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Mastervolt 62002700 AGM 12/270 Group Super 8D 270Ah Sealed Marine Battery

Manufacturer

MasterVolt

<h3>MasterVolt: Autonomous Power Solutions for Demanding Applications</h3><p>MasterVolt has earned its reputation as a global leader in autonomous electrical power systems by combining cutting-edge technology with uncompromising reliability. As specialists in the management, conversion, and storage of electrical energy, MasterVolt offers a comprehensive product portfolio with a power range from 300 W to 40 kWatt, making them a trusted choice for marine, RV, industrial, and off-grid applications where dependable power is non-negotiable.</p><p>Part of the Navico Group, MasterVolt benefits from decades of engineering excellence and a deep understanding of harsh operating environments. The brand's philosophy centers on providing integrated electrical systems that work seamlessly together, from power generation and storage to conversion and intelligent monitoring. With offices and partners in more than 80 countries, MasterVolt delivers global support backed by local expertise, ensuring customers have access to technical assistance wherever their adventures or operations take them.</p><h3>Engineered for Performance in Extreme Conditions</h3><p>What distinguishes MasterVolt from competitors is their systems-focused approach to electrical power. Rather than selling isolated components, MasterVolt designs products that communicate through their proprietary MasterBus platform, enabling comprehensive system monitoring and control. This integration is particularly valuable in complex installations where multiple power sources, battery banks, and loads must work in harmony.</p><p>The brand's product lineup addresses every aspect of autonomous power management. Their advanced <a href="/11274-mastervolt-battery-chargers-200141">battery chargers</a> utilize sophisticated multi-stage charging algorithms optimized for various battery chemistries, from traditional AGM to cutting-edge lithium-ion technologies. These chargers are engineered to maximize battery life while minimizing charging time—a critical consideration for users who depend on limited generator runtime or solar input.</p><p>Equally important to any robust electrical system are <a href="/11274-mastervolt-battery-isolators-voltage-sensitive-relays-200144">battery isolators and voltage sensitive relays</a>, which intelligently manage current flow between multiple battery banks. MasterVolt's approach to battery isolation ensures that essential loads always have priority access to power while auxiliary batteries charge efficiently when surplus capacity is available. This intelligent power distribution prevents the all-too-common scenario of a depleted starting battery.</p><h3>Trusted in the World's Most Demanding Environments</h3><p>MasterVolt specializes in managing, monitoring, converting and storing power for marine, mobile and industrial applications, environments where equipment faces constant vibration, temperature extremes, moisture exposure, and the consequences of power system failure can be severe. Their products are built to withstand these challenges while maintaining precise voltage regulation and clean power output that protects sensitive electronics.</p><p>Whether powering a blue-water cruising yacht, equipping an overland expedition vehicle, or providing backup power for critical infrastructure, MasterVolt delivers the reliability and performance that professionals demand. Their commitment to innovation ensures that every product represents the latest advances in power electronics, energy efficiency, and user-friendly operation.</p>

Part Number

62002700
07/12/2036 10:20 PM
Sale Price

$1,186.39

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Mastervolt AGM 12/270 (Group Super 8D) is a heavy-duty, 12-volt, 270Ah sealed AGM marine battery engineered to serve as both a high-output starter battery and a reliable house/service battery. Its dual-purpose design makes it an ideal all-in-one power solution for marine, RV, and off-grid applications where dependability and safety are paramount.

In AGM (Absorbed Glass Mat) batteries, the electrolyte—a mixture of water and sulphuric acid—is fully absorbed into layers of glass-fiber matting. This construction eliminates free liquid inside the case, making the battery completely spill-proof and safe to install in virtually any orientation or location aboard a vessel, including enclosed compartments. There is no off-gassing under normal operating conditions, removing the need for dedicated battery ventilation.

Key Features:

  • Dual-Purpose Performance: Delivers short, high-current bursts for engine starting, bow thrusters, and winches, while also tolerating medium cyclical discharge for lighting, instrumentation, and onboard electronics
  • 270Ah Capacity (C20): Rated at 270 amp-hours over a 20-hour discharge rate to 10.5V — substantial reserve capacity for extended use
  • High Cold Cranking Amps: 1,200A CCA (SAE) / 750A CCA (DIN) for reliable engine starts in all conditions
  • Glass-Fiber Technology: Fiberglass matting ensures low internal resistance for efficient power delivery and faster recharge
  • Thicker Plates: Reinforced plate construction extends overall battery lifespan compared to standard lead-acid designs
  • Maintenance-Free: No water addition required; entirely sealed and valve-regulated to prevent acid leaks and terminal corrosion
  • Low Self-Discharge: Approximately 3% monthly self-discharge rate keeps the battery ready even after extended storage
  • Flexible Terminal Configuration: M8 removable terminal posts are compatible with all standard battery terminals, simplifying installation and cable routing
  • Superior Upgrade Path: Provides equivalent starting power to a much larger flooded lead-acid battery — an AGM 12/90Ah delivers the same initial surge as a 180Ah flooded unit
  • Group Super 8D Form Factor: Industry-standard sizing for straightforward replacement of conventional Group 8D batteries
  • Two-Year Warranty

Specifications:

  • Voltage: 12V DC
  • Capacity (C20): 270Ah
  • Max Charge Current: 76.5A
  • CCA (SAE): 1,200A
  • CCA (DIN): 750A
  • Battery Terminals: M8 / A-type
  • Dimensions (L x W x H, incl. handles): 20.6" x 10.6" x 8.9"
  • Weight: 161 lbs (73 kg)

The Mastervolt AGM 12/270 is a premium drop-in replacement for flooded lead-acid Group 8D batteries, combining the safety and convenience of sealed AGM technology with the high power output demanded by serious marine and commercial applications.

Products specifications

Battery Type

AGM

Dimensions

9 5/8" Width x 10 5/8" Height x 20 5/8" Length

Group Size

Group 8D

Type

Tapered Stud

Voltage

12 Volts DC

Amperage Hours

270

Best Use

Dual Purpose

Cold Cranking Amps

1600 CCA

Marine Cranking Amps

1600 MCA

Reserve Minutes

600

Warranty Details

Two Years

none

all was great!

Tires in the add show studded tires but what I received was studdless tires . Will talk to THM Motorsport after this. But price was great

Quick shipping, great product

Very very fast delivery

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