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Optima Blue Top D31M Review

Optima Batteries 8052-161 D31M Optima D31M BlueTop is designed as a dual purpose battery, both starting and deep cycle for people who need a sure-starting, strong cranking, and maintenance free power source for their boat or RV, even in harsh conditions.

Optima Blue Top D31M User Manual

Having a problem? Download Optima Blue Top D31M instructions.

Pros & Cons of Optima Blue Top D31M


  • Up to three times more recharges than other marine batteries
  • More than 15 times the vibration resistance
  • SpiralCell Technology
  • Works well as a boat battery or RV battery


  • Doesn’t hold charge

Related Video: Difference Between Optima Red Top Yellow Top Blue Top