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Home >> Pontiac >> 2005 >> Aztek Base, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> 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.