Mastervolt ChargeMaster 12/25-3 Battery Charger - 44010250

366,53 VAT inc.


Rated output voltage: 12 V
Total load current: 25 A at 13.25 V
Number of outlets for batteries: 3
Auxiliary load current output: 25 A
Third load current output: 25 A

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Product information

Mastervolt ChargeMaster 12/25-3 Battery Charger - 44010250

Get the most out of your batteries with the Mastervolt ChargeMaster 12/25-3 battery charger, which you can plug in to charge anywhere in the world. The Mastervolt ChargeMaster ensures fast and complete charging of your batteries regardless of your location. Thanks to Mastervolt's innovative 3-stage charging process, you will also get more performance and longer life from your batteries.

All ChargeMasters can be easily connected to a MasterBus network via a single connection and a single cable (with the exception of ChargeMaster 12/10, ChargeMaster 12/15-2 and ChargeMaster 24/6). In addition, you have the option of central, local or remote monitoring, configuration and control of your system.

Clear display screen

The Mastervolt ChargeMaster 12/25-3 battery charger is equipped with a clear display screen where all basic information is presented: charging current, charging voltage, charging phase and measurement of the battery content and/or measurement of the battery status as a percentage of the available Ah capacity. The display also informs about MasterBus communication. Three buttons next to the readout panel allow easy operation of the entire system.

The ChargeMaster is available in several models to obtain the ideal battery charger for any situation and need.

Mastervolt ChargeMaster 12/25-3 battery charger features

  • Automatic Battery Charger.
  • For recreational and semi-professional use.
  • Suitable for any type of batteries; including lithium-ion batteries.
  • 3-stage+ charging technology for fast and complete charging; also charges fully depleted batteries.
  • Memory function that prevents overloading in case of unstable power supply.
  • Safe and complete loads thanks to standard safety features.
  • Charging capacity of up to 1000 Ah battery banks.
  • Easy to connect and quick to install.
  • It can simultaneously charge several battery banks.
  • Integrated system functionality (MasterBus) in combination with other products Mastervolt.
  • Clear display control panel (except for ChargeMaster 12/10, ChargeMaster 12/15-2 and ChargeMaster 24/6).
  • Supplies power to the system without battery.

Charge your batteries at any voltage

The Mastervolt ChargeMaster 12/25-3 battery charger delivers maximum capacity anywhere thanks to its automatic regulation. This function guarantees perfect operation anywhere in the world fully automatically, regardless of the available mains supply (90-265 VAC, 50 or 60 Hz). The 3-stage+ charging technology gives you fast and full loads, while the fi 1 cosine regulation gets more out of the generator's limited capacity.

Robust connections

Metal contact fittings provide a tight connection and prevent corrosion or overheating of mating surfaces.

Charging of multiple battery banks

The ChargeMaster series features three similar charging outputs. The smaller ChargeMaster models have two meters of cable pre-installed for a 'plug & play' solution, while the larger models feature a full output (e.g. for the service battery) and two 10 A outputs, ideal for starter batteries.

DC power supply

Even if the batteries are not connected, Mastervolt's ChargeMaster battery chargers can provide a constant DC output, allowing you to turn on the lights or keep the refrigerator running.

Mastervolt ChargeMaster 12/25-3 battery charger data sheet - 44010250

View Mastervolt ChargeMaster 12/25-3 battery charger data sheet - 44010250

Additional information

Weight2 kg
Dimensions25 × 15 × 10 cm

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