Abyss Battery 12V-43.8V 10A DC-DC Charger

Description

This is a fully automatic DC-DC charger designed to charge both your starting battery and a 36V Trolling Motor Battery from your outboard engine's alternator. It serves as a power supply system for RVs, campers, and boats.

DC-DC charging refers to charging an auxiliary battery using an alternator/generator and the starting battery as the source.

1. While underway, the outboard engine's alternator can quickly charge the 36-Volt trolling motor battery through the full power of this DC-DC charger.
2. The charger draws power from the main starting battery, boosting or reducing the voltage as needed to meet standard operating requirements for the battery being charged.

Features

• Fully automatic charging: The controller can remain connected to the starting battery for continuous charging. The starting battery will not discharge in reverse when the vehicle is stopped or stationary.
• Stable output voltage of 43.8V.
• ACC control port to turn off the output voltage.
• Intelligent chip with voltage wake-up function.
• 100% full rated power.
• 100% full stable output current.
• 100% burn-in tested.
• Cooling by free air convection.
• IP67 waterproof Epoxy potting, anti-vibration, and dustproof construction.
• Under-voltage protection: Identifies the starting battery voltage to activate the charger.
• Overshoot protection (Emergency start function) if needed.
• Over-temperature protection: Operating temperature range of the shell is -40 to 85°C.

Installation Steps

1. Turn off all power and load device switches.
2. Connect the OUTPUT "+" terminal to the positive pole of the load device or auxiliary 36V battery. Connect the OUTPUT "-" terminal to the negative pole of the load device or auxiliary 36V battery.
3. Connect the INPUT "+" terminal to the main battery or generator positive pole and the INPUT "-" terminal to the main battery or generator negative pole (assuming a 12V starting battery).
4. Turn on the power and load switches; the converter will operate normally.
5. The Blue wire (ACC) MUST be connected to the "+" Terminal of the starting battery.

Connection Diagram and Notes

The diagram illustrates the physical connections for the DC-DC charger.

Diagram Description: The charger unit has terminals labeled ACC, INPUT (+/-), and OUTPUT (+/-). Wires are shown connecting:

• Input (+) and (-) terminals are connected to the STARTING BATTERY.
• Output (+) and (-) terminals are connected to the MAIN BATTERY.
• The ACC terminal is shown connected to the STARTING BATTERY (+).

Notes:

• Wires: 8 gauge wire is recommended for the input connection, and 14 gauge wire for the output. If the wiring run exceeds 6.5 feet, a thicker gauge wire is advised.
• Input Voltage/Current: The input voltage should be sufficient to support the operation. (Note: The text states "The Input Voltage should equal more than 40A", which may be a typo and could refer to current or source capacity).
• ACC Function: The DC charger begins operation only after the starting voltage reaches 13.3V at the control terminal. The ACC voltage range is 3V~36V. The ACC wire can be directly connected to the 12V input terminal if no additional control is necessary.
• Polarity: Ensure all polarities are correct before wiring; reverse connections will damage the converter.
• Connection Reversal: DO NOT connect input and output in reverse.
• Battery Capacity: Ensure the battery capacity is sufficient to provide adequate power. Insufficient input energy will cause the voltage to decrease automatically.
• Ventilation: Install the charger in a well-ventilated environment to prevent over-temperature protection and current limiting.
• Cables: Cables must be fitted with large current lugs and securely attached.
• Installation Location: Install the charger as close to the main battery as possible, and maintain a clean, tidy, and ventilated surrounding environment.

Output Current Curve

The output current curve illustrates the charging stages over time (t).

• Bulk Phase: Represents the initial stage where the charger delivers maximum current (100% charge current).
• Absorption Phase: The current gradually decreases as the battery voltage rises.
• Float/Constant Voltage Phase: The voltage remains constant (approximately 3 hours) while the current is minimal, maintaining the battery's charge.

Parameter Specifications