SKU: 45112845540

Mastervolt Mac Plus 12/24-30 Dc-dc Converter 12v Input 30a 24v Output Czone

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Description

Mastervolt Mac Plus 12/24-30 Dc-dc Converter 12v Input 30a 24v Output Czonemastervolt Mac Plus 12 24 30 + Czone DC to DC Converter Model: 81205305 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 starter battery Adjustable current limits to meet Euro 5 6 requirements Voltage stabilization protects sensitive equipment, lights and loads Parallel operation to

mastervolt Mac Plus 12/24-30 + Czone DC to DC Converter

Model: 81205305
  • 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 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 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 set up via DIP switches

Too often, service batteries don’t 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 your service battery. And, by knowing when the engine is running and providing charge, you can be sure that the Mac Plus will never drain your starter battery.

Get peace of mind, knowing that you’ve got the best on-board. Using the proven Mastervolt 3-step+ charge algorithm, the Mac Plus delivers a quick and easy charge, even to completely flat batteries.

A robust design holds up in even the harshest conditions, with battery temperature optimized charging and high-quality aluminium 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.

With a wide DC input range, the Mac Plus allows 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. And 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. And 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 drop and maintain proper charging.

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.

Specifications
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 725 W
Nominal output power 675 W
Max. output current 30 A
Output charge current (3-step mode) 30 A
Nominal input voltage 12 V
Input voltage range 10-16 V
Max. input current 50 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
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 45112845540

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zak
Fort Morgan, US
★★★★★ 5
Obvious deduction with roots in both new and old archeology.
Format: Paperback
The Iron Age seemed to have its beginning several hundred years earlier than has been officially declared. That was my assumption after researching for a historical fiction novel during 1750 B.C.E. period. I began the current research in January of 2013. I'm not a archeologist, have no desire to be one. I'm not related to any archeologists. But I respect the the discipline, scholarship and dedication required to be a good one. After a year of research discovery my girlfriend was well versed with my newly formed assumption about the chronology of these times verses the old school beliefs. Referencing some material in this vain of research I stumbled across Rohl's work. To my utter delight I find out there has been a N.C. movement growing for twenty years. Good work and plausible scenarios are laid out for pure intellectual amazement and entertainment for the imagination inside these pages. Buy it now. Enjoy Zak
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Reviewed in the United States on March 19, 2014
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TJez
Fort Morgan, US
★★★★★ 5
A must have for collage
Format: Spiral-bound
This book is a must have for collage courses. Easy to reference and find examples on how to reference sources. A lot of valuable information. Bought one for each of my kids.
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Reviewed in the United States on April 28, 2026
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Sara Jane
Charlottesville, US
★★★★★ 5
Easy to navigate!
Format: Spiral-bound
Very good for school! Very sturdy and the pages are just thick enough
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Reviewed in the United States on May 19, 2026
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Shelley Plumlee
Massapequa, US
★★★★★ 5
Really Helpful and Easier to Use Than I Expected
Format: Paperback
I bought the APA 7th Edition manual for my college research papers, and it’s been a lifesaver. Compared to the older edition, this one feels much clearer and way easier to navigate. The full-color layout and the examples throughout really help when I’m stuck on how to format citations or references. I especially appreciate the new sections tailored for students like me—it’s not just for professional writers anymore. Plus, the tips on inclusive language made me think more carefully about how I write. It’s definitely a dense read if you try to go cover-to-cover, but as a reference book, it’s super practical. The only downside is that it’s a bit pricey, but for the quality and how often I use it, it’s totally worth it. If you’re in school or need to write APA-style papers regularly, I’d recommend grabbing this manual. It makes the whole process less stressful.
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Reviewed in the United States on August 8, 2025
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Emily S
Houston, US
★★★★★ 5
Very helpful for writing research papers!
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I bought this to help with writing papers for grad school. It's now a staple on my desk! Very helpful.
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Reviewed in the United States on March 13, 2026

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