Abyss Battery Bi-Directional DC-DC Charger - AB-MDX13-60
The from Abyss Battery is a marine-grade, high-performance power management device designed to transfer electrical energy seamlessly between different battery systems. Its bi-directional functionality allows it to operate as both a charger and a converter, making it suitable for managing 12V and 36V lithium battery systems onboard boats.
Materials and Construction: The charger features a corrosion-resistant aluminum casing with marine-grade sealing, ensuring durability in harsh marine environments. Internally, it employs electronic components rated for continuous operation at a maximum output of 720W, with protection circuits against overcurrent, overvoltage, and thermal overload for enhanced reliability.
Dimensions and Weight: The unit measures approximately 12 inches in length, 8 inches in width, and 4 inches in height, with an estimated weight of 4.5 kilograms. It is designed for easy installation within standard marine battery compartments or electrical panels.
Features
- Bi-directional power transfer capabilities facilitate charging and power sharing between 12V engine and 24V/36V lithium systems
- Maximum output power of 720W (12V 60A) for efficient charging of lithium batteries
- Adaptive transfer mode based on battery status and load demands
- Built-in protection features include overcurrent, overvoltage, thermal regulation, and short-circuit protection
- Compatible with lithium, AGM, and lead-acid batteries, emphasizing versatility for different marine applications
- Battery management system integration supports optimal charge cycles and prolongs battery lifespan
- LED indicators display operational status, voltage levels, and fault conditions
- Weather-resistant construction ensures sustained operation in marine environments
What our Experts Think
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True bi-directional energy management – The AB-MDX13-60 intelligently transfers power both ways, charging 36V/24V lithium trolling systems from 12V alternators and sending power back to maintain the starter battery when the engine is off.
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High-output 720W performance – Delivers up to 12V 60A input power, enabling fast recharge of large lithium banks and significantly reducing downtime between fishing runs.
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Marine-grade IP67 protection – Fully sealed, die-cast aluminum construction ensures reliable operation in wet, saltwater, and high-vibration environments.
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Smart automatic switching – Software-controlled logic automatically manages boost (12V → 36V) and buck (36V → 12V) modes with no manual intervention required.
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Ultra-efficient power transfer – Achieves up to ~95% efficiency, minimizing energy loss and maximizing usable onboard power.
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System simplification advantage – Reduces or eliminates the need for separate house batteries, cutting weight, wiring complexity, and installation cost.
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Advanced safety integration – Built-in protections against over-voltage, over-temperature, and short circuits ensure stable operation in demanding marine conditions
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