SPECIFICATIONS for back up power Nominal Voltage 12 V Rated Capacity (10 hour rate) 65 AH Dimensions (Length*Width*Height*Total Height )/mm 350*166*179*179 mm Weight Approx 20.5kg CHARACTERIESTICS Capacity 25°C 10 Hour rate (6.5A) 65 AH 5 Hour rate (10.4 A) 52 AH 1 Hour rate (39.0 A) 39 AH Internal Resistance Fully charged battery at 25°C 5.5 mΩ Capacity affected by temperature (20 hour rate) 40°C 25°C 0°C -15°C 102% 100% 85% 65% Self-Discharge At 25°C Capacity after 3 month storage Capacity after 6 month storage Capacity after 12 month storage 91% 82% 64% Terminal Type T11 Charge (Constant Voltage) Cycle use Initial Charging Current less than 26.0 A Voltage 14.40~14.70V Float use Voltage 13.50~13.80V