DC HOUSE ECO-LFP125002
DC HOUSE 12V 50Ah LiFePO4 Battery User Manual
Brand: DC HOUSE | Model: ECO-LFP125002
Product Overview
The DC HOUSE 12V 50Ah LiFePO4 Battery is a high-performance, lightweight, and versatile power solution designed for various outdoor and recreational applications. Featuring a built-in 75A BMS (Battery Management System), USB-C and DC output ports, and a long cycle life, this battery is ideal for trolling motors, RVs, boats, and camping.

Figure 1: DC HOUSE 12V 50Ah LiFePO4 Battery with included 4A charger and a smartphone connected via USB-C.
This battery offers a 1.5C continuous discharge rate, providing efficient power delivery for demanding loads. Its robust construction and advanced BMS ensure safety and longevity, with a projected lifespan of up to 10 years and over 4000 charge cycles.

Figure 2: The DC HOUSE 12V 50Ah LiFePO4 Battery functions as a portable 2-in-1 power box, integrating battery and trolling motor box capabilities.
Important Safety Information
Please read all safety instructions carefully before using the battery and charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Charger Heat Dissipation: The included 4A charger dissipates heat through its outer casing during operation. It is normal for the surface temperature to become high and feel hot. Always place the charger in a well-ventilated area during use to ensure safety throughout the charging process.
- Battery Connection: When connecting the charger to the battery terminals, prioritize the "vertical clamping" method. Attach the clamps to the battery terminals from the top and bottom direction for more stable contact and better conductivity.
- Packaging: The 12V 50AH battery and 4A charger may be shipped in two separate packages. If you only receive one package initially, please wait patiently for the second package to arrive.
- BMS Protection: The integrated 75A BMS provides protection against over-charge, over-discharge, over-current, short-circuit, and high-temperature conditions. Do not attempt to bypass or modify the BMS.

Figure 3: Overview of the 75A BMS protection features ensuring battery safety and longevity.
Setup and Charging
Unboxing and Initial Inspection
Upon receiving your DC HOUSE 12V 50Ah LiFePO4 Battery, carefully unbox all components. Verify that you have received the battery and the 4A charger. As noted in the safety section, these may arrive in separate packages.
Charging the Battery
Before first use, it is recommended to fully charge the battery. Use only the provided 4A charger or a compatible LiFePO4 charger with a 0V wake-up charging feature.
- Ensure the 4A charger is placed in a well-ventilated area.
- Connect the charger's output clamps to the battery terminals. Use the vertical clamping method for optimal contact. Red clamp to positive (+), black clamp to negative (-).
- Plug the charger into a standard AC power outlet.
- The charger will automatically begin charging. A full charge from 0% to 100% typically takes approximately 12.5 hours with the 4A charger. The charger's intelligent design manages Constant Current (CC) and Constant Voltage (CV) modes.

Figure 4: Illustration of the battery charging process using the 4A charger, detailing CC and CV charging phases.
Physical Installation
The battery features a fixed-hole design to prevent drops and shocks during outdoor use. Its compact size allows compatibility with most standard battery boxes on the market, optimizing installation space.

Figure 5: The lightweight design (13.2 lbs) and integrated mounting hole enhance portability and secure placement.
Operating Instructions
Powering Devices
The DC HOUSE 12V 50Ah battery is equipped with both DC and USB-C output interfaces, allowing it to power a wide range of electronic devices. The DC output port supports up to 5A, and the USB-C output port provides 45W of power.
- DC Output: Connect devices requiring 12V DC power, such as car refrigerators, portable fans, or other DC equipment.
- USB-C Output: Charge or power mobile phones, laptops, drones, cameras, and other USB-C compatible devices.

Figure 6: The battery's DC and USB-C ports provide versatile power options for up to two devices simultaneously.

Figure 7: Examples of devices and their estimated runtimes when powered by the DC HOUSE 12V 50Ah battery during outdoor activities.

Figure 8: Examples of devices and their estimated runtimes when powered by the DC HOUSE 12V 50Ah battery for indoor or general use.
Trolling Motor Applications
This battery is specifically designed to be compatible with trolling motors ranging from 30 to 65 lbs thrust. It provides reliable performance across all speeds and offers extended runtime.

Figure 9: Estimated running times for the 12V 50Ah battery when used with various trolling motor thrusts.
The 1.5C discharge rate and 75A max continuous discharge current make it highly efficient for trolling motor use compared to batteries with lower discharge rates.

Figure 10: Performance metrics for the battery, including discharge rate, BMS capacity, and typical trolling motor runtimes.
Maintenance
The DC HOUSE LiFePO4 battery is designed for long-term reliability with minimal maintenance. Its Grade A cells and advanced BMS contribute to a stable and secure power source.
Battery Management System (BMS)
The integrated 75A BMS actively monitors and protects the battery from various conditions, including over-charge, over-discharge, over-current, short-circuit, and high temperatures. This intelligent system ensures optimal performance and extends the battery's lifespan.
Long-Term Storage
For optimal battery health during long-term storage, it is recommended to store the battery at approximately 50% state of charge in a cool, dry place. Periodically check the battery voltage and recharge if necessary to prevent deep discharge.
Troubleshooting
This section provides solutions to common issues you might encounter with your DC HOUSE 12V 50Ah LiFePO4 Battery.

Figure 11: Troubleshooting guide for common battery issues.
| Problem Description | Problem Causes | Solutions |
|---|---|---|
| Bluetooth Cannot Connect |
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| The battery fails to charge |
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| LED Indicator Flashing |
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| Charger clip connection is unstable |
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Specifications
| Feature | Detail |
|---|---|
| Model Number | ECO-LFP125002 |
| Nominal Voltage | 12V |
| Capacity | 50Ah |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Max Continuous Discharge Current | 75A |
| Discharge Rate | 1.5C |
| Built-in BMS | Yes, 75A |
| USB-C Output | 45W |
| DC Output | ≤5A |
| Charger Included | 4A Charger |
| Product Dimensions | 9.4 x 6 x 7.6 inches |
| Item Weight | 13.2 pounds |
| Lifespan | 4000+ cycles, up to 10 years |

Figure 12: Detailed dimensions of the battery and charger.
Warranty and Support
Specific warranty details for the DC HOUSE 12V 50Ah LiFePO4 Battery are not provided within this manual. Please refer to the product packaging, the manufacturer's official website, or your point of purchase for comprehensive warranty information.
For technical support, troubleshooting assistance beyond this manual, or inquiries regarding your product, please contact DC HOUSE customer service directly. Contact information can typically be found on the product packaging or the official DC HOUSE website.
Product Applications
The versatility of the DC HOUSE 12V 50Ah LiFePO4 Battery makes it suitable for a wide array of applications:
- Trolling Motors: Provides reliable and long-lasting power for electric trolling motors on boats.
- Outdoor Camping: Powers portable electronics, lighting, and small appliances for an enhanced camping experience.
- RV & Marine: Ideal for recreational vehicles and marine applications, offering a lightweight and efficient power source.
- Golf Carts & Scooters: Can be used as a replacement or upgrade battery for various electric vehicles.

Figure 13: Diverse applications for the DC HOUSE 12V 50Ah LiFePO4 Battery.
Official Product Videos
No official product videos from the seller were provided in the product data for inclusion in this manual.
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