DC HOUSE ECO-LFP125002

DC HOUSE 12V 50Ah LiFePO4 Battery User Manual

Model: ECO-LFP125002

1. Introduction

This manual provides essential information for the safe and efficient use of your DC HOUSE 12V 50Ah LiFePO4 Battery. Please read all instructions carefully before installation and operation. Keep this manual for future reference.

2. What's in the Box

  • 1 x DC HOUSE 12V 50Ah LiFePO4 Battery
  • 1 x 4A Charger

Note: The battery and charger may ship in two separate packages. Please wait patiently if you receive one before the other.

3. Key Features

  • High Continuous Discharge Rate: Features a 1.5C discharge rate with a maximum continuous discharge current of 75A, suitable for various loads including trolling motors up to 65lbs.
  • Versatile Output Ports: Equipped with DC and USB-C interfaces for powering mobile phones, computers, drones, cameras, car refrigerators, and other DC equipment.
  • Advanced Battery Management System (BMS): Built-in 75A BMS provides protection against over-charge, over-discharge, over-current, short-circuit, and high-temperature conditions.
  • 0V Wake-up Charging: The included 4A charger supports a 0V wake-up feature to restore deeply discharged battery cells.
  • Lightweight and Portable: Weighing only 13.2 pounds, this battery is significantly lighter than traditional lead-acid batteries, enhancing portability for outdoor use.
  • Long Lifespan: Constructed with automotive Grade A cells, offering a lifespan of up to 10 years and 4000+ deep cycles.

4. Setup and Installation

Ensure all connections are secure and correct before use. Always prioritize safety during installation.

4.1 Connecting the Charger

When connecting the 4A charger, use the vertical clamping method by attaching the clamps to the battery terminals from the top and bottom direction. This ensures more stable contact and better conductivity.

DC HOUSE 4A Charger with alligator clips
Figure 1: The 4A charger included with the battery, featuring alligator clips for connection.

4.2 Battery Terminals

The battery features standard terminals for secure connections. Ensure proper polarity when connecting to devices or other batteries.

Top view of DC HOUSE 12V 50Ah LiFePO4 Battery showing terminals
Figure 2: Top view of the battery, highlighting the positive (red) and negative (black) terminals.

5. Operating Instructions

5.1 Using DC and USB-C Ports

The battery is equipped with DC and USB-C output ports to power various electronic devices. Simply connect your device to the appropriate port.

DC HOUSE battery powering a fan and charging a phone via USB-C
Figure 3: The battery providing power to a portable fan via a DC output port and charging a smartphone via a USB-C output port.

5.2 Trolling Motor Compatibility

This battery is ideal for trolling motors with 30–65lbs thrust, providing up to 10 hours of runtime at low speed and reliable performance across all speeds.

Man fishing on a boat with DC HOUSE battery powering a trolling motor
Figure 4: The DC HOUSE battery in use with a trolling motor on a fishing boat.

6. Charging Instructions

The included 4A charger is designed for optimal charging of your LiFePO4 battery.

6.1 Charger Operation

The 4A charger utilizes Constant Current (CC) and Constant Voltage (CV) modes for efficient charging. It takes approximately 12.5 hours to fully charge the 50Ah battery from 0% to 100%.

Diagram showing CC and CV charging modes and a DC HOUSE battery being charged by a 4A charger
Figure 5: Illustration of the Constant Current (CC) and Constant Voltage (CV) charging phases, and the 4A charger connected to the battery.

6.2 Charger Heat Dissipation

It is normal for the 4A charger's outer casing to become warm or hot during operation due to heat dissipation. Place the charger in a well-ventilated area during use to ensure safety.

7. Safety Features (BMS)

The built-in 75A Battery Management System (BMS) provides comprehensive protection for the battery, ensuring safe and reliable operation.

Diagram illustrating the internal BMS and its various protections
Figure 6: An exploded view diagram of the battery showing the internal BMS and its protective functions, including over-charge, over-discharge, over-current, short-circuit, and high-temperature protection.

7.1 Low Temperature Protection

The battery is designed with low-temperature protection features. In extremely cold conditions, the BMS may prevent charging or discharging to protect the battery cells.

Video 1: This video demonstrates the low-temperature protection feature of a DC HOUSE lithium battery, showing how it stops charging/discharging when temperatures drop below safe operating limits and recovers when temperatures rise.

8. Usage Scenarios

The DC HOUSE 12V 50Ah LiFePO4 Battery is designed for a wide range of outdoor and off-grid applications.

8.1 Outdoor and Camping

Its lightweight design and versatile ports make it perfect for outdoor camping, RVs, and golf carts, providing power for various devices.

DC HOUSE battery used for outdoor camping, powering a mini-fridge, fan, drone, and fish finder
Figure 7: The battery in an outdoor camping setting, illustrating its use to power a mini-fridge, fan, drone, and fish finder.

8.2 Indoor and Home Backup

The battery can also serve as a reliable power source for indoor devices or as a backup during power outages.

DC HOUSE battery used indoors, powering an LED light, laptop, phone, and camera
Figure 8: The battery in an indoor setting, demonstrating its ability to power an LED light, laptop, phone, and camera.

9. Specifications

FeatureValue
Model NumberECO-LFP125002
Product Dimensions9.4 x 6 x 7.6 inches
Item Weight13.2 pounds
Output Voltage12 Volts (DC)
Rated Capacity50Ah
Max Continuous Discharge Current75A
DC Port Type5.5*2.1mm
Max Charge & Discharge Current of DC Port5A
Max Output Power of Type-C Port45W/50W
Charging Voltage14.4-14.6V
Charger Input Voltage90-130V AC
Charger Max Charging Power300W
Charger Max Charging Current4A

10. Maintenance

To ensure the longevity and optimal performance of your LiFePO4 battery, follow these general maintenance guidelines:

  • Store the battery in a cool, dry place when not in use.
  • Avoid exposing the battery to extreme temperatures.
  • Regularly check terminal connections for tightness and cleanliness.
  • Do not attempt to disassemble the battery.

11. Troubleshooting

If you encounter any issues with your DC HOUSE 12V 50Ah LiFePO4 Battery, please refer to the following general advice:

  • If the battery is not charging, ensure the charger is properly connected and receiving power.
  • If a device is not powering on, check the battery's charge level and ensure the device is correctly connected to the appropriate port.
  • If the battery stops functioning in cold temperatures, allow it to warm up to above 19.4°F (for charging) or 14°F (for discharging) for recovery.
  • For persistent issues, contact DC HOUSE customer support for assistance.

12. Warranty and Support

DC HOUSE is committed to providing reliable products and thoughtful customer service. Our customer service team is available to assist with product information, installation guidance, and purchasing advice.

For any inquiries or support needs, please visit the official DC HOUSE store on Amazon or contact customer service directly. Our goal is to ensure a smooth buying experience and worry-free usage of your product.

Please refer to your purchase documentation for specific warranty terms and conditions.

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