Skip to Main Content Skip to Footer Links
Error occured! Please reload the page and try again

You have no saved vehicles.

Add a vehicle to quickly see parts that fit your make and model

Vehicle added


Find parts for the selected vehicle:

View Vehicles
Are you sure you want to delete this vehicle?

    Add Another Vehicle

    Add a vehicle

    OPTIMA Batteries Blue Top, Deep Cycle Battery, Group Size 31, 900 CCA

    Part #D31M
    Having problems with your old battery? Get free battery testing and recycling. Available in most locations, on most batteries. See store for details.
    • Product Details

      Part No.D31M

      Warranty Details (2 YR FREE REPLACEMENT)

      Installing an OPTIMA BlueTop high-performance AGM battery in your boat or RV means more running time and up to 3 times more recharges than what you'd get out of a traditional battery. It's perfect for boats with electric trolling motors and onboard electronics that tend to drain batteries quickly.

      Product Features:

      • SPIRALCELL Technology provides 15x the vibration resistance of a traditional battery
      • 3x more recharges than a traditional battery
      • Completely NON SPILLABLE, mountable in many positions
      • Maintenance free for maximum convenience
      • Dual purpose for both deep cycle and starting applications

    • Specifications

      • Battery Type:Primary (Non-Rechargeable)
        Battery Usage:Starting
        Cold Cranking Amperage:900 A
        Cranking Amps:1125 A
        Height:9 3/8 in
        Length:12 13/16 in
        Maintenance Free:Yes
        Reserve Capacity:155 m
        Terminal Type:Combination Auto / Stud Terminal
        Voltage:12 v
        Weight:61 lbs
        Width:6 1/2 in
        BCI Group Size:31
    • Read Review

    • Q & A

      Ask a question, get answers from real customers and in-house experts.
    Disclaimer: We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.