Mastervolt develops electrical power systems for marine, mobile, and off-grid applications, with a strong focus on energy conversion, charging, storage, and power management. Its marine range includes battery chargers, inverters, inverter/chargers, lithium batteries, DC-DC converters, isolation products, monitoring equipment, and related system components.
Mastervolt products are used to build integrated onboard electrical systems for yachts and boats, covering shore power, battery charging, DC and AC distribution, energy storage, conversion, and system monitoring. The range supports both new installations and upgrades where reliable power management and compatibility between electrical components are important.
At Yacht-Supply24.com, we supply Mastervolt marine equipment and spare parts and can assist with product selection, replacement components, system compatibility, and identification of the correct equipment for an existing installation.
Send us your request if you need help selecting the correct Mastervolt product or replacement part.
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1-2 weeks delivery time The Mastervolt Masterswitch Automatic Power Supply Selection System ensures safe and efficient operation of your vessel's electrical system. With automatic switching between two AC inputs and two outputs, this compact device delivers reliable power transmission up to 25 kW and supports currents from 20 to 125 A. Available in multiple models, the Masterswitch is indispensable for maintaining smooth electrical operations on board. |
$ 635.65
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1-2 weeks delivery time The Mastervolt Mass Systemswitch Automatic Power Supply Selection System is an advanced electronic system designed to seamlessly control onboard electrics. With three AC inputs, up to four outputs, and a user-friendly display panel, it ensures safe and efficient power transmission from 4.5 kW to 16 kW. Supporting currents between 25 A and 63 A, it offers a reliable solution for managing multiple 230 V power sources on any vessel. |
$ 2,345.27
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1-2 weeks delivery time The Mastervolt Mass GI Isolation Transformer is a compact and lightweight solution for safely connecting your vessel to an onshore power supply. With advanced high-frequency electronics, it supports both 120V and 230V AC systems. Features like vibration-free operation, integrated Soft Start, and optional remote control via MasterBus panels make it ideal for marine applications. Available in 3.5 kW and 7.0 kW models. |
$ 1,955.85
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1-2 weeks delivery time The Mastervolt EasyCharge Charger is a versatile, portable battery charger designed for 6V and 12V batteries with capacities from 14 Ah to 120 Ah. With a fully waterproof IP65-rated casing, it is suitable for gel, AGM, and liquid batteries, making it ideal for cars, motorcycles, boats, and more. Compact and user-friendly, it ensures reliable charging during vacations, water sports, and other outdoor activities.
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$ 87.41
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1-2 weeks delivery time The Mastervolt IVO ChargeMaster Charger is a compact and waterproof charging solution designed for 12V and 24V battery systems. With advanced automatic circuits and a 3-step charging process, it supports efficient and reliable charging, even in wet environments. Available in multiple models, it can charge separate batteries simultaneously, making it ideal for various marine and automotive applications. |
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1-2 weeks delivery time The Mastervolt ChargeMaster Charger is a highly reliable charging system designed for vessels of all sizes, capable of charging up to three batteries simultaneously or operating as a DC power supply. Utilizing advanced microprocessor-controlled pulse technology, it ensures precise and efficient charging characteristics. The built-in memory function prevents unnecessary charging cycles after power interruptions. Equipped with an LED-backlit display and three control buttons, it offers user-friendly operation and monitoring.
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$ 541.36
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1-2 weeks delivery time The Mastervolt Mass Battery Chargers are built for the most demanding conditions, delivering exceptional reliability for professional, semi-professional, and recreational use. With robust stainless steel and anodized aluminum construction, these chargers provide up to 180,000 hours of operation under full load. Featuring advanced protection against moisture, condensation, and electromagnetic interference, they are ideal for marine and industrial applications. Available for 24V and 48V battery systems.
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$ 3,623.56
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1-2 weeks delivery time The Mastervolt AC Master Inverter is a reliable solution for converting 12V or 24V DC power into a stable 230V AC supply, ideal for powering sensitive onboard equipment. With its pure sine wave output, it ensures smooth operation of multimedia systems and other electronics. Compact, lightweight, and designed for heavy-duty use, the AC Master series features a waterproof casing and universal outlets for worldwide compatibility.
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$ 597.24
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1-2 weeks delivery time The Mastervolt Mass Sine Inverter provides stable 220V/50Hz AC power from 12V or 24V DC sources, making it perfect for powering household appliances onboard vessels. With advanced features like automatic standby and scan modes, this inverter ensures efficient energy management and seamless operation, even during peak power demands.
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$ 2,965.21
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1-2 weeks delivery time The Mastervolt DC Master DC Converter ensures stable and reliable DC voltage conversion for various applications. Designed for the maritime market, it offers compact, lightweight construction with high durability and easy installation. With options for 12V, 24V, and 48V systems, these converters meet diverse power requirements, including the ability to connect up to 10 units in parallel for higher loads.
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$ 366.73
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1-2 weeks delivery time The Mastervolt DC-DC MAC&MAGIC DC Converter combines innovative technology with modern microprocessors to ensure minimal power loss during voltage conversion. Designed for 24V to 12V or 24V to 24V applications, it improves system efficiency and reduces harmonics. With the ability to connect multiple units for higher current demands, it provides a scalable and reliable solution for electrical systems.
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$ 628.67
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1-2 weeks delivery time The Mastervolt Mass Combi HF Combination Charger is a multifunctional solution for charging, converting, and power supply needs. Designed for vessels up to 16 meters, it offers silent operation, compact design, and support for parallel connections. With models for 12V, 24V, and 48V systems, it ensures efficient power management in marine environments.
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1-2 weeks delivery time The Mastervolt Mass Combi Ultra is an advanced combination inverter and charger designed for mobile and marine environments. With power ranges from 3000W to 7000W, this compact, silent device integrates support for solar panels, generators, and parallel operation, offering unmatched versatility for modern power management.
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$ 5,348.90
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1-2 weeks delivery time The Mastervolt Mass Combi Pro is a powerful combination inverter and charger designed for professional marine and mobile applications. Supporting up to 12 kW generator input and 7 kW shore power, it offers parallel and three-phase operation to handle large consumers up to 35 kW. Ideal for demanding environments, it provides exceptional versatility and reliability. |
$ 4,790.08
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1-2 weeks delivery time The Mastervolt Dynamo's DC Generator provides efficient and reliable charging for starter batteries in 12V and 24V configurations. With charging currents from 75A to 150A, it supports multiple battery systems when used with the Alpha generator and Mate battery. Designed for durability and performance, it ensures effective charging even at low engine speeds. |
$ 2,226.53
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1-2 weeks delivery time The Mastervolt BI/BM Battery Divider is a reliable diode-based solution for managing multiple battery banks. With models supporting 2 or 3 inputs and currents from 70A to 250A, it ensures optimal performance and protects your electrical system. Designed for seamless integration with chargers and alternators, it offers efficient and worry-free power distribution.
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$ 128.52
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1-2 weeks delivery time The Mastervolt Battery Watch is an essential component for any onboard battery system, ensuring optimal operation and long service life. Acting as a main battery switch, it is built with durable materials to withstand wet environments and salt vapors. With a maximum load of 150A and input voltage support from 8 to 32 V DC, it offers reliable performance in demanding marine conditions. |
$ 368.99
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1-2 weeks delivery time The Mastervolt 12V AGM Battery offers a versatile solution combining starter and service functions in a single unit. Designed for marine and mobile applications, these semi-traction batteries deliver high current pulses for starting engines and reliable power for thrusters, winches, and other onboard equipment. Available in capacities from 55Ah to 270Ah.
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$ 257.29
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What is Mastervolt known for in marine electrical systems?
Mastervolt is known for integrated electrical power solutions for boats and yachts, including charging, inversion, energy storage, voltage conversion, monitoring, and power distribution. Its products are designed to work together as part of complete onboard electrical systems, from shore power and battery charging to AC and DC power management.
Why are Mastervolt products suitable for integrated onboard power systems?
Mastervolt develops components that can be combined within the same electrical installation, helping simplify system design, monitoring, and power management. Battery chargers, inverters, inverter/chargers, batteries, DC-DC converters, and monitoring equipment can be selected according to the vessel’s voltage, battery capacity, AC loads, charging sources, and operating requirements.
How can I choose the correct Mastervolt charger or inverter for my boat?
Selection depends on factors such as battery voltage and chemistry, total battery capacity, required charging current, AC load, available shore power, and the way the vessel is normally used. For inverters and inverter/chargers, the continuous and peak power requirements of onboard AC equipment should also be considered.
Existing system components and communication interfaces should be checked to ensure compatibility before replacing or adding equipment.
Can Mastervolt equipment be used with different battery technologies?
Mastervolt charging and power-management equipment is available for a range of battery technologies, including conventional lead-acid and lithium-based systems. The correct charging profile, voltage settings, battery monitoring, and system configuration depend on the specific battery type and equipment being used.
For lithium installations, compatibility between the charger, battery management system, monitoring equipment, and other connected components should always be verified.
What is the purpose of DC-DC converters in a Mastervolt marine system?
DC-DC converters are used to convert or stabilize DC voltage between different parts of the onboard electrical system. They can allow 12 V and 24 V equipment to operate within the same vessel, provide a stable supply to sensitive electronics, or support charging between separate battery banks when the installation requires different voltage levels.
How can I identify the correct Mastervolt replacement or upgrade component?
The best starting point is the model name, part number, system voltage, battery type, power rating, and details of the existing installation. For upgrades, it is also important to check compatibility with connected chargers, batteries, inverters, monitoring equipment, and communication networks.
If the original product is discontinued, its technical specifications can be used to identify a suitable current Mastervolt replacement or alternative.