Optima Sealed Lead Acid Battery-Group 27 Starting Blue Dual-Threaded Top

The Optima BlueTop D27M (9027-127) battery delivers premium power and reliability for marine and RV applications. This dual-purpose AGM battery is ideal for starting and deep cycling needs—perfect for trolling motors, RV appliances, and onboard electronics. Featuring 800 CCA and SpiralCell® technology, the D27M offers exceptional vibration resistance, long cycle life, and quick recharge performance—all in a spill-proof, maintenance-free design.

Key Features

• Dual-purpose battery – ideal for starting and deep cycling

• 800 Cold Cranking Amps (CCA) – reliable starts in any condition

• 1000 Marine Cranking Amps (MCA)

• 66 Ah (C20 capacity) – supports onboard electronics and accessories

• 140 minutes reserve capacity @ 25 amps

• SpiralCell® AGM technology – strong vibration resistance & faster recharge

• Maintenance-free and spill-proof sealed design

• Mounts in nearly any position

• Durable polypropylene case – protects in harsh marine/RV environments

• Dual-threaded SAE posts – top posts for versatile fitment

Item Specifications

• Brand: Optima Batteries

• Model: BlueTop D27M

• Part Number: 9027-127

• Battery Type: Dual Purpose (Starting + Deep Cycle)

• Voltage: 12V

• Cold Cranking Amps (CCA): 800

• Marine Cranking Amps (MCA): 1000

• C20 Capacity: 66 Ah

• Reserve Capacity @ 25A: 140 minutes

• Group Size: 27

• Terminal Type: Dual-threaded SAE Top Posts

• Dimensions (L x W x H): 12.19" x 6.81" x 8.75"

• Weight: 53.8 lbs

• Technology: SpiralCell® AGM

• Color: Light Gray Case with Blue Top

• Case Material: Polypropylene

Application / Fitment

• Designed for marine and RV applications

• Supports trolling motors, depth finders, lighting, and appliances

• Suitable for boats, campers, travel trailers, and other 12V recreational systems

What’s Included

• (1) Optima BlueTop D27M AGM Marine/RV Battery – Part #9027-127

• Factory-sealed, original Optima packaging

• User guide and warranty registration card