My Account
Shopping Cart

Mastervolt 62000550 AGM 12/55 Group 24 Dual Purpose Sealed Marine Battery 55Ah

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

62000550
07/12/2036 11:13 PM
Sale Price

$262.30

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Mastervolt 62000550 AGM 12/55 Group 24 is a 12V, 55Ah sealed Absorbed Glass Mat (AGM) marine battery engineered to serve dual roles as both a starter battery and a service (deep cycle) battery. With a 400A CCA (SAE) rating, it delivers the powerful cold-cranking performance needed for engine starting, side thrusters, and windlasses, while its robust plate construction also supports medium cyclical loads such as onboard lighting, instrumentation, and entertainment systems.

In AGM batteries, the electrolyte — a mixture of water and sulfuric acid — is fully absorbed into layers of glass-fiber matting. This sealed, valve-regulated design means the battery is entirely maintenance-free, produces no gas under normal use, and eliminates the risk of acid spills or terminal corrosion. Because it requires no ventilation, it can be mounted in virtually any orientation or location aboard a vessel (except completely inverted).

Key Features:

  • Dual Purpose: Functions as both a starter battery and a service/house battery in one unit
  • 400A CCA (SAE): Excellent starting performance, even after extended periods of inactivity or winter storage
  • 55Ah Capacity: 12V DC output with a maximum charge current of 15.3A
  • Glass-Fiber Technology: Low internal resistance for fast discharge at high currents
  • Thicker Plates: Extended lifespan and improved deep-discharge tolerance compared to standard AGM batteries
  • Maintenance-Free: No water top-offs, no fumes, no ventilation requirements
  • Low Self-Discharge: Approximately 3% per month — retains charge during off-season storage
  • Universal Terminal Compatibility: Removable battery poles compatible with every standard battery terminal
  • 3-Step Plus Charging Compatible: Works with Mastervolt and other quality multi-stage chargers
  • Drop-In Upgrade: A direct replacement for flooded lead-acid batteries in Group 24 applications
  • Two-Year Warranty

The Mastervolt AGM 12/55 is a proven, maintenance-free upgrade over conventional flooded lead-acid batteries. Its sealed construction, long service life, and flexible mounting options make it an ideal choice for marine, RV, and powersports applications where reliability and space efficiency matter.

Products specifications

Battery Type

AGM

Dimensions

8 1/4" Width x 5 1/4" Height x 10 1/8" Length

Group Size

Group 24

Type

Tapered Stud

Voltage

12 Volts DC

Amperage Hours

55

Best Use

Dual Purpose

Cold Cranking Amps

480 CCA

Marine Cranking Amps

480 MCA

Reserve Minutes

80

Warranty Details

Two Years

Fantastic, in stock, best price, fast shipping with good communications

Quick and easy ordering, check out and fast shipping.

FAST AND GOOD PRICE

Good experience. My tires were exactly what I ordered and I got a great deal.

Smooth transaction . Got it a day later but received it . Paid extra for early delivery which didn't happen

Super fast and easy

Thanks

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy