Mastervolt Mac Plus 24/12-50 DC-DC Charger with CZone Integration

Mac Plus 24/12-50 + CZone

Boost the Service Battery

Too often, service batteries dont get the charge they need. This is a problem made worse by smart alternators and start/stop systems, which result in slow and insufficient charges. The Mac Plus DC-DC charger solves this problem, providing a quick, safe, and consistent charge to the service battery. And, by knowing when the engine is running and providing charge, users can be sure that the Mac Plus will never drain a starter battery.

Proven Mastervolt Quality

Users get peace of mind knowing that they have the best on board. Using the proven Mastervolt 3-step+ charge algorithm, the Mac Plus delivers a quick and easy charge, even for completely flat batteries.

A robust design holds up in even the harshest conditions, with battery temperature-optimized charging and a high-quality aluminum housing to ensure superior protection against dust and water ingress. The power-efficient design also allows the Mac Plus to operate silently and without a fan.

Total Power Flexibility

With a wide DC input range, the Mac Plus allows for all DC sources and can charge two batteries from a single alternator or charger. It supports a full range of chemistries and battery types, including lithium. It also functions seamlessly with modern alternators such as Euro 5 and 6, ensuring proper charging by providing constant power, even when the alternator is inactive.

Parallel configuration of up to ten units will provide over 100 amperes. Advanced high-frequency technology with modern microprocessors ensures minimal power loss when switching from 12V to 24V and vice versa.

Analog voltage sense ports are also available to compensate for voltage drops and maintain proper charging.

Superior Monitoring Control

Compatibility with CZone, NMEA 2000, and MasterBus delivers truly superior monitoring and control and ensures Mac Plus integrates easily into complete systems. Achieve the best performance possible via various controllers and high-quality MOSFETs. And configure the Mac Plus with ease via MasterAdjust, the CZone configuration tool, or even via the on-board DIP switches.

Features:

• Fast and safe charging, even during short trips
• Fanless design for silent operation
• Suitable for flooded, Gel, AGM, and Li-Ion batteries (incl. LiFePO4)
• Even charges fully depleted batteries
• Engine run detection protects the starter battery
• Adjustable current limits to meet Euro 5/6 requirements
• Voltage stabilization protects sensitive equipment, lights, and loads
• Parallel operation to obtain charging capacities well over 100 Amps
• MasterBus, CZone, and NMEA 2000 are compatible for intelligent system monitoring and automation
• Temperature compensation and voltage sense for an optimal charging result
• E-Mark/R10 certification for mobile applications
• Power supply mode offers stable power for sensitive loads
• Heavy-duty connections for easy installation and quick setup via DIP switches

Specifications:

• Battery Temperature Sensor: Yes, included
• Battery Voltage Sense: Yes

General Specifications:

• Status Indicator: Yes, 3-color LED
• Communication Protocol: MasterBus, CZone NMEA 2000
• Output Voltage: 10-15 V
• Nominal Output Voltage: 12 V
• Output Voltage Stabilization: 2 % at extremes of temperatures, load, and input
• Output Voltage Ripple (peak-peak): Max. 1 %
• Max. Output Power: 750 W
• Nominal Output Power: 710 W
• Max. Output Current: 50 A
• Output Charge Current (3-step mode): 50 A
• Nominal Input Voltage: 24 V
• Input Voltage Range: 19-30 V
• Max. Input Current: 30 A
• Galvanic Isolation: No
• Voltage Limited: Yes
• Efficiency: > 95 % (at nom. input voltage, full load); peak 97
• Parallel Configuration: Yes
• Alarm Contact: Yes, through MasterBus
• MasterBus Powering: No
• Engine Run Signal Input: Yes (active high/active low)
• DIP Switches: Yes, for basic setup
• Dimensions, H x W x D: 255 x 165 x 66 mm (10.0 x 6.5 x 2.6 inch)
• Weight: 2 kg (4.4 lb)
• Compliance: CE, E-Mark, SAE J1171 ISO 8846 Ignition Protected

Technical Specifications:

• No-load Consumption: < 2 mA
• Charge Characteristic: 3-traps+
• Battery Types: Flooded, Gel, AGM, spiral, Lithium Ion, traction, user-defined
• 3-Step Charge Option: Yes (DIP switch settings)
• DC Consumption: < 5 mA
• Connections: 3 x M8 terminal for cable diameters of 10-50 mm, (positive input, positive output, joint negative connection) 8-pole screw connection for cable diameters of 0.75-1.5 mm (remote on/off, temperature sensor, voltage measurement
• Temperature Range (ambient temp.): -25 degrees C to 60 degrees C; derating > 40
• Cooling: Natural cooling
• Protection Degree: IP23
• Protections: Overload, over temperature, DC short circuit, reversed polarity (fuse)
• MasterBus Compatible: Yes

The Mastervolt Mac Plus 24/12-50 is a high-performance DC-DC charger designed to ensure your service battery receives a fast, safe, and reliable charge, even during short trips or in demanding conditions. Built with proven Mastervolt 3-step+ charging technology, this unit fully charges depleted batteries and supports a range of chemistries including flooded, Gel, AGM, lithium-ion, and LiFePO4, making it suitable for a variety of applications. Its robust aluminum housing and dust- and water-resistant IP23 rating provide durable protection for use in harsh environments. The fanless design ensures silent operation, reducing noise pollution aboard your vessel or vehicle.

Thanks to its wide input voltage range and advanced high-frequency technology, the Mac Plus can operate seamlessly with modern Euro 5 and 6 alternators, providing consistent power even when the alternator is inactive. Parallel configuration allows stacking up to ten units for over 100 amps of charging capacity, making it ideal for larger systems. The unit’s intelligent features include temperature compensation, voltage sense ports, and engine run detection to prevent drain on the starter battery and optimize charging performance. Compatibility with system monitoring protocols such as CZone, NMEA 2000, and MasterBus enables comprehensive system integration and control, which can be configured easily via MasterAdjust, CZone tools, or DIP switches.

Designed for flexibility, the Mac Plus offers adjustable current limits to comply with Euro 5/6 standards, voltage stabilization to protect sensitive electronics, and power supply mode for stable power delivery to loads. Its heavy-duty connections facilitate quick installation, and the unit's compact size makes it suitable for various onboard spaces. Certified with CE, E-Mark, and SAE J1171 standards, the Mac Plus meets rigorous safety and quality requirements, ensuring reliable performance and longevity in mobile and marine environments.

Features:

• Fast and safe charging, even during short trips

• Fanless design for silent operation

• Supports flooded, Gel, AGM, and Li-Ion batteries (including LiFePO4)

• Charges fully depleted batteries effectively

• Engine run detection to protect the starter battery

• Adjustable current limits to meet Euro 5/6 standards

• Voltage stabilization to protect sensitive equipment

• Parallel operation capability for over 100 Amps total charging capacity

• Compatible with MasterBus, CZone, and NMEA 2000 for system monitoring and automation

• Temperature compensation and voltage sense for optimal charging

• E-Mark/R10 certification for mobile applications

• Power supply mode provides stable power to sensitive loads

• Heavy-duty connections and quick setup via DIP switches