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Group Size

A BCI (Battery Council International) group size is a standardized system that categorizes car and truck batteries by their physical dimensions, terminal configurations, and placement, ensuring compatibility between batteries and vehicles. Different group numbers, such as 24 or 31, correspond to specific sizes and features, with the correct size determined by checking the vehicle's owner's manual or the existing battery. Powersports batteries use a different designation, often a YTX, YTZ, or BTX prefix followed by numbers, which denotes the physical size, capacity (Amp Hours or AH), and type (e.g., lead-acid or lithium).

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  • ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M)

    ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M)

    ULTRAPOWER
    $309.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $309.95
    Subtotal:
  • ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27)

    ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27)

    ULTRAPOWER
    $314.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $314.95
    Subtotal:
  • ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) 4 Pack ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27)

    ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) - 4 Pack

    ULTRAPOWER
    $589.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $589.95
    Subtotal:
  • ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M)

    ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) - 2 Pack

    ULTRAPOWER
    $439.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $439.95
    Subtotal:
  • ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) 2 Pack ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27)

    ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) - 2 Pack

    ULTRAPOWER
    $404.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $404.95
    Subtotal:
  • ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) 8 Pack ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27)

    ULTRAPOWER EV27 12V 780 MCA Maintenance-Free Marine Battery (Group 27) - 8 Pack

    ULTRAPOWER
    $1,014.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $1,014.95
    Subtotal:
  • ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) 4 Pack ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M)

    ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) - 4 Pack

    ULTRAPOWER
    $794.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $794.95
    Subtotal:
  • ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) 8 Pack ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M)

    ULTRAPOWER EV31 12V 1060 CCA Maintenance-Free Deep Cycle Battery (Group 31M) - 8 Pack

    ULTRAPOWER
    $1,409.95
    When you need a battery, you need it FAST, and you need to know you're choosing the best. ULTRAPOWER batteries use only the highest-quality components, grids, and separators, resulting in a battery that provides optimal power for any application.Model:...
    Qty in Cart: 0
    Quantity:
    Price:
    $1,409.95
    Subtotal:
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