1. Product Overview
This manual provides essential information for the safe and efficient use of your DC HOUSE 36V 50AH Lithium Iron Phosphate (LiFePO4) Battery and accompanying 36V 25A Charger. This system is designed for various 36V applications, including golf carts, trolling motors, boats, RVs, and off-grid systems.
Image 1.1: The DC HOUSE 36V 50AH LiFePO4 Battery and its dedicated 36V 25A Charger.
2. Safety Information
Adhere to all safety guidelines to prevent injury or damage to the battery and charger.
2.1 Battery Management System (BMS)
The battery is equipped with a 100A Bluetooth BMS that provides comprehensive protection:
- Overcharge Protection
- Over-discharge Protection
- Short Circuit Protection
- Overcurrent Protection
- High Temperature Protection
- Low Temperature Cut-off Protection
- Voltage Self-Balance
Image 2.1: Illustration of the 100A BMS and its protective functions within the battery.
2.2 Low Temperature Operation
The BMS includes a low temperature cut-off feature:
- Charging function is cut off when temperature is below 32°F (0°C).
- Discharging function is cut off when temperature is below -7.6°F (-22°C).
- Functions resume automatically when the temperature rises to 0°F (-17.8°C).
For optimal battery life, avoid charging below 32°F (0°C).
Image 2.2: Visual representation of the battery's low temperature cut-off protection during cold weather conditions.
2.3 General Precautions
- Ensure proper ventilation during operation and charging.
- Do not short-circuit the battery terminals.
- Do not disassemble, puncture, or damage the battery.
- Use only the provided 36V 25A charger.
3. Setup and Installation
3.1 Unpacking and Inspection
Upon receiving your order, you will receive two packages: one containing the 36V 50AH battery and another containing the 36V 25A charger. Inspect both packages for any signs of damage. If any components are damaged or missing, contact customer support immediately.
3.2 Installation Benefits
The DC HOUSE 36V 50AH Lithium Battery offers significant advantages over traditional lead-acid batteries:
- Simplified Installation: Replaces six 6V lead-acid batteries with a single unit, reducing wiring complexity.
- Reduced Weight: Weighs approximately 44.1 lbs (20 kg), which is about 1/5th the weight of a comparable lead-acid battery pack.
- Compact Size: Dimensions of 14.4"L x 7.4"W x 10.7"H, saving significant space (up to 2/3 compared to lead-acid).
Image 3.1: Comparison illustrating the weight reduction achieved by replacing lead-acid batteries with the DC HOUSE LiFePO4 battery.
3.3 Battery Installation
- Ensure the battery compartment dimensions are suitable for the DC HOUSE battery (14.4"L x 7.4"W x 10.7"H).
- Securely place the battery in the designated compartment. The internal battery cells are fixed by a metal fixture for enhanced stability and safety.
- Connect the battery terminals using appropriate M8 terminals. Ensure all connections are tight and secure.
- For multi-battery setups, the battery supports up to four series (4P1S) connections. Consult a professional for complex wiring configurations.
3.4 Initial Charging
Before first use, fully charge the battery using the provided 36V 25A charger. The charger features a 0V activation function and a 16.4 ft charging cable.
Image 3.2: A golf cart connected to the DC HOUSE 36V 25A charger for rapid charging.
4. Operating Instructions
4.1 General Operation
The battery is designed for reliable performance in various 36V applications. It provides consistent power output, allowing golf carts to easily climb slopes and travel 15-20 miles on a single charge.
Image 4.1: A golf cart powered by the DC HOUSE battery navigating an incline.
4.2 Bluetooth Monitoring
Monitor battery information in real-time by connecting to the DC HOUSE APP via Bluetooth. The app allows you to view charge status, voltage, temperature, and other critical parameters.
- Download the DC HOUSE app from your smartphone's app store (available for iOS and Android).
- Register an account within the app to access advanced features.
- Enable Bluetooth on your device and connect to the battery.
- Monitor battery status and settings through the app interface.
Image 4.2: A user monitoring the battery status via the DC HOUSE smartphone application.
4.3 Charging the Battery
Use the provided 36V 25A charger. It takes approximately 2 hours to fully charge the 50AH battery. The charger's green light will remain solid when fully charged.
5. Maintenance
LiFePO4 batteries require minimal maintenance compared to lead-acid batteries. Follow these guidelines for optimal performance and longevity:
- Regular Inspection: Periodically check battery terminals for corrosion or loose connections. Clean as necessary.
- Temperature Management: Avoid operating or storing the battery in extreme temperatures. Refer to the specifications for recommended ranges.
- Charging Practices: Always use the specified charger. Avoid over-discharging the battery, though the BMS provides protection against this.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% capacity and stored in a cool, dry place.
6. Troubleshooting
If you encounter issues with your DC HOUSE battery, refer to the following troubleshooting steps:
6.1 Battery Not Discharging/No Power Output
If the battery appears charged but provides no power at the terminals (e.g., multimeter reads less than 40V), the Battery Management System (BMS) discharge function may be off. This can occur if the battery was deeply discharged or due to a safety trigger.
- Download and Register App: Ensure you have the DC HOUSE app installed and have registered an email/account. Advanced features require a registered account.
- Connect via Bluetooth: Add the battery to the app via Bluetooth following the normal instructions.
- Charge Fully: Charge the battery completely. Verify the charge status in the app.
- Access Advanced Settings: From the battery's home info page in the app, tap the battery name at the top center 5 times quickly. A pop-up will ask to access advanced controls; confirm.
- Check Discharge Switch: A wrench icon will appear in the top right corner; tap it. In the advanced controls, verify that the 'Discharge Switch' is ON. If it is OFF, switch it ON.
- Function Setting (if switch won't stay on): If the discharge switch does not remain ON, navigate to the 'Data' tab at the top, then access 'Function Setting'. Turn the 'Switch Function' OFF. Return to the 'Control' tab; the discharge switch should now be engaged.
- Verify Voltage: Use a multimeter to confirm the battery is now outputting 40V or more at the terminals.
6.2 App Connectivity Issues
If the app is not connecting or functioning correctly:
- Ensure Bluetooth is enabled on your smartphone and the battery is within range.
- Restart the app and your phone.
- If using an Android device and experiencing persistent issues, contact DC HOUSE customer service for potential alternative app versions.
6.3 Battery Capacity Attenuation in Cold Weather
In very low winter temperatures, battery charging and discharging may experience capacity attenuation. For charging, ensure the ambient temperature is above 32°F (0°C) to prevent this.
7. Specifications
7.1 Battery Specifications (Model: ECO-LFP3650)
Image 7.1: Detailed parameters for the DC HOUSE 36V 50AH LiFePO4 battery.
| Parameter | Value |
|---|---|
| Model | 38.4V 50AH |
| Rated Capacity | 50Ah / 1920Wh |
| Max. Continuous Charge/Discharge | 100A / 100A |
| Peak Current | 200A / 10s |
| Operation Voltage | 30-43.8V |
| Number of Series and Parallel Connection | 4P1S |
| Dimensions (L x W x H) | 14.4" x 7.4" x 10.7" |
| Weight | 44.1 lbs |
| Terminal Type | M8 |
7.2 Charger Specifications
Image 7.2: Technical specifications for the DC HOUSE 36V 25A battery charger.
| Parameter | Value |
|---|---|
| Input Voltage | 100-240VAC |
| Charging Voltage | 43.8V |
| Max Charging Current | 25A |
| Working Temperature | -20°C ~ +45°C |
| Storage Temperature | -40°C ~ +70°C |
| Waterproof Rating | IP65 |
| Compatible Battery Type | LiFePO4 Batteries |
7.3 Discharge Rate for Trolling Motors
Image 7.3: Guide for expected running times with various trolling motor thrusts.
| Thrust | Max. Working Current Need | Battery Capacity Need | Running Time (High-speed) | Running Time (Mid-speed) | Running Time (Low-speed) |
|---|---|---|---|---|---|
| 36V 105 lbs | 41A | 36V 50AH*1 | 1.2 hrs | 2.5 hrs | 8 hrs |
| 36V 112 lbs | 52A | 36V 50AH*1 | 1 hr | 2 hrs | 6 hrs |
Note: The maximum operating current is recommended not to exceed 100A.
8. Warranty and Support
8.1 Warranty Information
Specific warranty details for the DC HOUSE 36V 50AH Lithium LiFePO4 Battery and Charger should be obtained directly from the manufacturer or your point of purchase. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting, or any questions regarding your product, please contact DC HOUSE customer service. You can typically find contact information on the product packaging, the official DC HOUSE website, or through the retailer where the product was purchased.
