OPTIMA BlueTop D27M AGM Marine Battery

Description

The OPTIMA BlueTop D27M is a high-performance AGM marine battery engineered for both starting and deep cycle applications. Featuring OPTIMA’s exclusive SpiralCell design with 99.99% pure lead, it delivers strong cranking power, fast recharge capability, and long-lasting durability in marine environments.

Designed for boats that require both engine starting and accessory power, the D27M is ideal for running electronics, trolling motors, and onboard equipment.

Looking for more power? View the OPTIMA BlueTop D31M here.

Key Features

• Dual purpose design – starting and deep cycle marine battery
• 800 Cold Cranking Amps (CCA)
• 1000 Marine Cranking Amps (MCA)
• 66Ah capacity for deep cycle use
• 140 minutes Reserve Capacity
• Exclusive SpiralCell technology with 99.99% pure lead
• Up to 3x more recharge cycles than standard flooded batteries
• More than 15x vibration resistance
• Maintenance-free, spill-proof AGM design
• Mountable in virtually any position (except inverted)

Specifications

• Group Size: 27
• Voltage: 12V
• Cold Cranking Amps (CCA): 800
• Marine Cranking Amps (MCA): 1000
• Capacity: 66Ah
• Reserve Capacity: 140 minutes
• Terminal Type: Dual Marine Terminals (SAE Post & 5/16″ Stud)
• Chemistry: AGM (Absorbent Glass Mat)

Dimensions & Weight

• Length: 12.19″ (310 mm)
• Width: 6.81″ (173 mm)
• Height: 8.75″ (223 mm)
• Weight: 54 lbs (25 kg)

Common Applications

• Marine starting and deep cycle applications
• Boats with trolling motors and onboard electronics
• Dual-purpose marine battery setups
• Fishing boats, cruisers, and recreational watercraft

FAQs

Is the OPTIMA D27M a starting or deep cycle battery?
It is a dual-purpose marine battery designed to provide both strong engine starting power and deep cycle performance for onboard electronics.

What terminals does the D27M have?
The D27M features dual marine terminals, including SAE posts and 5/16″ threaded studs for flexible connection options.

Is this battery maintenance-free?
Yes, this is a sealed AGM battery that does not require water top-ups. However, it should be kept properly charged, especially during periods of inactivity.