Marine Master 8A31DTM Group 31 AGM Marine Battery

Special Price $299.95 Regular Price $359.95
Part Number

Set sail with the Deka Marine Master 8A31DTM Battery, a high-performance Group Size 31 AGM Marine Battery, designed for unrivaled reliability and durability in marine environments. Employing advanced Absorbent Glass Mat (AGM) technology, this maintenance-free battery is engineered to provide exceptional power and longevity for boats, yachts, and other marine applications. The Marine Master 8A31DTM stands out with its superior vibration resistance, spill-proof design, and deep-cycle capabilities, ensuring a safe and efficient power source for all your nautical adventures. Whether for leisure or professional use, the Deka Marine Master 8A31DTM AGM marine battery offers the ultimate combination of performance, safety, and environmental responsibility.


Battery Voltage

800 CCA

Cold Cranking Amps

105 AH

20 Amp Hour Rate

200 Min

Reserve Capacity

8A31DTM Features

  • Maintenance Free Design
    • No need to check electrolyte levels
  • Tightly Packed Construction and Calcium Reinforced Grids
    • Provide greater resistance to shock and vibration
  • Faster Recharge Time
    • Allows for faster turn-around times
  • Sealed Construction
    • Spill-proof design provides added protection for sophisticated electronic equipment
  • Easy fit and efficient design allows for easy installation in more applications
  • 2x Life Cycle - Compared to Conventional Batteries
    • Extended Performance and Life
  • 20x More Vibration Resistance
    • Extreme Service Use - Off Road, Construction, Marine
  • Superb Dual Purpose Design
    • Ideal for both starting and deep cycle applications
  • Computer-cast power path grids assures highest quality and optimum performance
  • Advanced Durability Designs
    • Fortified posts, straps and welds resist vibration damage
    • Maximize current transfer over live of battery
  • Power-Perform Full-Frame Positive & Negative Plates
    • Withstands severe service applications
    • Prevents life-robbing electrical shorts from exposed wire
  • Enhanced Electrolyte Suspension System
    • Absorbs more electrolyte, protects internal components
  • Mirco-porous glass separators prevents acid spills and terminal corrosion

8A31DTM Dimensions







Pennsylvania, USA

The 8A22NF is Proudly Made in the USA!The 8A22NF is Proudly Made in the USA!
More Information
Part Number 8A31DTM
UPC 0 83996 00055 1
Battery Voltage 12 Volt
Cranking Amps 1000 CA
Cold Cranking Amps 800 CCA
Capacity 105 Ah
Reserve Capacity Minutes 200 Minutes
Battery Group Size Group Size 31
Battery Type Deep Cycle
Battery Chemistry Absorbed Glass Mat
Length 12-15/16"
Width 6-3/4"
Height 9-3/8"
Weight 69 Lbs
Warranty 12 Month
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