Performance Specifi cations Nominal Voltage ...........................................................................6 volts (3 cells) Nominal Capacity 20-hr. (1.8A to 5.25 volts) ............................................................ 36.00 AH 10-hr. (3.35A to 5.25 volts) .......................................................... 33.50 AH 5-hr. (6.12A to 5.10 volts) .......................................................... 30.60 AH 1-hr. (22.3A to 4.50 volts) .......................................................... 22.30 AH 15-min. (70.6A to 4.50 volts) .............................................................17.65 AH Approximate Weight ......................................................... 12.10 lbs. (5.49 kg) Energy Density (20-hr. rate) ................................ 1.59 W-h/in3 (96.85 W-h/l) Specifi c Energy (20-hr. rate) .............................. 17.85 W-h/lb (39.36 W-h/kg) Internal Resistance (approx.) ........................................................ 6 milliohms Max Discharge Current (7 Min.) ................................................ 108 amperes Max Short-Duration Discharge Current (10 Sec.) ................... 360 amperes Shelf Life (% of nominal capacity at 68°F (20°C)) 1 Month ...................................................................................................... 97% 3 Months ..................................................................................................... 91% 6 Months .................................................................................................... 83% Operating Temperature Range Charge .. ........................................................... -4°F (-20°C) to 122°F (50°C) Discharge ....................................................... -40°F (-40°C) to 140°F (60°C) Case ...................................................................................................... ABS Plastic Power-Sonic Chargers ................................................PSC-64000A, 64000A-C