Cycling Capacity 20-hour rate 55 Amp Hours Reserve Capacity @ 25 Amps 100 minutes @ 75 Amps 17 minutes Mechanical Specifications Group Size 51 Terminal Type M6 Total Height 8.35" (212 mm) Height 8.19" (208 mm) Width 5.43" (138 mm) Length 9.02" (229 mm) Weight 39.7 lbs (18 kg) Case Type ABS Plastic - Flame Res Rating UL94-HB Discharge Table (Constant Current) Time Amps Rate 20 hr 2.7 0.05 CA 10 hr 5.2 0.1 CA 8 hr 6 0.13 CA 5 hr 9.7 0.25 CA 3 hr 14.2 0.33 CA 2 hr 18.1 0.5 CA 1 hr 32.1 1 CA Electrical Specifications Nominal Voltage 12 Volt Capacity @ 100 hour rate 60 AH Capacity @ 20 hour rate 55 AH Capacity @ 10 hour rate 49 AH Capacity @ 5 hour rate 43 AH CCA 620 CA or MCA 745 Short Circuit Current 1729 Amps Internal Resistance 7.2m Ω Charge Voltages Battery Voltages Charge Stage 12V 24V 36V 48V Bulk 14.7 V 29.4 V 44.1 V 58.8 V Absorption 14.7 V 29.4 V 44.1 V 58.8 V Float 13.6 V 27.2 V 40.8 V 54.6 V TC Factor: -4mV/°C/cell Temperature Range Specifications Condition Recommended Maximum Storage -15°C to 50°C -40°C to 71°C Operation -15°C to 40°C -40°C to 71°C Charge with TC -15°C to 50°C -40°C to 71°C Charge without TC 0°C to 40°C -15°C to 50°C