Reserve Capacity

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Reserve capacity is the time in minutes necessary to discharge a completely charged battery to a terminal voltage of 10.5 volts under the following conditions:

A constant rate of 25 amperes.
A constant temperature of 27°C (80°F).

Refer to Battery Usage for the reserve capacity rating of the original equipment battery.