Mastervolt ChargeMaster 12 Amp Battery Charger - 3 Bank, 24V

The ChargeMaster Battery Charger - 12 Amp - 3 Bank - 24V is the ultimate solution for marine enthusiasts looking to maintain optimal battery performance. Designed specifically for the demanding environment of boating, this charger ensures your batteries are always ready for your next adventure.

Reliable Power for Your Marine Adventures

With the ChargeMaster, you can confidently charge your batteries anywhere in the world. Mastervolt’s ChargeMaster guarantees fast and complete charging, whether you're docked at a marina or cruising offshore. Its ability to charge multiple battery banks simultaneously makes it an indispensable tool for any vessel, ensuring all your power needs are met efficiently.

Advanced Charging Technology

The ChargeMaster is equipped with auto-ranging technology, allowing it to adapt to various mains voltages (90-265 V AC, 50 or 60 Hz) effortlessly. This ensures uninterrupted and optimal charging regardless of your location. The innovative 3-step+ charging process not only speeds up charging times but also maximizes battery life by preventing overcharging. Additionally, the cos phi 1 regulation optimizes generator performance, making the most of limited generator capacity.

Durable and Corrosion-Resistant Connections

Marine environments demand robust and reliable connections. The ChargeMaster features metal-on-metal fittings that provide a secure connection, effectively preventing corrosion and overheating of contact surfaces. This durability ensures long-lasting performance even in harsh maritime conditions.

Manage Multiple Battery Banks

Designed for versatility, the ChargeMaster series offers three equal charge outputs. Smaller models come with two meters of cable for easy plug-and-play setups, while larger models provide one full output for critical service batteries and two 10 A outputs ideal for starter batteries. This flexibility allows you to efficiently manage and maintain multiple battery banks on your vessel.

Key Features

• 3-Step+ charging technology for fast and complete charging
• Comprehensive safety features to ensure safe and complete charging
• Memory function to prevent overcharging during unstable power supply
• Clear LED control panel for easy monitoring
• Simple installation process
• Integrated MasterBus system compatibility for centralized monitoring and control (excluding ChargeMaster 24/6)

General Specifications

Nominal Output Voltage	24 V
Total Charge Current	12 A
Number of Battery Outlets	3
Charge Current Second Output	12 A
Charge Current Third Output	12 A
Battery Capacity Range	24-120 Ah
Nominal Input Voltage	120/230 V (90-265 V), 50/60 Hz
AC Connection	2M AC cable
Power Supply Mode	Yes
Display/Read-Out	LED display
Fastening	4x screw
Dimensions (H x W x D)	234 x 132 x 60 mm / 9.2 x 5.2 x 2.4 in
Weight	1.8 kg / 4.0 lb
Approvals	CE, ABYC A-31, SAE J1171/ISO8846 ignition protected

Technical Specifications

Charge Characteristic	IUoUo, automatic / 3-step+ for gel/AGM/wet/Lithium Ion
Charge Voltage Bulk	28.8 V
Charge Voltage Absorption	28.5 V
Absorption Time	4 hours
Charge Voltage Float (Wet Batteries)	26.5 V
Charge Voltage Float (Gel/AGM Batteries)	27.6 V
Temperature Compensation	-60 mV/°C -33 mV/°F
Voltage Compensation	Automatic
Power Consumption (DC Side)	< 2 mA
Full Load Consumption (230 V AC)	435 W
Current Control Function	No
Power Factor Control	≥ 0.98
Temperature Range (Ambient)	-25 °C to 60 °C / -13 °F to 140 °F
Sound Level	< 52 dBA at 1M
Protection Degree	IP23
Protections	Over temperature, over load, short circuit, high/low battery voltage
Cooling	Vario fan
MasterBus Compatible	Yes

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, visit P65Warnings.ca.gov.

Additional Specifications

Charger Output Voltage	24 V
Charger Output - Amps	12 A
Charging Banks	3
Portable	No
Charger Input - Voltage	120/230 V
Box Dimensions	5"H x 7"W x 11"L
Weight	4.65 lbs
UPC	816882020100

Resources

Owner's Manual (PDF)

Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.