Optima Blue Top Battery D31M


  • Mountable in any position
  • High power at hot and cold temperatures
  • 15 times more vibration resistant than conventional batteries
  • Non spill-able and leak proof, even when punctured
  • Low internal resistance
  • Non Corrosive, Non-venting in normal use
SKU: opt31d Category: Tags: , ,


OPTIMA MARINE BATTERY D31M:  Blue Top  Sealed AGM 12 Volt

L 12.9″ x W 6.5″ x H 9.4″    59.8 lbs.

Reserve = 155 amps – Amp Hour Capacity (20 Hour Rate) = 75 AH.

The D31M is Optima’s most powerful single-unit Blue Top battery.

The D31M Blue Top offers exceptionally high CCA for its size and boasts 75 amp hours of current storage for long deep-cycling run times.

The D31M will not off-gas in normal operation, but for complete safety in enclosed spaces its overpressure vent will accept a remote venting tube. The D31M Blue Top offers the best performance/cost value on the market. It performs in any deep cycle battery application, and its Spiralcell AGM construction make it tough. 14x more shock and vibration resistant than conventional batteries.

Optima has a 2x longer-life, safety, spill-proof, vibration resistance and multi-position installation.

Optima D31 is Designed for engine Starting and Deep Cycling applications and for use in boats with large accessory loads.

The OPTIMA BlueTop is ideal for those who need a sure-starting, strong cranking, maintenance-free power source.


OPTIMA Batteries Blue Top offer the clean, reliable, high-power output and deep cycle characteristics that have made OPTIMA batteries famous for marine applications.

2 year warranty

Additional information

Weight 59.8 lbs


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