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

Manufacturer

MasterVolt

<h3>Mastervolt: Reliable Power for Life Off the Grid</h3><p>Founded in Amsterdam in 1991, <strong>Mastervolt</strong> has spent more than three decades engineering power management solutions for some of the most demanding environments on earth. From the rolling decks of offshore sailing vessels to the rugged interiors of expedition RVs and the critical systems of emergency and commercial vehicles, Mastervolt products are built around a single principle: power you can count on, wherever you are.</p><p>What sets Mastervolt apart is not just the breadth of its product lineup, but the depth of engineering behind each component. The brand's proprietary <strong>MasterBus</strong> communication network allows compatible devices — chargers, inverters, monitors, and converters — to talk to one another intelligently, enabling centralized system control and real-time diagnostics that were once reserved for large commercial vessels. Today, that same technology is accessible to leisure boaters, vanlifers, and off-grid homesteaders alike.</p><h3>Engineered for Lithium Ion and Beyond</h3><p>Mastervolt was among the early adopters of Lithium Ion battery technology in the marine and mobile power sector, and its chargers and monitoring systems are purpose-built to work seamlessly with modern lithium chemistries. Whether your system runs on AGM, Gel, or the latest Lithium Ion cells, Mastervolt has engineered a compatible solution. Their <a href="/11274-mastervolt-battery-charger-14307">battery chargers</a> span a wide range of applications — from entry-level waterproof units to professional-grade, multi-bank systems — all featuring the brand's hallmark 3-step+ charging methodology that protects battery longevity through precise bulk, absorption, and float phases.</p><p>For those who need full situational awareness of their power reserves, Mastervolt's line of <a href="/11274-mastervolt-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provides real-time insight into voltage, current, amp-hours consumed, and estimated remaining capacity. These devices range from straightforward panel-mount monitors to sophisticated MasterBus-integrated shunts capable of serving as the data hub for an entire onboard electrical system.</p><h3>Trusted Across Industries</h3><p>Mastervolt products meet a broad array of international standards, including CE, ABYC, UL, SOLAS/GMDSS, and NMEA 2000, making them a preferred choice not only for recreational users but also for commercial marine operators, infrastructure engineers, and industrial applications worldwide. It's a testament to the brand's commitment to building products that perform reliably at the intersection of safety, efficiency, and innovation.</p><ul style="list-style:disc"><li>Headquartered in Amsterdam, Netherlands — a global leader since 1991</li><li>Full ecosystem of compatible chargers, inverters, converters, batteries, and monitors</li><li>Supports AGM, Gel, and Lithium Ion battery chemistries</li><li>MasterBus, CZone, and NMEA 2000 integration for smart system management</li><li>Products certified to international marine and mobile standards</li></ul>

Part Number

62002700
09/12/2036 5:38 AM
Sale Price

$1,251.31

In Stock (6)

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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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