MASTERVOLT ChargeMaster Plus
All-in-one solution for faster, safer charging
The ChargeMaster Plus is the next generation of battery chargers, integrating multiple functions into a single device. Replacing auxiliary chargers, the ChargeMaster Plus reduces system complexity and costs. Designed for versatility, it charges virtually any combination of two batteries quickly and safely, and works anywhere in the world.
Battery's Best Friend
Thanks to the new Battery's Best Friend architecture, the ChargeMaster Plus is capable of charging batteries of various chemistries, sizes, and voltages. All batteries are charged with the fast and safe 3-stage+ charging method. Other exclusive features include:
- Recovery mode: allows automatic recovery of even deeply discharged batteries.
- Multivoltage: allows charging 12V starter batteries in a 24V system, without additional components (for 24V models only).
- Priority Charge: Allows redirecting available power to the lowest charged battery for a faster charging process.
- Smart Input: Allows charging of all three batteries from a single alternator for uninterrupted charging anywhere.
Global load
The ChargeMaster Plus supports worldwide AC voltages and frequencies. Resistant to large voltage fluctuations and high temperatures, it offers uninterrupted operation in demanding environments. For marine and mobile markets, the ChargeMaster Plus is CE, ABYC, UL, SAE, CEC/DOE, and RCM/C-Tick certified.
System Simplicity
Nowadays, equipment needs to be intuitive. The ChargeMaster Plus displays the charging status of its outputs in an understandable manner. Robust and ergonomic connections save installation time. An integrated VSR (Voltage Sensing Relay) eliminates the need for additional components and ensures alternator energy is channeled to the batteries.
Powerful communications thanks to integration with CZone
In modern applications, all electrical components work together. The CAN protocol-based MasterBus allows the ChargeMaster Plus to communicate with various displays, shunts, and power systems, including communication standards like CZone®, NMEA 2000, and CANopen (via additional interfaces).
Models with the CZone add-on are compatible not only with MasterBus but also with CZone communication systems and NMEA 2000, without the need for additional interfaces. The ChargeMasters Plus series can be configured with MasterBus but also supports a CZone configuration file like any other CZone device. Other communication standards such as ModBus, CANopen, LinBus, etc. are supported through additional interfaces.
This wide range of communication interfaces makes ChargeMaster Plus ideal for system integration. Furthermore, ChargeMaster Plus can function as a power supply for sensitive communication equipment, or during the construction phase of a vessel.
Features
- Automatic Battery Charger.
- Multi-charger with two outputs, one input/output, current limiter, and VSR (voltage sensing relay).
- Charges Lithium-ion, Gel, and AGM batteries. 24V models also charge large or small battery banks with a single battery charger.
- Load multiple batteries on startup.
- Enhanced specifications: It offers 20 % more power at 14.4 V and 80 % more load capacity at 60 °C.
- Safe charging: quickly recognizes the charging status, allowing for extended battery life.
- Very wide operating range of 80-275 VAC, 35-70 Hz.
- Compact, easy to connect, and quick to install.
| Communication & Supervision | ||
| Communication Interfaces | MasterBus, CZone, NMEA | |
| General Specifications | ||
| Nominal output voltage | 24 V | |
| Max. output current for primary output | 60 A | |
| Smart In/Output Voltage | 12 or 24 V | |
| Smart Input/Output Current | 5-10 A at 12 V; 5-20 A at 24 V (adjustable) | |
| Smart Input/Output Current | max. 20 A at 24 V | |
| Total charge current | 60 A at 28.8 V | |
| Max AC current (230 V / 120 V) | 10.2 A / 20.4 A | |
| Number of outputs for batteries | 3 (max.) | |
| Battery capacity range | 200-500 Ah | |
| Nominal input voltage | 120/230 V (80-275 V) 50/60 Hz | |
| AC Connection | threaded terminals, suitable for up to 6 mm² | |
| Supply power to the system without a battery | Yes | |
| Galvanic isolation | Yes | |
| Screen/reading | LED screen | |
| Dimensions, alxanxpr | 384 x 250 x 127 mm 15.1 x 9.8 x 5.0 inches |
|
| Weight | 5.9 kg 13.0 pounds |
|
| Certifications | CE, ABYC, UL1236, SAE J1171, ISO 8846, CEC/DOE, RCM/C-Tick, RMRS, RRR | |
| Technical specifications | ||
| Charging characteristics | IUoUo, 3-stage automatic charger for Gel/AGM/Lithium-ion/Traction/Spiral batteries | |
| Thermal compensation | -60 mV/°C / -76 mV/°F; temperature sensor included | |
| DC voltage compensation | through automatic offsetting or MasterShunt | |
| DC Power Consumption | < 2 mA (MasterBus off) | |
| Current control function | Yes, through MasterBus or CZone | |
| Power Factor Control | 0.98 | |
| Ambient temperature range | -25 °C to 80 °C, reduction 40 |
|
| Refrigeration | variable fan | |
| Degree of protection | IP23, vertical mounting | |
| Protections | Over-temperature, overload, short circuit, high battery, low battery, anti-ignition protection | |
| Compatible with MasterBus | Yes | |
| Charging Status Interface (alarm contact) | Yes, in combination with Multifunction Contact Output (Article No. 77030500) | |







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