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Mastervolt

Mastervolt Mac Plus 12/48-15

Mastervolt Mac Plus 12/48-15

SKU:102913

Regular price $655.99
Regular price Sale price $655.99
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  • Genuine brand-name parts
  • Ships from US warehouse
  • 30-day returns

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

Brand Mastervolt
Manufacturer part number 81203205
UPC / GTIN 816882023446
Weight 5.60 lb
Category Electronics & Audio
Condition New — genuine brand-name product
Genuine brand-name product, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Questions before you order? Send us the manufacturer part number above and we’ll confirm. 30-day returns on unused items.

Shipping & delivery

Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.

Returns & warranty

Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.

Fitment & part numbers

Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.

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