12V 66AH 800CCA Bluetop Marine Battery (D27M)

🔋 OPTIMA BLUETOP D27M AGM MARINE BATTERY – 12V 66AH 800CCA 1000MCA

High-Performance AGM Marine Battery – 800CCA Starting Power, 1000MCA, 66Ah C20 Capacity, 140-Minute Reserve Capacity & Type M Terminals

🚤 Designed for demanding marine, RV and mobile power applications, the Optima BLUETOP D27M AGM Battery combines strong starting performance with useful runtime, fast recharge capability and rugged vibration-resistant construction.

With 800CCA, 1000MCA, 66Ah C20 capacity and approximately 140 minutes of reserve capacity at 25A, the BLUETOP D27M provides a substantial combination of cranking power and stored energy for compatible 12V marine and recreational vehicle systems.

Optima SpiralCell Technology uses 99.99% pure lead and spiral-wound construction to support consistent power delivery, strong durability and faster recharging than conventional flat-plate battery designs.

The supplied product information states that BLUETOP batteries can provide up to three times more recharges than traditional marine batteries, up to three times longer service life than standard flooded batteries and up to 15 times greater vibration resistance under applicable operating conditions.

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⚡ KEY FEATURES

⚡ 800CCA Starting Power
Provides strong cold-cranking performance for compatible 12V starting applications.

🚤 1000MCA Marine Cranking Power
Provides high marine cranking output for compatible boat and marine engine applications.

🔌 66Ah C20 Capacity
Provides substantial stored energy for compatible onboard accessories, equipment and runtime requirements.

⏳ 140-Minute Reserve Capacity
Supplied reserve capacity is approximately 140 minutes at a 25A load.

🚤 Marine & RV Application
Designed for compatible boats, recreational vehicles and other applications requiring dependable AGM battery power.

🌀 SpiralCell Technology
Optima’s spiral-wound internal construction is designed for consistent power delivery and durability.

🧪 99.99% Pure Lead
The supplied product information specifies 99.99% pure lead within the SpiralCell design.

🔄 Faster Recharging
Designed to restore battery charge efficiently between periods of starting and electrical use.

💪 Strong Vibration Resistance
The supplied information states up to 15 times greater vibration resistance than a standard flooded battery.

🔁 More Recharge Cycles
The supplied information states up to three times more recharges than a traditional marine battery under applicable conditions.

⏱️ Extended Service-Life Design
The supplied information states service life of up to three times longer than standard flooded batteries under applicable conditions.

🛡️ AGM Construction
Absorbent Glass Mat technology provides maintenance-free and non-spillable operation.

🧰 Maintenance Free
No routine electrolyte topping-up or fluid maintenance is required.

💧 Completely Non-Spillable
The AGM design provides non-spillable operation under normal conditions.

↔️ Flexible Mounting
The supplied information states that the battery can be mounted in many positions, subject to correct installation requirements.

🔩 Type M Terminals
Uses the supplied Type M terminal configuration for compatible marine and vehicle installations.

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🚤 HIGH-PERFORMANCE MARINE POWER

The Optima BLUETOP D27M is designed for marine applications requiring dependable starting power, useful reserve capacity and rugged AGM construction.

Its 800CCA and 1000MCA ratings provide strong cranking capability, while the supplied 66Ah capacity and 140-minute reserve capacity provide useful stored energy for compatible electrical loads.

⚠️ IMPORTANT: Marine use alone does not confirm suitability. Always check the engine, vessel and charging-system requirements before installation.

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⚡ 800CCA COLD CRANKING POWER

Cold Cranking Amps: 800CCA

The supplied 800CCA rating indicates strong engine-starting capability under the applicable cold-cranking test conditions.

⚠️ IMPORTANT: Confirm the engine or vehicle manufacturer’s minimum required CCA before selecting a replacement battery.

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🚤 1000MCA MARINE CRANKING POWER

Marine Cranking Amps: 1000MCA

The supplied MCA rating provides a marine-focused measure of the battery’s starting-current capability.

This makes the D27M suitable for compatible marine applications where strong cranking performance is required.

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🔌 66AH C20 CAPACITY

Supplied C20 capacity: 66Ah

The C20 rating represents battery capacity measured over a 20-hour discharge test under specified conditions.

This capacity provides substantial stored energy for compatible marine, RV and accessory loads.

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⏳ 140-MINUTE RESERVE CAPACITY

Supplied reserve capacity at 25A: 140 minutes

Reserve capacity indicates how long the battery can support a specified electrical load under applicable test conditions.

Actual runtime will vary according to electrical load, temperature, battery condition and state of charge.

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🌀 OPTIMA SPIRALCELL TECHNOLOGY

Optima BLUETOP batteries use SpiralCell Technology rather than conventional flat-plate construction.

• Spiral-wound internal cell construction
• 99.99% pure lead
• Strong starting-current delivery
• Consistent electrical performance
• Strong vibration resistance
• Faster recharge capability

The supplied product information states that this construction delivers more power and consistently outperforms conventional flat-plate battery designs.

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🔄 FASTER RECHARGING

Fast recharge capability is one of the supplied benefits of the Optima BLUETOP range.

This can help the D27M restore battery charge efficiently after engine starting or electrical use when connected to a suitable charging system.

⚠️ IMPORTANT: Ensure the alternator, charger or battery-management system is suitable for AGM battery charging requirements.

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🔁 UP TO THREE TIMES MORE RECHARGES

The supplied product information states that BLUETOP batteries can provide up to three times more recharges than a traditional marine battery.

Actual cycle performance depends on depth of discharge, charging conditions, temperature, storage and overall battery management.

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💪 HIGH VIBRATION RESISTANCE

The supplied product information states that BLUETOP batteries can provide up to 15 times greater vibration resistance than a standard flooded battery.

This is particularly relevant to marine and mobile environments where vibration and movement can place additional stress on battery construction.

⚠️ IMPORTANT: Vibration resistance does not eliminate the requirement for a secure battery tray and appropriate hold-down system.

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⏱️ LONG-LIFE DESIGN

The supplied product information states service life of up to three times longer than standard flooded batteries under applicable operating conditions.

Actual service life will vary according to:

• Depth of discharge
• Frequency of cycling
• Charging-system performance
• Operating temperature
• Electrical loads
• Storage conditions
• Installation quality

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🛡️ AGM – ABSORBENT GLASS MAT CONSTRUCTION

The Optima BLUETOP D27M uses AGM battery technology.

AGM construction retains the electrolyte within absorbent glass mat separators rather than leaving free-flowing liquid inside the battery case.

• Maintenance-free operation
• Non-spillable construction
• Strong vibration resistance
• Flexible mounting options
• High starting-current capability
• Fast recharge performance

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🚐 RV & MOBILE APPLICATIONS

The supplied product information also positions the BLUETOP range for compatible recreational vehicle applications.

Its substantial 66Ah capacity, strong starting performance and useful reserve capacity can make it a practical option where compatible RV or mobile systems require a high-performance AGM battery.

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🔩 TYPE M TERMINALS

The BLUETOP D27M uses:

Terminal type: Type M

Confirm the exact Type M connection requirements, terminal positions, polarity and cable compatibility before purchase.

⚠️ IMPORTANT: Do not select the battery based only on voltage, CCA, MCA or dimensions. Terminal configuration and polarity must also match the intended installation.

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🧰 MAINTENANCE-FREE OPERATION

The AGM construction eliminates routine electrolyte topping-up associated with serviceable flooded batteries.

This provides convenient maintenance-free operation under normal use.

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💧 NON-SPILLABLE CONSTRUCTION

The supplied product information describes the BLUETOP range as completely non-spillable.

This provides greater installation flexibility than conventional flooded batteries containing free-flowing electrolyte.

⚠️ IMPORTANT: Always follow Optima and the vessel, vehicle or equipment manufacturer’s requirements regarding mounting orientation, battery restraint, ventilation and electrical installation.

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🚤 SUITABLE APPLICATIONS

• 🚤 Compatible boats
• 🛥️ Marine engine-starting applications
• 🚐 Compatible RVs
• 🏕️ Recreational vehicle electrical systems
• 🔌 Applications with substantial electrical loads
• ⚡ High-starting-current applications
• 🛠️ High-vibration environments
• 🔧 Compatible AGM battery upgrades
• 🔩 Applications requiring Type M terminals

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📏 DIMENSIONS & WEIGHT

Length: 12.19in

Width: 6.81in

Height: 8.75in

Weight: 53.8lb

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📋 TECHNICAL SPECIFICATIONS

Brand: Optima

Product: BLUETOP D27M AGM Marine Battery

Battery type: BLUETOP

Model: D27M

Battery chemistry: AGM

Cell technology: SpiralCell

Supplied lead purity: 99.99%

Nominal voltage: 12V

Starting power: 800CCA

Marine Cranking Amps: 1000MCA

C20 capacity: 66Ah

Reserve capacity at 25A: 140 minutes

Terminal type: Type M

Maintenance: Maintenance free

Spill protection: Completely non-spillable according to supplied product information

Mounting: Mountable in many positions according to supplied product information

Recharge characteristic: Faster recharging capability

Supplied recharge-cycle claim: Up to 3 times more recharges than a traditional marine battery

Supplied vibration-resistance claim: Up to 15 times greater than a standard flooded battery

Supplied service-life claim: Up to 3 times longer than standard flooded batteries

Length: 12.19in

Width: 6.81in

Height: 8.75in

Weight: 53.8lb

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⚠️ FITMENT CHECKLIST

Before purchasing the Optima BLUETOP D27M, confirm that the battery matches the physical, electrical and charging requirements of your boat, RV, vehicle or equipment.

• 12V electrical-system compatibility
• Model D27M suitability
• Required battery dimensions
• Available battery-compartment space
• Battery tray and hold-down arrangement
• Type M terminal compatibility
• Positive and negative terminal positions
• Battery-cable reach
• Required 800CCA starting rating
• Required 1000MCA marine cranking rating
• Required 66Ah capacity
• Required 140-minute reserve capacity
• AGM charging-system compatibility
• Engine, vessel or equipment manufacturer battery specification

⚠️ IMPORTANT: A matching physical size alone does not confirm compatibility. Terminal type, polarity, starting requirements, battery capacity, restraint and charging compatibility must also match.

⚠️ IMPORTANT: Secure the battery using an appropriate battery tray and restraint system before operating the boat, RV, vehicle or equipment.

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📦 WHAT’S INCLUDED?

• 🔋 1 × Optima BLUETOP D27M AGM Marine Battery – 12V 66Ah 800CCA 1000MCA

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❓ FREQUENTLY ASKED QUESTIONS

What is the Optima BLUETOP D27M?

The D27M is a 12V AGM marine battery designed to provide strong starting performance, substantial capacity and reliable runtime for compatible marine and RV applications.

How many CCA does the D27M provide?

The supplied cold-cranking rating is 800CCA.

What is the MCA rating?

The supplied Marine Cranking Amps rating is 1000MCA.

What is the battery capacity?

The supplied C20 capacity is 66Ah.

What is the reserve capacity?

The supplied reserve capacity is 140 minutes at a 25A load.

Is the BLUETOP D27M AGM?

Yes. It uses Absorbent Glass Mat battery technology.

What is SpiralCell Technology?

SpiralCell is Optima’s spiral-wound internal construction using 99.99% pure lead to support strong power delivery and durability.

Is it maintenance free?

Yes. Routine electrolyte topping-up is not required.

Is it non-spillable?

Yes. The supplied product information describes the BLUETOP range as completely non-spillable.

Can it be mounted in different positions?

The supplied information states that it can be mounted in many positions, subject to correct installation requirements.

Is it vibration resistant?

Yes. The supplied information states up to 15 times greater vibration resistance than a standard flooded battery.

Does it recharge quickly?

Yes. Faster recharge capability is one of the supplied BLUETOP benefits.

Does it provide more recharges than a traditional marine battery?

The supplied information states up to three times more recharges than a traditional marine battery under applicable conditions.

Is it suitable for a boat?

Yes. The supplied product information specifically positions the BLUETOP range for compatible marine applications.

Is it suitable for an RV?

Yes. Compatible recreational vehicle applications are also identified in the supplied product information.

What terminal type does the D27M use?

The supplied terminal specification is Type M.

Do I need to confirm the terminal configuration?

Yes. Confirm Type M terminal compatibility, terminal position, polarity and cable reach before ordering.

How long is the D27M?

The supplied length is 12.19 inches.

How wide is it?

The supplied width is 6.81 inches.

How tall is it?

The supplied height is 8.75 inches.

How much does it weigh?

The supplied weight is 53.8lb.

Can I replace a conventional flooded marine battery with the D27M?

Potentially, but not automatically. Confirm dimensions, Type M terminal configuration, starting requirements, capacity, hold-down arrangement and AGM charging-system compatibility before changing battery technology.

How long will the 66Ah battery run my accessories?

Actual runtime depends on the electrical load, battery condition, temperature and state of charge. The 66Ah C20 rating alone cannot guarantee a specific runtime.

What should I check before ordering?

Confirm the D27M model requirement, 12V voltage, dimensions, Type M terminals, polarity, 800CCA and 1000MCA requirements, 66Ah capacity, 140-minute reserve capacity, battery restraint and AGM charging compatibility.

What comes with the battery?

The supplied package information supports one Optima BLUETOP D27M AGM Marine Battery rated at 12V, 66Ah, 800CCA and 1000MCA.

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🚤 HIGH-CAPACITY AGM POWER FOR DEMANDING MARINE & RV APPLICATIONS

Choose the Optima BLUETOP D27M when you need strong marine starting power, substantial battery capacity and rugged AGM construction for a compatible boat, RV or mobile power application.

With 800CCA, 1000MCA, 66Ah C20 capacity, 140-minute reserve capacity, SpiralCell Technology, 99.99% pure lead and strong vibration resistance, the D27M is designed to deliver dependable power in demanding environments.

Confirm physical dimensions, Type M terminal configuration, starting requirements, reserve requirements and AGM charging-system compatibility before installation to ensure the BLUETOP D27M is correct for your application.