battery cca or mca

  1. Soul Mate II

    Accessory Battery - what CCA or MCA? No markings on batteries? 99 340 DA

    Afternoon - I have a '99 340 DA, just had my batteries tested. Accessory batteries came up 57 and 63 CCA and the voltage was below 12 volts. I assume they are group 27 based on the size. Any idea what CCA or MCA I need? I know I don't need starting batteries, should I get the dual batteries...
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