Mastervolt 44310355 ChargeMaster Plus 12/35-3 Battery Charger

Mastervolt 44310355 ChargeMaster Plus 12/35-3 Battery Charger

Regular price $716.98 Sale price$549.00 Save $167.98
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All-in-one solution for faster and safer charging
The ChargeMaster Plus family is a complete range of battery chargers that provide both efficient and reliable performance in all conditions. This new generation of battery chargers offers multiple functions in one compact device. The ChargeMaster Plus reduces costs and simplifying the system and eliminating the need for additional battery chargers.

The 'Battery's Best Friend' architecture enables the ChargeMaster Plus to charge any battery chemistry using the fast and safe 3-step+ charging method. Different battery sizes can be combined, as the pre-float functionality eliminates the risk of overcharging smaller batteries. The charging profile of the Lithium Ion battery is included, as well as flexibility for a customised, user-defined profile.

Global charging
The ChargeMaster Plus charges almost any combination of two or three batteries quickly and safely and can handle all possible mains voltages and frequencies worldwide.

Plug-and-play battery charger
The new ChargeMaster Plus models can achieve full functionality within a complete MasterBus or CZone system, or can also be used as a convenient plug-and-play standalone battery charger

Optimal performance
The new ChargeMaster Plus can communicate directly with Mastervolt Lithium Ion batteries, MasterShunt or system display for real-time adjustments and optimal performance.

The battery charger can withstand high temperatures and significant voltage fluctuations. That makes this battery charger very suitable for the most harsh, maritime, or mobile environments. In addition, the ChargeMaster Plus has CE, ABYC, UL, cULus, SAE, CEC/DOE, ISO and ACMA certifications.

Key features

  • Improved cooling technology results in very low noise levels across the entire power range.
  • Use as a standalone charger or as part of a complete system.
  • Automatic power distribution, maximum charging current possible on each output.
  • All 3 outputs can provide maximum current*
  • Pre-float eliminates the risk of overcharging.
  • Automatic current distribution - charging current distribution based on the condition of the battery.
  • Compatible with worldwide frequencies and mains voltages.
  • Smaller and lighter than the previous model.

*The total charging current shall not exceed the maximum of the model.

Mastervolt ChargeMaster Plus 12/35-3 Battery Charger Manual:

download pdf


Communication & monitoring
Communication interfaces MasterBus, CZone, NMEA2000


General specifications
Nominal output voltage 12 V
Max. output current primary output 35 A
Total charge current 35 A at 14,25 V
Max. AC current (230 V / 120 V) 2.5 A / 5.0 A
Number of battery outlets 3 (max.)
Battery bank size 140-350 Ah
Nominal input voltage 120/230 V (80-275 V) 50/60 Hz
Power supply mode yes
Galvanic isolation yes
Display/read-out LED display
Dimensions, hxwxd 291 x 210 x 105 mm
11.5 x 8.3 x 4.1 inch
Weight 2,5 kg
5.5 lb
Compliance CE, CEC, DOE, ABYC, UL1236, cULus, SAE J1171, ISO 8846, ACMA


Technical specifications
Charge characteristic IUoUo, automatic / 3-step+ for Gel/AGM/flooded/Lithium Ion + user defined option
Temperature compensation --30 mV/°C / -38 mV/°F; incl. temperature sensor
DC voltage compensation Yes, via automatic compensation or MasterShunt
Power consumption (DC side) < 2 mA (MasterBus off)
Current Control function yes, through MasterBus or CZone
Power factor control > 0,98
Temperature range (ambient temp.) -25 °C to 70°C, derating > 40 °C, 80% power at 60°C °C
-13 °F to 32 °F
Cooling vario fan
Protection degree IP23, vertical mounting
Protections over-temperature, overload, short circuit, high/low battery voltage, ignition protection
Charger Status Interface (alarm contact) yes, using a Multipurpose Contact Output (code 77030500)

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