Mastervolt ChargeMaster Battery Charger – 3-step Plus charging technology with MasterBus
Fast, complete, and smart: The Mastervolt ChargeMaster charges your batteries with proven 3-stage+ charging technology – reliably, gently, and suitable for all battery types, including lithium-ion. Thanks to MasterBus integration, you can monitor and control the device centrally, locally, or remotely, and thanks to the integrated power supply function, your lights and refrigerator will keep running as long as you are connected to shore power.
Tip: When selecting the right model, pay attention to the nominal voltage of your onboard system (12 V or 24 V) and the total capacity of your battery bank – Mastervolt recommends a battery capacity of 50–250 Ah for the 12/25-3 or 21–120 Ah for the 24/12-3.
Couldn't load pickup availability
- 3-step IUoUo charge characteristic – fast and complete charging, even for deeply discharged batteries
- Suitable for all battery types: wet, Gel, AGM and Lithium Ion
- 3 equal charge outputs – charges multiple battery banks simultaneously
- MasterBus compatible – central monitoring, configuration and remote access
- Integrated power supply function – constant DC output for onboard consumers at the berth
- Auto-ranging (90-265 V AC, 50/60 Hz) – works worldwide with any mains voltage
| Charging characteristic | IUoUo, automatic 3-step + (Gel / AGM / Wet / Lithium-ion) |
|---|---|
| Number of charge outputs | 3 |
| Degree of protection | IP23 |
| Input voltage (auto-ranging) | 90–265 V AC, 50/60 Hz |
| MasterBus compatible | Yes |
| Cooling | Vario fan (speed controlled) |
| Protection functions | Overtemperature, overload, short circuit, high/low battery voltage |
| Certifications (12/25-3) | CE, ABYC A-31, SAE J1171 / ISO 8846 (Ignition Protected), RRR |
| Certifications (24/12-3) | CE, ABYC A-31, SAE J1171 / ISO 8846 (Ignition Protected), RMRS, RRR |
| Dimensions H × W × D | 234 × 132 × 60 mm |
| Weight | 1.8 kg |
| Temperature range | −25 °C to 60 °C (derating below 0 °C and above 40 °C) |
| — Type 12/25-3 — | |
| Board voltage | 12 V |
| Total charge current (output 1) | 25 A |
| Charge current output 2 & 3 | 25 A each |
| Charging voltage Bulk | 14.4 V |
| Charging voltage Absorption | 14.25 V |
| Absorption time (wet cell) | 4 hours |
| Charging voltage Float (wet) | 13.25 V |
| Charging voltage Float (Gel/AGM) | 13.8 V |
| Battery capacity (recommended) | 50–250 Ah |
| Consumption at full load (230 V) | 450 W |
| — Type 24/12-3 — | |
| Board voltage | 24 V |
| Total charge current (output 1) | 12 A at 26.5 V |
| Charge current output 2 & 3 | 12 A each |
| Charging voltage Bulk | 28.8 V |
| Charging voltage Absorption | 28.5 V |
| Absorption time (wet cell) | 4 hours |
| Charging voltage Float (wet) | 26.5 V |
| Charging voltage Float (Gel/AGM) | 27.6 V |
| Battery capacity (recommended) | 21–120 Ah |
| Consumption at full load (230 V) | 435 W |
Mastervolt
Gewicht (ca.): 0.2 kg
Herstellerinformationen gemäß GPSR:
NAVICO GROUP EMA BVSnijdersbergweg 93
1105 AN Amsterdam
Mail: info.emea@oneASG.com
