GM Service Manual Online
For 1990-2009 cars only

Battery Temperature and Minimum Voltage

Estimated Temperature

(Metric)

Estimated Temperature

(English)

Minimum Voltage

21°C

70°F

9.6 V

10°C

50°F

9.4 V

0°C

32°F

9.1 V

-10°C

15°F

8.8 V

-18°C

0°F

8.5 V

Below -18°C

Below 0°F

8.0 V

Generator Output

Rated Output Amps

Cold Output Amps

Cold Output RPM

160

45

1600

160

150

5000

100

60

1600

100

100

6500

130

57

1600

130

130

6500