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Home >> Saturn >> 2003 >> Ion 1 Standard >> Repair and Diagnosis (Single Page) >> Electrical >> Motors, Switches, Relays >> Battery >> Description and Operation >> Battery Description and Operation >> Reserve Capacity

Reserve Capacity

Reserve capacity is the amount of time in minutes it takes a fully charged battery, being discharged at a constant rate of 25 amperes and a constant temperature of 27°C (80°F) to reach a terminal voltage of 10.5 volts. Refer to Battery Usage  for the reserve capacity rating of the original equipment battery.