Mastervolt Charge Mate Pro Lithium 90

The Charge Mate Pro Lithium 90 is the ultimate solution for efficient and reliable battery management in your marine electrical system. Designed specifically for boating and marine applications, it ensures seamless distribution of power between your starter and service batteries, safeguarding against unexpected power losses and enhancing the overall performance of your vessel.

Overview

The Charge Mate Pro Lithium 90 is an advanced electronic charge relay that prioritizes charging your primary battery while effectively managing the secondary battery. Unlike traditional mechanical charge relays, it offers high efficiency, reverse current protection, and limits the charge current to prevent overloading the secondary battery. This ensures that your starter battery remains charged and ready, reducing the risk of being stranded due to a depleted main battery.

Key Features

• Dual Battery Charging: Charges two battery banks from a single charging source, making it ideal for both starter and service batteries.
• High Efficiency: Electronic charge coupling minimizes voltage drop, ensuring more effective power distribution.
• Current Limitation: Limits the charge current to 90A, protecting your secondary batteries from overcharging.
• Reverse Current Protection: Automatically blocks return current, preventing battery drain and maintaining battery health.
• Priority Charging: Ensures the primary battery is always charged first, enhancing system reliability.
• Emergency Start Function: Optional bypass switch allows for an emergency start, providing peace of mind during critical situations.
• Robust Construction: IP65-rated electronics housed in a corrosion-resistant casing with aluminum heat sinks, perfect for marine environments.
• Easy Installation: Fast and straightforward setup, compatible with a wide range of marine chargers and alternators.
• LED Monitoring: Provides clear status indications and warnings for effortless system monitoring.

Applications

Ideal for both leisure and professional marine applications, the Charge Mate Pro Lithium 90 is perfect for:

• Boats and yachts with high power demands.
• Vessels requiring prioritized or current-limited charging.
• Marine electrical systems integrating Lithium, AGM, GEL, or traditional starter batteries.
• Installation scenarios involving bow thrusters, trolling motors, and other auxiliary equipment.

Technical Specifications

General Specifications

Technical Specifications

• Connection Options: 3 x fast-on connectors for switch, ground, and status.
• Switch: Compatible with an optional single pole ON-OFF-ON switch for remote operation.
• Status Indicator: Supports an optional LED indicator for monitoring.
• Power Consumption: Less than 1 mA when switch is open at 12/24 V DC.
• Battery Compatibility: Suitable for all battery types, including Lithium starter batteries. (For AGM/GEL starter battery applications, use part number 83309002)
• Switch On Voltage: 13.7 V (12 V system) / 27.4 V (24 V system)
• Switch On Delay: 5 seconds
• Switch Off Voltage: 13.3 V (12 V system) / 26.6 V (24 V system)
• Switch Off Delay: 2.5 seconds
• Relay Type: Electronically controlled MOSFETs with a maximum voltage drop of 0.2 V
• Operating Temperature Range: -40°C to 60°C ambient
• Protection Degree: IP65-rated for waterproof and dustproof performance

Why Choose Charge Mate Pro Lithium 90?

Investing in the Charge Mate Pro Lithium 90 means choosing a reliable, efficient, and high-performance battery management system tailored for marine use. Its robust construction, advanced features, and ease of installation make it the perfect addition to any boat or yacht, ensuring your electrical systems run smoothly and your batteries remain in optimal condition.

Additional 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.