Mastervolt ChargeMaster 25 Amp Battery Charger - 3 Bank, 12V

Designed for durable, reliable charging in demanding environments, the ChargeMaster 25 A Battery Charger powers three independent 12V battery banks from a compact, high-efficiency module. It is well suited for recreational vessels, professional installations, and off-grid power systems where continuous, silent operation and dependable performance are essential.

Performance specifications

• Charger Input Voltage: 120/230V
• Charger Output: 25A at 12V
• Charging Banks: 3 (simultaneous charging of multiple battery banks)
• Weight: 4.9 lbs; Box Dimensions: 5"H x 8"W x 11"L
• Networking: Built-in MasterBus with a single cable for integration with other Mastervolt products
• Monitoring/Control: Central, local, or remote monitoring and configuration options

Key features

• 3-Step+ charging technology for fast, complete battery restoration
• Memory function prevents overcharging when power is unstable
• Clear control panel for quick status checks and diagnostics
• Easy to install and connect within existing electrical systems
• Built-in MasterBus functionality enables centralized control with other Mastervolt equipment

Safety and compliance

California Prop 65 warning: This product can expose you to di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, see P65Warnings.ca.gov.

Installation and maintenance

The ChargeMaster supports 120/230V input and provides 12V outputs across three banks. It is designed for straightforward installation and MasterBus integration using a single connection. For ongoing performance, ensure secure wiring and periodic visual inspections of connections; refer to the Owner's Manual (pdf) and Brochure (pdf) for detailed maintenance guidance and safety practices.

Downloads

Owner's Manual (pdf) • Brochure (pdf)

ChargeMaster 25 Amp Battery Charger - 3 Bank, 12V

Power you can rely on.

Always on course with Mastervolt...

Mastervolt ensures you an electrical system with no weak links and a dependable and silent power supply. Whether for recreational or professional purposes, with Mastervolt you always have power you can rely on... The power to be independent.

ChargeMaster Battery Chargers

Make the most of your batteries with the ChargeMaster, plugging in and charging anywhere in the world. Mastervolt's ChargeMaster guarantees fast and complete charging of your batteries no matter where you are. The ChargeMaster can charge multiple battery banks simultaneously thanks to its combined functionality. Moreover, all ChargeMasters can be easily connected to a MasterBus network with only one cable and one connection. You also have the option of central, local or remote monitoring, configuration and control of your system. The ChargeMaster is available in various models to guarantee you the ideal battery charger for any situation and demand.

Features:

• 3-Step+ charging technology for fast and complete charging
  
• Safe and complete charging due to standard safety features
  
• Memory function prevents overcharging in case of an unstable power supply
  
• Clear control panel
  
• Easy to install
  
• Built-in system functionality (MasterBus) in combination with other Mastervolt products

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Charger Input - Voltage: 120/230v
• Portable: No
• Charging Banks: 3
• Charger Output - Amps: 25a
• Charger Output Voltage: 12v
• Box Dimensions: 5"H x 8"W x 11"L WT: 4.9 lbs
• UPC: 852968002318