Meet the Mastervolt Mac Plus 24/24-30 + CZone DC to DC Charger, a rugged, silent, and highly intelligent solution designed to keep your service battery fully charged while protecting your starter battery. With a 24V input and 24V output, this 30A charger delivers fast, safe charging even on short trips, and its engine run detection ensures the alternator charges without draining your cranking power.
Key benefits at a glance:
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Fast, safe charging for service batteries, even from short trips, using the proven Mastervolt 3-step+ charge algorithm.
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Fanless, quiet operation with a robust, aluminum housing built to handle harsh environments and resist dust and water ingress.
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Broad battery compatibility supports flooded, Gel, AGM, and Li-Ion chemistries (including LiFePO4), and can fully charge even depleted cells.
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Engine run detection protects your starter battery and ensures charging only when the engine is running.
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Euro 5/6 ready with adjustable current limits to meet modern emission standards and electrical requirements.
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Voltage stabilization protects sensitive equipment, lights, and loads from voltage dips.
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Temperature compensation and voltage sense optimize charging efficiency across temperatures and voltage drops.
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Parallel operation configurations up to 10 units yield charging capacities well over 100A, ideal for larger systems.
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Advanced networking compatibility with MasterBus, CZone®, and NMEA 2000® for intelligent monitoring and automation.
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E-Mark/R10 certified for mobile applications, ensuring suitability for marine use.
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Power supply mode provides stable power for sensitive loads when the engine isn’t running.
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Rugged installation with heavy-duty connections and simple setup via DIP switches or MasterAdjust and CZone configuration tools.
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Analog voltage sense ports compensate for voltage drop and maintain optimal charging.
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Included battery temperature sensor and battery voltage sense to maximize charging performance.
Designed to work seamlessly with modern alternators and smart systems, the Mac Plus 24/24-30 delivers reliable, efficient charging while safeguarding both your service and starter batteries. Upgrade your onboard power with a proven Mastervolt solution and enjoy peace of mind on every voyage.
| Specifications battery charger |
| 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 |
20-30 V |
| Nominal output voltage |
24 V |
| Output voltage stabilisation |
2 % at extremes of temperatures, load and input |
| Output voltage ripple (peak peak) |
max. 1 % |
| Max. output power |
850 W |
| Nominal output power |
810 W |
| Max. output current |
30 A |
| Output charge current (3-step mode) |
30 A |
| Nominal input voltage |
24 V |
| Input voltage range |
10-16 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, hxwxd |
10.0 x 6.5 x 2.6 inch |
| Weight |
4.4 lb |
| 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 °C to 60 °C; derating > 40 |
| Cooling |
natural cooling |
| Protection degree |
IP23 |
| Protections |
overload, over temperature, DC short circuit, reversed polarity (fuse) |
| MasterBus compatible |
yes |
