Optima BlueTop D27M Dual Purpose AGM Battery – 12V 890 CCA (8027-227)

The Optima BlueTop D27M is a high-capacity dual-purpose AGM battery designed for applications that require strong starting power combined with reliable deep-cycle performance. This makes it an excellent choice for Boss Air Suspension systems, vehicles running 12V onboard air compressors, touring 4WDs, RVs, and camping setups where electrical loads are high and reliability is critical.

With 890 CCA and a generous 66Ah capacity, the D27M provides confident engine starts while also delivering sustained power for accessories such as air compressors, air management systems, fridges, lighting, and inverters. It effectively bridges the gap between a traditional starting battery and a deep-cycle battery, reducing the need for complex dual-battery systems in some applications.

Ideal for Air Suspension, Compressors & Touring Loads

Air suspension systems demand stable voltage during repeated compressor cycles. The BlueTop D27M’s AGM SpiralCell construction delivers consistent power with fast recharge characteristics, helping maintain reliable compressor performance whether you’re adjusting ride height, airing up, or managing air tanks during extended use.

Its high reserve capacity also makes it well suited to vehicles used for:

• 4WD touring and camping

• RV and camper builds

• Boats and marine applications

• Vehicles with frequent accessory use

Built for Harsh Environments

The D27M is engineered to withstand vibration, movement, and demanding conditions. Its sealed AGM design is spill-proof, maintenance-free, and can be mounted in flexible orientations, including angled installations. This makes it suitable for engine bays, trays, and custom battery mounts commonly found in modified 4WDs and touring vehicles.

The battery is also suitable for Idle Stop Start (ISS) applications, reflecting its ability to handle frequent charge and discharge cycles

Key Features & Benefits

• 12V AGM dual-purpose battery (starting + cycling)

• 890 CCA (SAE) for strong, reliable engine starts

• 66Ah capacity with excellent reserve for accessories

• High vibration resistance for off-road and touring use

• Spill-proof, sealed AGM construction

• Maintenance-free operation

• Fast recharge capability

• Dual terminal design for flexible installation

Battery Specifications

• Voltage: 12V

• Cold Cranking Amps: 890 CCA (SAE)

• Capacity: 66Ah

• Reserve Capacity: 140 minutes

• Battery Type: AGM

• Terminal Type: Dual terminals

• Assembly: Left-Hand Positive (LHP)

• Dimensions: 308mm (L) × 172mm (W) × 225mm (H)

• Weight: 24.4kg

Ideal For

• Boss Air Suspension systems

• Vehicles with onboard 12V air compressors

• 4WD touring and camping builds

• RV and camper applications

• Marine and boat installations

If you’re looking for one battery that can confidently start your vehicle and power demanding accessories, the Optima BlueTop D27M is a proven, heavy-duty solution for air suspension and adventure-focused builds.