Which of the following statements about battery ratings is true? A. The ampere-hour rating is defined as the amount of steady current that a fully charged battery can supply for 1 hour at 80°F(26.7°C) without the cell voltage falling below a predetermined voltage. B. The cold cranking amps rating represents the number of amps that a fully charged battery can deliver at 0°F(−17.7°C) for 30 seconds while maintaining a voltage above 9.6 volts for a 12-volt battery. C. The cranking amp rating expresses the number of amperes a battery can deliver at 32°F(0°C) for 30 seconds and maintain at least 1.2 volts per cell. D. The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F can supply before the battery's voltage falls below 10.5 volts.

Which of the following statements about battery ratings is true?

• A. The ampere-hour rating is defined as the amount of steady current that a fully charged battery can supply for 1 hour at 80°F(26.7°C) without the cell voltage falling below a predetermined voltage.
• B. The cold cranking amps rating represents the number of amps that a fully charged battery can deliver at 0°F(−17.7°C) for 30 seconds while maintaining a voltage above 9.6 volts for a 12-volt battery.
• C. The cranking amp rating expresses the number of amperes a battery can deliver at 32°F(0°C) for 30 seconds and maintain at least 1.2 volts per cell.
• D. The reserve-capacity rating expresses the number of amperes a fully charged battery at 80°F can supply before the battery's voltage falls below 10.5 volts.

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