Optima BlueTop D27M AGM Marine Battery

Optima BlueTop D27M AGM Marine Battery – 12V 66Ah 800CCA Dual Purpose Starting & Deep Cycle Battery

The Optima BlueTop D27M is a high-performance dual-purpose AGM marine battery engineered to deliver strong engine starting power alongside reliable deep-cycle capability. Built using SpiralCell® AGM technology, the D27M provides exceptional vibration resistance, fast recharge performance and maintenance-free operation — making it ideal for marine, 4WD and RV electrical systems operating in demanding environments.

Designed for both cranking and accessory loads, the BlueTop D27M supports high electrical demand applications such as trolling motors, onboard electronics and auxiliary systems while maintaining dependable engine starting performance. Its sealed non-spillable construction allows flexible mounting and improved safety in confined marine installations. ()

Key Features:
• Dual-purpose design – engine starting and deep cycle use
• 800CCA strong marine cranking performance
• Sealed AGM SpiralCell® construction
• Up to 15× vibration resistance vs conventional flooded batteries
• Maintenance-free, non-spillable housing
• Dual SAE & stainless stud terminals for flexible wiring ()

Technical Specifications:
Voltage: 12V
Capacity (C20): 66Ah
Cold Cranking Amps (CCA): 800A
Marine Cranking Amps (MCA): 1000A
Reserve Capacity: 140 minutes @25A
Dimensions (L×W×H): approx. 308 × 171 × 220 mm
Weight: approx. 24.4 kg
Terminal Type: Dual Marine / SAE Stud ()

Design & Performance:
SpiralCell® AGM construction uses tightly wound pure-lead plates to provide consistent power delivery, improved durability and faster recharge capability compared to conventional flat-plate batteries. The sealed design eliminates spills and corrosion while supporting installation in multiple orientations for flexible marine setups. ()

Ideal For:
Marine starting batteries, dual-purpose house/start systems, trolling motors, offshore electronics, 4WD auxiliary setups and vibration-heavy installations requiring maintenance-free reliability.

The Optima BlueTop D27M delivers a balance of strong cranking performance and dependable deep-cycle capability, making it a versatile AGM battery solution for modern marine electrical systems.