Skip to Main Content Skip to Footer Links
Error occured! Please reload the page and try again
Choose a Store
Open till 
There are vehicles in your garage

Free shipping on all orders.

Enroll in Speed Perks for more savings.

Cart is empty!

Add Something to the cart

includes estimated shipping

Vehicle added


Find parts for the selected vehicle:

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

    Add a

    Add a

    Optima Blue Top Marine Battery, Group Size 31M, 900 CCA

    Part # D31M
    Loading ...
    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)

      OPTIMA BLUETOP is a high-performance AGM battery with exceptional running time and more recharges to power your boat or RV. On top of providing outstanding vibration resistance, the BLUETOP's efficient power delivery and faster recharge time mean you'll spend less time worrying about your battery and more time out on the water.

      Product Features:

      • SPIRALCELL TECHNOLOGY with 99.99% pure lead delivers more power and consistently outperforms conventional flat-plate batteries
      • Up to 3 times longer life vs. standard flooded batteries
      • 15x the vibration resistance of a standard flooded battery
      • Completely non-spillable, mountable in many positions
      • Maintenance free for maximum convenience
      • Dual purpose for both deep cycle and starting applications

    • Specifications
      • Cold Cranking Amperage:900 A
        Cranking Amperage:1125 A
        Negative Terminal Location:Top Right
        Positive Terminal Location:Top Left
        Reserve Capacity:155 min
        Terminal Type:Top Mount
        Voltage:12 VDC
    • Read Review
    • Q & A