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Some Powerpack or Powerbox products manufactured by Xantrex show both Cranking Amps and Cold Cranking Amps on the the packaging. These appear as two different numbers; this is because they are two different numbers, and they are calculated in different ways. Cranking Amps is what you get when the battery is at 0 degrees Celsius (32 degrees F); Cold Cranking Amps is what you get when the battery is at 0 degrees Fahrenheit, a much colder temperature. For best comparison of how much 'juice' the battery will have for cold climate starting, always compare 'CCA' or Cold Cranking Amps.