Mastervolt ChargeMaster Plus 12/35-3 Battery Charger

The ChargeMaster Plus 12/35-3 Battery Charger by Mastervolt is the ultimate solution for marine enthusiasts seeking reliable and efficient battery charging on the water. Designed to deliver fast and complete charging for all types of batteries, including Lithium-Ion, the ChargeMaster ensures your marine adventures are powered without interruption. With its innovative 3-step+ charging technology and seamless MasterBus integration, this charger enhances battery performance and longevity, making it an essential addition to any boat's electrical system.

Efficient and Intelligent Charging

The Mastervolt ChargeMaster series is engineered to optimize battery health through a sophisticated 3-step+ charging process. This method not only ensures rapid charging but also fully restores depleted batteries, enhancing their overall lifespan. Whether you're docked or on the move, the ChargeMaster guarantees consistent and complete charging, maintaining your batteries in peak condition.

Seamless Integration with MasterBus

All ChargeMaster models, except the ChargeMaster 12/10, ChargeMaster 12/15-2, and ChargeMaster 24/6, effortlessly connect to a MasterBus network using a single cable and connection. This streamlined setup allows for centralized, local, or remote monitoring, configuration, and control of your entire marine electrical system. Experience the convenience of managing multiple Mastervolt products with ease, ensuring a cohesive and efficient power setup on your vessel.

Clear and User-Friendly Display

The ChargeMaster features a brightly lit LED display that provides real-time information on charge current, voltage, charging phase, and battery status. Easily monitor the percentage of available Ah capacity and MasterBus communication status. The intuitive control panel, equipped with three adjacent buttons, allows for straightforward operation and adjustments, enabling you to manage your charging system with confidence.

Robust and Reliable Connections

Designed for the demanding marine environment, the ChargeMaster incorporates solid metal-to-metal connectors with strain relief to prevent corrosion and overheating. These durable connections ensure a long-lasting and safe charging experience, even in harsh conditions. Trust the ChargeMaster to maintain the integrity of your electrical connections, providing uninterrupted power for your marine adventures.

Versatile Charging Capabilities

The ChargeMaster series is equipped to handle multiple battery banks simultaneously, making it ideal for boats with extensive electrical systems. Smaller ChargeMaster models come with two meters of cable for a plug-and-play solution, while larger models feature one full output for service batteries and two 10 A outputs perfect for starter batteries. Additionally, the ChargeMaster can supply your system with DC power even when batteries are disconnected, allowing you to run essential appliances like lights or refrigerators without relying on the battery bank.

Universal Voltage Compatibility

With auto-ranging capabilities, the Mastervolt ChargeMaster automatically adjusts to any mains voltage (90-265 V AC, 50 or 60 Hz), ensuring optimal performance worldwide. This feature guarantees fully automatic operation regardless of your location’s available power supply, making the ChargeMaster a versatile choice for international marine excursions. The cos phi 1-regulation further maximizes generator efficiency, enhancing the overall performance of your power system.

Product Features

• Ideal for recreational and semi-professional marine use
• Compatible with all battery types, including Lithium-Ion
• Advanced 3-Step+ charging technology for rapid and thorough charging
• Memory function safeguards against overcharging during power fluctuations
• Comprehensive safety features ensure safe and complete charging
• Supports charging capacity up to 1000 Ah battery banks
• Easy connection and quick installation process
• Capable of charging multiple battery banks simultaneously
• Integrated MasterBus functionality for seamless system management
• Clear LED control panel for effortless system operation
• Provides DC power supply even without connected batteries

Technical Specifications

Download the Owner's Manual (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.