Mastervolt Mac Plus 24/24-30 + CZone [81205405]

Name: Mastervolt Mac Plus 24/24-30 + CZone [81205405]
Brand: Mastervolt
SKU: RH-102662
Price: 590.99 USD
Availability: InStock

$590.99 USD

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Mac Plus 24/24-30 + CZone

Boost the 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 DC-DC charger solves this problem, providing a quick, safe, and consistent charge to the service battery. And, by knowing when the engine is running and providing charge, users can be sure that the Mac Plus will never drain a starter battery.

Proven Mastervolt Quality

Users get peace of mind knowing that they have the best on board. Using the proven Mastervolt 3-step+ charge algorithm, the Mac Plus delivers a quick and easy charge, even for completely flat batteries.

A robust design holds up in even the harshest conditions, with battery temperature-optimized charging and a 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 for 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. 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 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:

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 are 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 setup via DIP switches

Specifications:

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 Stabilization: 2 % at extremes of temperatures, load, and input
Output Voltage Ripple (peak-peak): Max. 1 %
Max. Output Power: 850 W
Nominal Output Power: 810 W
Max. Output Current: 30 A
Output Charge Current (3-step mode): 30 A
Nominal Input Voltage: 24 V
Input Voltage Range: 19-30 V
Max. Input Current: 30 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, H x W x D: 255 x 165 x 66 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

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 mm², (positive input, positive output, joint negative connection) 8-pole screw connection for cable diameters of 0.75-1.5 mm² (remote on/off, temperature sensor, voltage measurement
Temperature Range (ambient temp.): -25 degrees C to 60 degrees C; derating > 40
Cooling: Natural cooling
Protections: Overload, over temperature, DC short circuit, reversed polarity (fuse)
MasterBus Compatible: Yes

Specifications:

Charger Input - Voltage: 24v
Charger Output - Amps: 30a
Charger Output Voltage: 20-30v
Box Dimensions: 4"H x 9"W x 15"L WT: 5.65 lbs
UPC: 816882023521

Owner's Manual (pdf)

Shipping Policy

Shipping Policy

Effective Date: July 14, 2026

At Roam & Harbor LLC ("Roam & Harbor," "we," "our," or "us"), we are committed to getting your order to you as quickly and efficiently as possible so you can spend more time enjoying your next adventure. Whether you're shopping for marine, RV, camping, or outdoor gear, we're here to make your experience as smooth as possible.

Order Processing

Orders are processed the same business day when placed before our daily order cutoff time. Orders placed after the cutoff, on weekends, or on recognized holidays will be processed on the next business day.

Once your order has been processed, you will receive a shipping confirmation email with tracking information.

Please note that processing times may be extended during holidays, promotional events, or periods of unusually high order volume.

Shipping Methods

We offer the following shipping options:

Standard Shipping
Expedited Shipping (additional fee)
Overnight Shipping (additional fee)

Available shipping methods and estimated delivery times will be displayed during checkout based on your shipping destination.

Shipping Rates

Shipping rates are calculated at checkout based on your order, destination, package dimensions, and the selected shipping method.

From time to time, Roam & Harbor may offer promotional shipping offers, including free shipping on qualifying orders. Any applicable promotions will be clearly communicated on our website and during checkout.

Shipping Carriers

To provide the best delivery experience, we ship through a variety of trusted carriers, including national and regional delivery partners. Carrier selection is determined based on your location, package size, and the shipping service selected at checkout.

International Shipping

Roam & Harbor proudly ships to customers around the world.

Please note that international customers are responsible for all applicable customs duties, import taxes, VAT, brokerage fees, and other charges imposed by their destination country. These fees are not included in your purchase price or shipping charges and must be paid by the recipient upon delivery, where applicable.

International delivery times may vary due to customs processing and local postal services.

Order Tracking

Once your order has shipped, you will receive an email containing your tracking number. Tracking information may take up to 24 hours to become active after your shipment has been processed by the carrier.

Shipping Delays

While we work hard to meet all estimated delivery times, shipping delays may occasionally occur due to weather conditions, carrier disruptions, customs inspections, or other circumstances beyond our control.

Roam & Harbor is not responsible for delays caused by shipping carriers or events outside of our reasonable control. We appreciate your patience and understanding should these situations arise.

Lost, Damaged, or Missing Packages

If your package appears to be lost, damaged during transit, or has not arrived within the expected delivery timeframe, please contact our Customer Support team as soon as possible.

Email: admin@roamandharbor.com

We will work with the shipping carrier to investigate the issue and assist you in resolving it as quickly as possible.

Please note that shipping damage and manufacturer defects are handled differently. If you receive a product that is defective due to a manufacturing issue rather than shipping damage, please contact our Customer Support team immediately. We will review the issue and work with you to determine the appropriate resolution in accordance with our Returns Policy and any applicable manufacturer warranty.

Incorrect Shipping Address

Customers are responsible for providing an accurate shipping address at checkout.

If you notice an error after placing your order, please contact us immediately. While we will do our best to update your order before it ships, we cannot guarantee changes once an order has entered processing or has been handed over to the carrier.

Roam & Harbor is not responsible for orders delivered to an incorrect address provided by the customer.

Questions?

If you have any questions regarding shipping, delivery, or your order status, we're happy to help.

Roam & Harbor LLC

Email: admin@roamandharbor.com

Return & Refund Policy

Returns & Refund Policy

Effective Date: July 14, 2026

At Roam & Harbor LLC ("Roam & Harbor," "we," "our," or "us"), we want you to shop with confidence. If you're not completely satisfied with your purchase, we're here to help. Please review the following policy to understand our return, refund, and exchange process.

Return Eligibility

Most items may be returned within 30 days of the delivery date.

To qualify for a return, items must:

Be unused, uninstalled, and in their original condition.
Include all original packaging, manuals, accessories, tags, and components.
Be free from signs of wear, misuse, modification, or damage after delivery.

Roam & Harbor reserves the right to refuse returns that do not meet these eligibility requirements.

Non-Returnable Items

The following items are not eligible for return:

Clearance or final sale items.
Gift cards.
Hazardous materials or products classified as hazardous for shipping.
Opened consumable products.
Any item identified as non-returnable at the time of purchase.

Return Authorization

Because Roam & Harbor works with multiple fulfillment partners and manufacturers, all returns require prior authorization.

Return instructions and the appropriate return location vary depending on the product purchased. Please contact our Customer Support team before sending any item back.

Returns sent without prior authorization or to an unauthorized address may be refused, returned to the sender, or experience delays in processing.

Return Shipping

For standard returns, customers are responsible for return shipping costs.

We recommend using a trackable shipping service and purchasing shipping insurance, as Roam & Harbor is not responsible for items lost or damaged while being returned.

Damaged, Defective, or Incorrect Items

If your order arrives:

Damaged during transit,
Defective due to a manufacturing issue, or
Different from the item you ordered,

please contact our Customer Support team as soon as possible.

To help us resolve your claim quickly, we may request photographs of the product, packaging, shipping label, or other relevant information.

Once your claim has been reviewed and approved, Roam & Harbor will provide a prepaid return shipping label when a return is required.

Depending on inventory availability and the nature of the issue, we may provide one of the following resolutions:

A replacement product (subject to availability).
A full refund to your original payment method.
Another mutually agreed-upon resolution when appropriate.

Exchanges

Exchanges are available only for products confirmed to be defective.

If a replacement product is unavailable, a full refund will be issued to your original payment method.

Inspection & Refunds

Returned merchandise may be inspected by Roam & Harbor or one of our authorized fulfillment or manufacturer partners before a refund or replacement is approved.

Once your return has been received and approved, refunds will be issued to your original payment method within 14 business days.

Please note that your financial institution may require additional time to post the refund to your account.

Original shipping charges are non-refundable unless the return results from our error or an approved defective, damaged, or incorrectly shipped item.

Refused Deliveries & Incorrect Addresses

Customers are responsible for providing an accurate shipping address at checkout.

Orders returned because of an incorrect address, refused delivery, or failure to accept delivery may be subject to the original shipping charges and any return shipping fees incurred by Roam & Harbor or our fulfillment partners.

Manufacturer Warranties

Many products sold by Roam & Harbor are covered by manufacturer warranties.

Manufacturer warranties are separate from this Returns & Refund Policy and remain subject to the individual manufacturer's terms and conditions.

If your issue occurs outside our 30-day return period but falls within a manufacturer's warranty, our Customer Support team will gladly assist you in identifying the appropriate warranty process whenever possible.

How to Start a Return

To begin a return request, please contact our Customer Support team and provide: