cycles 720 Cycles 2500 Cycles DOD 20% 1350 Cycles 1800 Cycles 5000 Cycles 1800 Cycles 5000 Cycles Self-discharge rate 1,2% at 0°C – 1,5% at 10°C – 1,5% to 2,5% at 20°C