Mastervolt Chargemaster Plus 24/20-3
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4 units available
Regular price
€504,35 EUR
IVA inclusa
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MPN
: 44320205
Mastervolt ChargeMaster Plus 24/20-3 – Integrated 24V Charging Solution
The Mastervolt ChargeMaster Plus 24/20-3 is a professional 24V battery charger designed for marine and mobile applications. This all-in-one solution combines multiple functions into one compact unit, reducing system complexity and eliminating the need for additional chargers.
“Battery’s Best Friend” Technology & 3-Step+ Charging
Featuring Mastervolt’s intelligent architecture, the charger supports Gel, AGM, flooded and Lithium-ion batteries using the advanced IUoUo / 3-step+ charging method. The integrated pre-float function prevents overcharging of smaller batteries, allowing safe charging of multiple battery banks with different capacities.
A dedicated Lithium-ion charging profile is included, along with the flexibility to define a custom charging curve. Automatic temperature and DC voltage compensation ensure optimal performance in all conditions.
Worldwide Compatibility
With a wide AC input range of 80–275V (120/240V nominal, 50/60 Hz), the ChargeMaster Plus operates reliably worldwide. It is designed to withstand voltage fluctuations and high ambient temperatures, making it ideal for demanding marine and mobile environments.
Advanced Communication & System Integration
Through MasterBus, CZone and NMEA communication interfaces, the charger integrates seamlessly into advanced onboard energy systems. It provides real-time monitoring of:
- AC power presence and quality
- Charging performance
- Battery voltage and temperature
Compatible with MasterShunt and system displays for professional energy management.
Reliable Performance for Marine & Mobile Use
A temperature-controlled variable-speed fan ensures low noise operation. Galvanic isolation, comprehensive protection features and multiple international certifications make it suitable for boats, yachts, RVs and 24V onboard systems.
Key Features
- 24V battery charger with 20A total output
- Up to 3 battery outputs
- Pre-float overcharge protection
- Automatic current distribution
- Optimized for Lithium-ion batteries
- Current Control via MasterBus or CZone
- Global AC voltage compatibility
Technical Specifications
| Nominal Output Voltage | 24 V |
| Max Output Current (Primary) | 20 A |
| Total Charging Current | 20 A at 28.5 V |
| Battery Outputs | 3 (max.) |
| Battery Capacity Range | 80–200 Ah |
| Input Voltage | 120/240 V (80–275 V) 50/60 Hz |
| Galvanic Isolation | Yes |
| Display | LED indicator |
| Dimensions (HxWxD) | 291 x 210 x 105 mm |
| Weight | 2.5 kg |
| Charging Curve | IUoUo / 3-step+ (Gel/AGM/Flooded/Li-ion + user defined) |
| Temperature Compensation | -60 mV/°C (sensor included) |
| Self Consumption (DC side) | < 2 mA |
| Power Factor | > 0.98 |
| Ambient Temperature | -25 °C to 70 °C |
| Protection Rating | IP23 |
| Certifications | CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA |
The Mastervolt ChargeMaster Plus 24/20-3 delivers professional-grade 24V charging technology for reliable onboard energy management — efficient, safe and fully system-integrated.
