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9 Best marine battery group sizes of 2026

Save up to 11% off
  • Best Choice

    1

    Interstate Batteries Marine/RV Battery 12V 70Ah 750CCA Group 24 AGM
    Interstate Batteries
    9.7
    Exceptional

    Interstate Batteries Marine/RV Battery 12V 70Ah 750CCA Group 24 AGM

    • Cold Cranking Amps:750CCA
    • Capacity:70Ah
    • Technology:Pure Lead AGM
    • Group Size:24
    • Voltage:12V
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  • Value for Money

    2

    Weize BCI Group 31M Dual Purpose AGM Battery, 240RC 825CCA 12V 110AH Starter & Deep Cycle Sealed Marine & RV Battery
    WEIZE
    9.6
    Exceptional

    Weize BCI Group 31M Dual Purpose AGM Battery, 240RC 825CCA 12V 110AH Starter & Deep Cycle Sealed Marine & RV Battery

    • Cycle Life:2x more than traditional flooded marine batteries
    • Cold Cranking Amps:825CCA
    • Maximum Charging Current:21A
    • Reserve Capacity:240RC
    • Capacity:110AH

  • 3

    Mighty Max Battery MM-G27M, 12V 100Ah, Group Size 27M Deep-Cycle Marine AGM, Dual-Purpose Starting & Deep Discharge, 800 CCA, 850 MCA, 170 RC, Spill-Proof Maintenance-Free Battery
    Mighty Max Battery
    9.4
    Excellent

    Mighty Max Battery MM-G27M, 12V 100Ah, Group Size 27M Deep-Cycle Marine AGM, Dual-Purpose Starting & Deep Discharge, 800 CCA, 850 MCA, 170 RC, Spill-Proof Maintenance-Free Battery

    • Cold Cranking Amps:N/A
    • Capacity:100Ah
    • Technology:N/A
    • Group Size:27M
    • Voltage:12V

  • 4

    Weize Dual Purpose AGM Battery BCI Group 27M, 175RC 580CCA 12V 92AH Starter & Deep Cycle Sealed Marine & RV Battery
    WEIZE
    9.3
    Excellent

    Weize Dual Purpose AGM Battery BCI Group 27M, 175RC 580CCA 12V 92AH Starter & Deep Cycle Sealed Marine & RV Battery

  • 5

    Interstate Batteries Marine/RV Battery 12V 100Ah 925CCA 1110CA Group 31 AGM
    Interstate Batteries
    9.0
    Excellent

    Interstate Batteries Marine/RV Battery 12V 100Ah 925CCA 1110CA Group 31 AGM

    • Cold Cranking Amps:925CCA
    • Battery Type:Pure Lead AGM
    • Capacity:100Ah
    • Group Size:31
    • Voltage:12V
  • See Today’s Deals & Prices

  • 6

    Attwood 9084-1 Large Vented Battery Box with Mounting Strap, Fits Group 29 and 31 Series Batteries, Black
    attwood
    8.9
    Very Good

    Attwood 9084-1 Large Vented Battery Box with Mounting Strap, Fits Group 29 and 31 Series Batteries, Black

    • item package dimensions l x w x h: 18.9 x 10.24 x 9.06 inches
    • color: Black
    • sport type: Boating
    • item weight: 2.7 Pounds
    • suggested users: unisex-adult

  • 7

    UPLUS BCI Group 24M Dual Purpose AGM Marine Battery 12V 79AH 550CCA
    UPLUS NEW TECHNOLOGY BATTERY
    8.6
    Very Good

    UPLUS BCI Group 24M Dual Purpose AGM Marine Battery 12V 79AH 550CCA

  • 8

    12V 100Ah LiFePO4 Battery, Group 24 Deep Cycle RV/Trolling Motor Battery
    SUPER EMPOWER
    8.5
    Good

    12V 100Ah LiFePO4 Battery, Group 24 Deep Cycle RV/Trolling Motor Battery

    11% Off Limited Time Deal
    • Cold Cranking Amps:N/A
    • Capacity:100Ah
    • Technology:N/A
    • Group Size:N/A
    • Voltage:12V

  • 9

    Attwood 9067-1 Vented Battery Box with Mounting Strap, Fits Group 27 Series Batteries, Black
    attwood
    8.3
    Good

    Attwood 9067-1 Vented Battery Box with Mounting Strap, Fits Group 27 Series Batteries, Black

    • item package dimensions l x w x h: 17.25 x 11.75 x 10.15 inches
    • product dimensions: 16.88D x 9.63W x 10.88H
    • color: Black
    • sport type: Boating
    • item weight: 1.5 Pounds