Mastervolt Mass 24/25-2 25 Amp 24V Battery Charger for Heavy-Duty Marine and Industrial Use

Mass 24/25-2 25 AMP 24V Battery Charger

The right choice for demanding conditions

Mass battery chargers are designed for the toughest conditions for professional, semi-professional, and recreational purposes. Even under the most extreme conditions, the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary. The sustainability and technologies underpinning the Mass concept have long been proven. With an MTBF of 180,000 hours at full capacity and 24/7 use, the Mass products are ideal for the toughest tasks and any situation that requires a reliable power supply.

Powerful selling points:

• Designed for the most difficult conditions.
• Lightweight, stainless steel, anodized aluminum casing.
• Coating of internal components prevents damage from dampness or condensation to ensure a longer lifespan.
• Insensitive to electromagnetic effects from other devices.
• Suitable for every type of battery, it also charges flat batteries.
• It is delivered as standard with a temperature sensor.
• Full power at temperatures of up to 45 degrees.
• Load capacities from 80 to 1000 Ah or more.
• Stable and ripple-free power supply, even without batteries.
• The Current Control function prevents the breakdown of fuseswhen the voltage drops.
• Parallel switching is possible using multiple battery chargers.
• Connections in accordancewith CE, ABYC A-31 and IEC60945.
• GMDSS models and panels available.
• Certified by RRR, RMRS (does not apply to 24/75 120 V).
• Certified by DNV GL (only 24/25, 24/50, 24/75, 24/75 (120 V), 24/100 models).

GMDSS Compatible

The Mass series are designed for the most demanding situations. To help you comply with SOLAS regulations, all Mass battery chargers are GMDSS compatible. GMDSS stands for Global Maritime Distress and Safety System and allows users to monitor various alarm functions. GMDSS versions of the Mass 24/25 DNV, Mass 24/50, Mass 24/75, Mass 24/100, and Mass 24/100-3ph are available.

A separateremote panelis available, which is compatible with all Mass battery chargers.

A single front display with GMDSS remote panel is available for:

• Mass 24/25-2 DNV
• Mass 24/50-2
• Mass 24/75, Mass 24/100, Mass 24/100-3ph

Charging Lithium Ion batteries

Although Lithium Ion batteries are increasingly popular, there can be a lack of clarity when it comes to the charging process. This is not a problem with Mastervolt as the Mastervolt battery chargers communicate directly with the Lithium Ion battery via the integrated MasterBus (or have been adapted to the required charging voltages).

MasterBus compatible

Mass battery chargers can be easily connected to a MasterBus network with only one cable and one connection. You can also choose central, local, or remote monitoring, configuration, and control of your system.

Made tough by smart design

The certified Mass battery chargers are very strong and designed to withstand heavy vibrations and shocks. Their premium quality components meet the highest possible specifications, while the smart and extra robust mounting adds to the professional end result.

Specifications:

• Nominal output voltage: 24v
• Total charge current: 25a at 28.5v
• Number of battery outlets: 2
• Charge current second output: 2a
• Battery bank size: 50-250 ah
• Nominal input voltage: 230v (180-265v), 50/60 Hz
• Power supply mode: Yes
• Galvanic isolation: Yes
• Display/read-out: LED display

The Mastervolt Mass 24/25-2 is a high-performance 24V battery charger designed to meet the demands of professional, semi-professional, and recreational environments. Built with a lightweight stainless steel and anodized aluminum casing, this charger offers durability and resistance to harsh conditions. Its internal components are coated to prevent damage from dampness and condensation, ensuring a long lifespan even in challenging environments. This robust design makes it suitable for use in marine, industrial, and other demanding applications where reliable power is essential.

Equipped with a powerful 25 amp output, the Mastervolt Mass charger delivers stable, ripple-free power even without batteries connected, and can handle load capacities from 80 to over 1,000 Ah. Its temperature sensor allows full operation at ambient temperatures up to 45 degrees Celsius, providing flexibility in different climates. The charger features a current control function that prevents fuse blowouts during voltage drops and supports parallel operation with multiple units for increased capacity. Certified according to international standards, including CE, ABYC A-31, and IEC 60945, the Mass 24/25-2 is also compatible with GMDSS systems, making it suitable for maritime safety applications.

Designed for compatibility with a variety of battery types, including lithium-ion batteries, the charger communicates directly with batteries via the integrated MasterBus system, simplifying system management and enabling remote monitoring and control. It includes a standard temperature sensor for optimal charging and is galvanically isolated for safety. The unit features a user-friendly LED display and can be integrated into a MasterBus network with minimal effort, providing flexible configuration options. Its smart, heavy-duty design ensures resistance to vibrations and shocks, making it an ideal choice for demanding environments where reliable, continuous power is critical.

Features:

• Designed for the toughest conditions with durable stainless steel and anodized aluminum casing

• Coated internal components prevent damage from dampness and condensation

• Powerful 25 amp output with ripple-free, stable power supply

• Full operation at ambient temperatures up to 45°C

• Supports load capacities from 80 to over 1,000 Ah

• Includes a temperature sensor for optimal charging performance

• Current control feature prevents fuse blowouts during voltage drops

• Parallel operation capability with multiple units

• Certified according to CE, ABYC A-31, IEC 60945, and other standards

• GMDSS compatible for maritime safety applications

• Communicates directly with lithium-ion batteries via MasterBus

• Galvanic isolation for safe operation

• User-friendly LED display for easy monitoring and control

• Heavy-duty design resistant to vibrations and shocks