About this product
Brand: Mastervolt
Model: Mac Plus 12/24-30
Part Number: 81205305
Type: DC-DC Converter
Description:
Service batteries often struggle to receive adequate charging, a problem exacerbated by smart alternators and start/stop systems that result in slow and insufficient charges. The Mastervolt Mac Plus 12/24-30 DC-DC charger addresses this issue by providing a quick, safe, and consistent charge to your service battery. By detecting when the engine is running, the Mac Plus ensures it never drains your starter battery, maintaining optimal performance.
Proven Mastervolt Quality:
Rest easy knowing you have the best on-board. The Mac Plus utilizes the renowned Mastervolt 3-step+ charge algorithm, delivering a fast and efficient charge, even to completely flat batteries. Its robust design withstands the harshest conditions, featuring battery temperature-optimized charging and a high-quality aluminum housing that offers superior protection against dust and water ingress. The power-efficient design allows the Mac Plus to operate silently and without a fan, ensuring a quiet and reliable performance.
Total Power Flexibility:
The Mac Plus offers a wide DC input range, accommodating all DC sources and enabling the charging of two batteries from a single alternator or charger. This ensures proper charging by providing constant power, even when the alternator is inactive. Advanced high-frequency technology and modern microprocessors ensure minimal power loss when switching between 12V and 24V. Additionally, analog voltage sense ports are available to compensate for voltage drop, maintaining proper charging levels.
Superior Monitoring & Control:
The Mac Plus is compatible with CZone®, NMEA 2000®, and MasterBus, offering superior monitoring and control. This compatibility ensures that the Mac Plus integrates easily into complete systems, providing the best performance possible through various controllers and high-quality MOSFETs. Configuration is straightforward with MasterAdjust, the CZone configuration tool, or the on-board DIP switches, allowing for easy setup and adjustments
Technical Specifications:
- Input Voltage: 12/24 V
- Output Voltage: 12/24 V
- Charge Current: 30 A
- Protection Rating: IP65
- Material: High-quality aluminum housing
Compatible Van Series:
- 3750 series vans (located under the driver’s seat)
- 4000 series vans (located in the rear electrical cabinet)
Benefits:
With the Mastervolt Mac Plus 12/24-30 DC-DC Converter (81205305), you can be confident that your service battery will receive the charge it needs, ensuring your vehicle’s systems remain reliable and efficient.






