Marine Starting Battery Specifications - Cold Cranking Amps (CA), Cranking Amps (CA), Marine Cranking Amps (MCA)
Flooded starting batteries are the most popular lead-acid battery type for outboard motors. They often operate under the most extreme temperature conditions and must be able to deliver high Cold Cranking Amps (CCA) consistently. Starting battery failure is most commonly caused by acid stratification, extreme temperatures and destructive vibration. Starting batteries are not designed for regular discharges of more than 1% to 3% Depth of Discharge (DoD).
Marine Starting battery specifications: Cold Cranking Amps; the amps a 12V battery can discharge for 30 seconds at -18°C / 0°F while maintaining its voltage above 7.2 volts. Because lead-acid batteries produce more energy at higher temperatures, we also rate marine batteries in Cranking Amps (CA); similar to CCA but measured at 0°C / 32°F and Marine Cranking Amps (MCA); similar to CCA but measured at 27°C / 80°F.