Mastervolt ChargeMaster 12/25-3 Battery Charger

Plug in and charge anywhere in the world

Make the most of your batteries with the Mastervolt ChargeMaster 12/25-3 Battery Charger, plugging in and charging anywhere in the world. Mastervolt’s ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. Thanks to Mastervolt’s innovative 3-step+ charging process, batteries also perform better and last longer.

All ChargeMasters can be easily connected to a MasterBus network with only one cable and one connection (with the exception of the ChargeMaster 12/10, ChargeMaster 12/15-2 and ChargeMaster 24/6). What’s more, you have the option for central, local or remote monitoring, configuration and control of your system.

Clear Display
A clearly lit display on the ChargeMaster provides all essential information: charge current, charge voltage, charge phase and battery content measurement and/or battery condition measurement as a percentage of available Ah capacity. The display also provides an indication of MasterBus communication. Three buttons adjacent to the read-out panel allow for easy operating of the entire system.

Charging your batteries with every voltage
The Mastervolt ChargeMaster supplies a maximum capacity wherever you are via auto-ranging. Auto-ranging ensures perfect fully automatic operation anywhere in the world, regardless of the available mains voltage (90-265 V AC, 50 or 60 Hz). The 3-step+ charging technology guarantees fast and complete charging, while the cos phi 1-regulation gets the most out of limited generator capacity.

Charging multiple battery banks
The ChargeMaster series has three equal charge outputs. Those of the smaller ChargeMaster models are pre-installed with two metres of cable for a plug & play solution, while the heavier models have one full output (for example for your service battery) and two outputs of 10 A, ideal for your starter batteries.

Mastervolt ChargeMaster 12/25-3 Battery Charger Features:

• For recreational and semi-professional use
• Suitable for any type of battery, including Lithium Ion batteries
• 3-Step+ charging technology for fast and complete charging, also charges depleted batteries
• Memory function prevents overcharging in case of unreliable mains
• Safe and complete charging due to standard safety features
• Charging capacity up to 1000 Ah battery banks
• Easy to connect and quick to install
• Can charge multiple battery banks simultaneously
• Built-in system functionality (MasterBus) in combination with other Mastervolt products
• Clear control panel (with the exception of the ChargeMaster 12/10, ChargeMaster 12/15-2 and ChargeMaster 24/6)
• Supplies your system without battery

Mastervolt ChargeMaster 12/25-3 Battery Charger Specifications:

• Nominal output voltage: 12 V
• Total charge current: 25 A at 13.25 V
• Number of battery outlets: 3
• Charge current second output: 25 A
• Charge current third output: 25 A
• Battery bank size: 50-250 Ah
• Nominal input voltage: 120/230 V (90-265 V), 50/60 Hz
• AC connection: 2 mtr AC cable
• Power supply mode: yes
• Galvanic isolation: yes
• Display/read-out: LED display
• Fastening: 4x screw
• Dimensions, hxwxd: 234 x 132 x 60 mm (9.2 x 5.2 x 2.4 inch)
• Weight: 1.8 kg (4.0 lb)
• Compliance: CE, ABYC A-31, SAE J1171/ISO 8846 ignition protected, RRR, RMRS
• Optional: Quick Connect (OEM) version with WAGO 770-113 connector and 25 cm cable, product code 44010252
• Charge characteristic: IUoUo, automatic 3-step+ for Gel/AGM/wet/Lithium Ion
• Charge voltage Bulk: 14.4 V
• Charge voltage Absorption: 14.25 V
• Absorption time: 4 hours
• Charge voltage Float (wet batteries): 13.25 V
• Charge voltage Float (Gel/AGM batteries): 13.8 V
• Temperature compensation: yes
• DC voltage compensation: automatic
• Power consumption (DC side):
• Full load consumption (230 V AC): 450 W
• Current Control function: no
• Power factor control: ≥ 0.98
• Temperature range (ambient temp.): -25 °C to 60 °C, derating 40 °C (-13 °F to 140 °F)
• Cooling: vario fan
• Protection degree: IP23
• Protections: over temperature, over load, short circuit, high/low battery voltage
• MasterBus compatible: yes