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Mac Plus 12/48-15
Boost Your Service Battery
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 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)
Specifications:
- Charger Input - Voltage: 12v
- Charger Output - Amps: 15a
- Charger Output Voltage: 36/48V
- Box Dimensions: 4"H x 9"W x 15"L WT: 5.6 lbs
- UPC: 816882023446
Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)
FAQs
Product & Usage
1. Is your gear authentic and warranty-backed?
Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.
2. Are these products beginner-friendly?
Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.
3. Are these products built for marine conditions?
Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.
Maintenance & Accessories
1. What maintenance does marine electronics require?
Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.
2. Can I buy replacement parts and accessories separately?
Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.
3. Do you provide product manuals or installation guides?
Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.
Warranty & Guarantee
1. Does my purchase include a warranty?
Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).
2. How do I register for warranty coverage?
Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.
3. What does the manufacturer warranty cover?
Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.
4. Can I extend the warranty?
Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.
Purchasing & Support
1. How fast does my order ship?
Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.
2. Do you offer bulk or fleet pricing?
Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.
3. How can I contact support?
Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.
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