Installment options at checkout are provided by Shop Pay and its partners and are subject to eligibility. Options depend on your purchase amount and may require a credit check by the financing partner. Terms, rates, and eligibility are determined by the financing partner. For details, see the Shop Pay Installments terms during checkout.
Mac Plus 12/48-15
Boost Your 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 48V and 36V solve that problem. With brand-new bi-directional technology, the Mac Plus can use each side as an input or output, delivering a reliable and consistent charge to both service and starter batteries.
Proven Mastervolt Quality
The Mac Plus uses the proven Mastervolt 3-step+ charge algorithm, delivering a quick and easy charge, even to completely flat batteries. By knowing when the engine is running and providing charge, you can also be sure that the Mac Plus will never drain your starter battery.
A robust design holds up in even the harshest conditions, with battery temperature-optimized charging and 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 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. And advanced high-frequency technology with modern microprocessors ensures minimal power loss when switching from 36/48V to 12/24V 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:
- Bi-directional technology
- Get either 48V or 36V power from a single unit
- 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 compatible, with 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
General Specifications:
- Battery Voltage Sense: Yes
- Status indicator: Yes, 3 color double LED
- Communication protocol: MasterBus, CZone NMEA 2000
- Output voltage: 30-60 V DC
- Nominal output voltage: 36/48 V
- Output voltage stabilization: 2 % at extremes of temps, load, and input
- Output voltage ripple (peak-peak): Max. 1 %
- Max. output power: 900 W
- Max. output current: 15 A
- Nominal input voltage: 12 V DC
- Input voltage range: 8-16 V
- Max. input current: 60 A
- Galvanic isolation: No
- Efficiency: > 95 % (at nom. input voltage, full load); 97 % peak
- Parallel configuration: Yes, up to 4
- Alarm contact: Yes, through MasterBus, CZone, DIP Switch, or remote switch
- Engine run signal input: Yes (active high/active low)
- DIP switches: Yes, for basic setup
- Dimensions, hxwxd: 255x165x66 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, ABYC UKCA
Technical Specifications:
- Battery types: Gel, AGM, Lithium Ion, user-defined
- Power consumption: < 5 mA, < 10 mA in CZone, < 1 mA in MasterBus
- Temperature range (ambient temp.): - 25 C to 60 C; derating > 40 C/104 F
- Cooling: Natural cooling
- Protection degree: IP23
- Protections: Overload, over-temperature, DC short circuit, reversed polarity (fuse)
Mastervolt Mac Plus 12/48-15 is a bi-directional DC-DC battery charger designed to provide dependable charging between a 12-volt starter battery system and 36- or 48-volt service battery systems. It is well suited for mobile and marine applications that use smart alternators, start/stop systems, or short engine-running periods where conventional charging may be insufficient.
Using Mastervolt’s proven 3-step+ charging algorithm, the Mac Plus delivers fast, controlled charging to supported battery chemistries, including Gel, AGM, lithium-ion, and user-defined battery types. Engine-run detection helps prevent the starter battery from being drained, while adjustable current limits support operation with modern Euro 5 and Euro 6 alternators. Its voltage stabilization and power supply mode help provide consistent DC power for sensitive equipment, lighting, and other loads.
The fanless, naturally cooled design operates quietly and uses a durable aluminum housing for protection in demanding environments. Battery temperature compensation and voltage-sense connections help optimize charging performance, while MasterBus, CZone, and NMEA 2000 compatibility enables system monitoring, configuration, and control. The Mac Plus can also be configured using onboard DIP switches, and multiple units can be used in parallel for higher charging capacity.
Key Features:
-
Bi-directional charging: Allows either side of the unit to function as an input or output for flexible starter and service battery charging.
-
36V or 48V output: Provides selectable nominal output voltage from a 12V DC input system.
-
Broad battery compatibility: Supports Gel, AGM, lithium-ion, including LiFePO4, and user-defined battery types.
-
Smart charging control: Includes engine-run detection, adjustable current limits, temperature compensation, and voltage sensing.
-
Quiet, efficient operation: Fanless natural cooling and efficiency of more than 95% at nominal input voltage and full load.
-
System integration: Compatible with MasterBus, CZone, and NMEA 2000 for monitoring and control.
Product Details:
-
Brand: Mastervolt
-
Model: Mac Plus 12/48-15
-
Part number: 81203205
-
Nominal input voltage: 12V DC
-
Input voltage range: 8–16V DC
-
Nominal output voltage: 36/48V
-
Output voltage range: 30–60V DC
-
Maximum output power: 900W
-
Maximum output current: 15A
-
Maximum input current: 60A
-
Cooling: Natural cooling
-
Protection rating: IP23
-
Communication: MasterBus, CZone, and NMEA 2000
-
Parallel configuration: Up to 4 units
-
Operating temperature: -13°F to 140°F, with derating above 104°F
-
Certifications and compliance: CE, E-Mark, SAE J1171, ISO 8846 ignition protected, ABYC, and UKCA
-
Weight: 4.4 lb
Choose the Mastervolt Mac Plus 12/48-15 for flexible, efficiently controlled DC-DC charging in advanced 36V and 48V battery systems.
SEO Meta Description: Mastervolt Mac Plus 12/48-15 bi-directional DC-DC charger delivers flexible 36V or 48V battery charging from a 12V system.
|
| Truck Freight: No |
| Oversized: No |
| Owners Manual Url: https://productimageserver.com/literature/ownersManual/102913OM.pdf |
