Battery Usage Chart
GM Part Number (1) 19000680Cold Cranking Amperes (2) 770 A
Reserve Capacity Rating (3) 115 Minutes
Test Load 380 A
Replacement Battery Number 78A-84
(1) The catalog number of the original equipment battery is the last three digits of its GM part number.
(2) Cold Cranking = Amperage available for 30 seconds of engine cranking at -18°C (0°F).
(3) Reserve Capacity = The approximate time in minutes a battery can support a 25-amp load without the terminal voltage dropping below 10.5 volts at 27°C (80°F) in the event of a charging system failure.