12V 40A DC to DC Battery Charger for Various Batteries - Ideal for RVs, Boats, and Yachts

Precautions for Installing 12V 40A DC-DC Charger

When installing the 12V 40A DC-DC charger, there are some important precautions that need to be taken into consideration. Firstly, it is recommended to install the charger in a horizontal position in order to improve venting and heat dissipation. Additionally, positioning the charger closer to the service battery is advised for optimal performance.

The addition of breakers (fuses) when using a DC-DC charger is strongly recommended. It is suggested to install a breaker between the DC-DC charger and the starter battery to ensure safety and protect the system from potential overloads.

In order to turn on the DC charger, the D+ port must be connected to the next IN+ port using the provided signal cable. This connection is crucial for activating the product and ensuring proper functionality.

Technical Specifications:

• System Nominal Voltage: 12V
• Input Voltage Range: 11.3V to 16.0V
• Charging Current: 40A/20A
• Battery Type: STD, GEL, AGM, LFP
• Charging Voltage Range: 14.6V (Lithium) / 14.4V to 14.8V (Lead Acid)
• Temperature Compensation: -3mV/°C/2V (For Lead Acid Only)
• Charging Efficiency: Max. 90%
• Max. Alternator Input Power: 680W
• Standby Self-consumption: ＜0.6A
• Operating Temperature Range: -10°C to 40°C / -14°F to 104°F
• Storage Temperature Range: -20°C to 70°C / -4°F to 158°F
• Humidity: ≤95% Non-condensing
• Dimensions: 11.65 * 8.46 * 3.35 in/ 296.0 *215.0 * 85.2 mm
• Weight: Approximately 4.85 lbs / 2.2 kg
• Input/ Output Torque: 8 N·m to 10 N·m / 70.8 lbf·inch to 88.5 lbf·inch

Compatibility and Features:

The 12V 40A DC to DC charger features knob operation for quick selection of battery type. It has an output current of 40A, with the ability to adapt to larger capacity battery packs. Additionally, there is a low current port that can limit output to 20A. The charger offers two charging and discharging current options, 20A and 40A, making it versatile for various scenarios.

Smart Multi-stage Charging:

This charger utilizes different charging modes to accommodate different battery types. For LiFePO4 batteries, it charges in 2 steps mode (CC,CV), while for Lead Acid batteries it utilizes 3-stage charging (Bulk, Absorption, and Float). This intelligent charging system maximizes efficiency and extends battery life.

Protection and Safety:

The LiTime battery charger is equipped with various protection features including over-voltage protection, low-voltage protection, over-temperature protection, short circuit protection, and output reverse polarity protection. These safety measures ensure safe operation and prevent damage to the system.

Wide Range of Applications:

With its compact and sturdy design, the LiTime 12V 40A DC to DC charger is suitable for use in RVs, commercial vehicles, boats, yachts, and more. The output end can be connected to a service battery or directly used with a DC load, providing versatility in various applications.

Customer Support:

We offer professional technical support and customer service through phone support or online services with quick feedback within 24 hours. If you have any questions or concerns, please do not hesitate to contact us. We are committed to providing the best possible support to meet your needs.

product information: