Mastervolt Mass 24/50-2

The Mass 24/50-2 battery charger is engineered to deliver unparalleled performance in the demanding marine environment. Whether you are a professional mariner, a semi-professional, or a recreational boater, this charger ensures a reliable and continuous power supply, even under the toughest conditions.

Unmatched Durability and Reliability

The Mass series from Mastervolt is synonymous with resilience and steadfast performance. With an impressive Mean Time Between Failures (MTBF) of 180,000 hours at full capacity and continuous 24/7 operation, the Mass 24/50-2 is built to handle the most strenuous marine applications. Its robust construction features a lightweight stainless steel and anodized aluminium casing, ensuring longevity and resistance to the corrosive marine environment.

Key Features

• Designed for Extreme Conditions: Built to withstand heavy vibrations, shocks, and harsh marine environments.
• Durable Construction: Lightweight stainless steel and anodized aluminium casing for enhanced durability.
• Enhanced Longevity: Internal component coating prevents damage from dampness and condensation.
• Electromagnetic Immunity: Resistant to interference from other electronic devices onboard.
• Versatile Charging: Compatible with all battery types, including fully discharged batteries.
• Temperature Control: Equipped with a standard temperature sensor and operates at full power up to 45°C.
• High Load Capacities: Supports load capacities from 80 to 1000 Ah or more, catering to various power needs.
• Stable Power Supply: Provides ripple-free 24V and 48V power, even without batteries connected.
• Safety Features: Current Control function prevents fuse breakage during voltage drops.
• Expandable System: Allows parallel switching with multiple battery chargers for increased capacity.
• Certified Connections: Compliant with CE, ABYC A-31, and IEC60945 standards.
• Industry Certifications:
  • RRR, RMRS (excludes 24/75 120 V)
  • DNV GL (available for 24/25, 24/50, 24/75, 24/75 (120 V), 24/100 models)
  • Lloyd (available for 24/75, 24/100 models)

Professional Marine Features

GMDSS Compliance: The Mass 24/50-2 is equipped with a front display featuring GMDSS (Global Maritime Distress and Safety System) alarm functions, essential for professional maritime operations. GMDSS is an internationally recognized safety system mandated by the SOLAS (Safety Of Life At Sea) convention, utilizing DSC and satellite communication to ensure maritime safety.

This feature is available on the following models:

• Mass 24/25-2 DNV
• Mass 24/50-2
• Mass 24/75
• Mass 24/75 (120 V)
• Mass 24/100
• Mass 24/100-3ph

Optimized for Lithium Ion Batteries

The Mass 24/50-2 is fully compatible with Lithium Ion batteries, which are becoming increasingly popular in marine applications. Mastervolt’s integrated MasterBus communication ensures precise and efficient charging by directly interfacing with Lithium Ion batteries, maintaining optimal charging voltages for enhanced performance and safety.

MasterBus Integration

Seamlessly integrate the Mass 24/50-2 into a MasterBus network using a single cable and connection. This integration allows for centralized, local, or remote monitoring, configuration, and control, simplifying system management and enhancing your ability to monitor power usage and battery status effectively.

Rugged Design for Marine Use

The certified Mass battery chargers are built to endure the rigors of marine environments, including heavy vibrations and shocks. Utilizing premium quality components that meet the highest marine specifications, the Mass 24/50-2 ensures a professional and reliable power supply in any maritime setting.

Safety and Compliance

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Additional Resources

Owner's Manual (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.