The Mastervolt Mass Battery Charger is the perfect solution for professional, semi-professional, and recreational settings, offering a reliable power supply in the toughest conditions.

The Mastervolt Mass Battery Charger is the top choice for those who need a durable and reliable power supply, no matter the situation. Designed to withstand the toughest conditions, the Mass series is ideal for professional, semi-professional, and recreational purposes. Thanks to its sustainable and proven technologies, these chargers have a long lifespan and can operate 24/7 without any issues.

One of the standout features of the Mastervolt Mass Battery Charger is its GMDSS compatibility. This means that it meets the requirements of the Global Maritime Distress and Safety System, making it perfect for use on boats and other marine vessels. Additionally, these chargers are lightweight and have a stainless steel and anodised aluminium casing, making them resistant to damage from dampness or condensation.

GMDSS Compliance:

Designed to meet the stringent requirements of the Global Maritime Distress and Safety System (GMDSS), ensuring adherence to SOLAS regulations. Enables monitoring of various alarm functions for enhanced safety at sea. Compatible with separate GMDSS remote panels for seamless integration.

Lithium Ion Battery Charging:

Ensures clarity and precision in charging Lithium Ion batteries, a popular choice for marine applications. Direct communication between Mastervolt battery chargers and Lithium Ion batteries via integrated MasterBus technology, or adaptation to required charging voltages, eliminates ambiguity in the charging process.

MasterBus Compatibility:

Simplifies connectivity by enabling easy integration into a MasterBus network with a single cable and connection. Offers flexible monitoring, configuration, and control optionschoose between central, local, or remote management of your system.

Robust Design for Durability:

Certified Mass battery chargers are engineered for resilience, capable of withstanding heavy vibrations and shocks encountered in demanding marine environments. Premium quality components ensure adherence to the highest specifications, while intelligent and robust mounting solutions contribute to a professional end result.

Features

Designed for tough conditions
GMDSS compatible
Suitable for all types of batteries
Current Control function
MasterBus compatible

(MV4002)

Description	Mass 24/25-2	Mass 24/25-2 DNV	Mass 24/50-2	Mass 24/75	Mass 24/100
Code	40020256	40720266	40020506	40020756	40021006
General Specifications
Nominal output voltage	24V
Total charge current	25A at 28.5V	25A at 28.5V	50A at 28.5V	75A at 28.5V	100A at 28.5V
Number of battery outlets	2	2	2	1	1
Charge current second output	3A	3A	3A	n.a.	n.a.
Recommended battery capacity	50–250Ah	50–250Ah	100–500Ah	150–750Ah	200–1000Ah
Nominal input voltage	230V (180–265V) – 50/60Hz	230V (180–265V) – 50/60Hz	230V (180–265V) – 50/60Hz	230V (180–265V) – 50/60Hz	230V (180–265V) – 50/60Hz
Supplies your system without battery	yes
Display/read-out	LED display
Dimensions, H x W x D mm	325 x 220 x 111	365 x 220 x 111	340 x 261 x 130	340 x 261 x 130	340 x 261 x 130
Weight kg	3.3	3.5	4.6	7.7	7.7
Approvals*	CE, ABYC A-31, RRR, RMRS	CE, E-mark, ABYC A-31 / RRR, RS, DNV	CE, E-mark, ABYC A-31 / RRR, RS	CE, E-mark, ABYC A-31 / RRR, RS, Lloyds, Bureau Veritas, Germanischer Lloyds	CE, E-mark, ABYC A-31 / RRR, RS, Lloyds, Bureau Veritas, Germanischer Lloyds
Technical Specifications
Temperature sensor	yes (included)
Charge Characteristic**	IUoUo, automatic / 3-step for gel/AGM/wet/Lithium Ion
DC Voltage drop compensation			yes	yes
DC consumption	<1 mA
Full load consumption (230V AC)	880 W	880 W	1800 W	2600 W	3500 W
Cos phi	>0.95
Temperature range (ambient temp.)	-25°C–80°C, >45°C derating
Cooling	vario fan
Protection degree	IP23
Protections	over temperature, over load, short circuit, high/low battery voltage
MasterBus compatible	yes
Charger Status Interface (alarm contact)	yes