ChargeMaster Charger - 12V/25A - 3 Outputs

In stock

Designed for global charging, supports all battery types

Easy integration into MasterBus network for versatile monitoring

Clear display interface with comprehensive charging information

Battery capacity, Ah50 - 250 BrandMastervolt Shipping fromCroatia
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Battery capacity, Ah
50 - 250
Charge characteristic
IUoUo, automatic 3-step+ for Gel/AGM/wet/Lithium Ion
Charge voltage ‘absorption’,V (DC)
Charge voltage ‘float’,V (DC)
Charging Current, A
Charging outputs
Device type
Dimensions, mm
Frequency, Hz
50 - 60Hz
Humidity (non condensing)
max 95 %
Input voltage, V (AC)
120 - 230
Integrated fan
Over temperature, over load, short circuit, high/low battery voltage
Protection category, IP
Weight, kg
Operating temperature
-25 °C to +60 °C
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The ChargeMaster series from Mastervolt ensures optimal charging performance for your batteries, offering the flexibility to plug in and charge anywhere in the world. Featuring Mastervolt's innovative 3-step+ charging process, this series guarantees fast and thorough charging, enhancing battery performance and longevity.

Effortless Integration

All ChargeMaster units seamlessly connect to a MasterBus network with a single cable and connection (excluding ChargeMaster 12/10, ChargeMaster 12/15-2, and ChargeMaster 24/6). Whether you prefer central, local, or remote monitoring, configuration, and control, the ChargeMaster series provides versatile options to suit your preferences.

Clear Display Interface

The ChargeMaster comes equipped with a well-lit display offering crucial information such as charge current, charge voltage, charge phase, battery content measurement, and/or battery condition percentage in terms of available Ah capacity. The display also indicates MasterBus communication status, with user-friendly system control facilitated by three adjacent buttons.

Versatile Model Options

The ChargeMaster series offers various models tailored to diverse situations and requirements, ensuring you find the ideal battery charger for your needs.

Key Features:

  • Designed for recreational and semi-professional use.
  • Compatible with all battery types, including Lithium Ion batteries.
  • Utilizes 3-Step+ charging technology for rapid and comprehensive charging, even for depleted batteries.
  • Memory function prevents overcharging in unreliable mains conditions.
  • Offers charging capacity for battery banks up to 1000 Ah.
  • Easy and quick installation, suitable for charging multiple battery banks simultaneously.
  • Integrated system functionality (MasterBus) when combined with other Mastervolt products.
  • Auto-ranging capability for charging at any voltage worldwide (90-265 V AC, 50 or 60 Hz).
  • Cos phi 1-regulation maximizes generator capacity usage.
  • Robust metal-to-metal connectors with strain relief prevent corrosion and overheating.

Charging Convenience

The ChargeMaster series provides three equal charge outputs, with smaller models featuring pre-installed cables for a plug & play solution. Larger models offer one full output for service batteries and two 10 A outputs for starter batteries.

DC Power Supply

Even when batteries are not connected, Mastervolt ChargeMaster battery chargers can supply a constant DC output, allowing you to power lights or keep appliances running. Ensure continuous functionality and optimal battery performance with Mastervolt ChargeMaster series.

Additional materials

Datasheet (DataSheet_chargemaster-12-25-3.pdf, 745 Kb) [Download]

User Manual (Manual_ChargeMaster.pdf, 1,071 Kb) [Download]

Configuration Instructions (ChargeMaster-Setup-Instructions.pdf, 417 Kb) [Download]

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