1. Introduction
Welcome to the user manual for your Humsienk 12V 314AH LiFePO4 Smart Bluetooth Battery. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your battery. Please read it thoroughly before use to ensure optimal performance and longevity of your product.
This high-performance LiFePO4 battery offers an impressive 4019Wh of energy, over 15,000 deep cycles, and features a robust 100A Battery Management System (BMS) for enhanced safety and reliability. With smart Bluetooth connectivity, you can monitor your battery's status from anywhere, making it perfect for home energy storage, RVs, marine applications, and off-grid solar power systems.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the battery and connected equipment:
- Do not short-circuit the battery terminals.
- Ensure proper ventilation when installing and operating the battery.
- Keep the battery away from heat sources, open flames, and flammable materials.
- Do not immerse the battery in water or expose it to excessive moisture.
- Use only compatible chargers and charging methods (LiFePO4 charger, Solar Panel + MPPT, Generator).
- Do not attempt to open, disassemble, or modify the battery.
- Keep out of reach of children.
- Dispose of the battery responsibly according to local regulations.
The integrated 100A BMS provides comprehensive protection against:
- Over-charging
- Over-current
- Over-discharging
- Over-heating
- Short circuits
- Low-temperature charging cut-off (prevents damage below 0°C / 32°F)

Image: Illustration of the 100A BMS protecting against various electrical faults.
3. Package Contents
- 1 x Humsienk 12V 314AH LiFePO4 Battery Unit
4. Setup and Installation
4.1 Pre-installation Check
- Inspect the battery for any visible damage. Do not install if damaged.
- Ensure all connections are clean and free of corrosion.
4.2 Wiring and System Expansion
Connect the battery to your system (e.g., inverter, solar charge controller) ensuring correct polarity (positive to positive, negative to negative). Incorrect wiring can cause severe damage.
This battery supports 4S4P configurations, allowing you to expand your energy system up to 51.2V 1256Ah, providing a massive 63.48kWh of energy. When connecting multiple batteries, ensure they are of the same type and capacity, and follow the manufacturer's guidelines for series and parallel connections.

Image: Example of a 4S4P battery bank for expandable energy storage.

Image: Battery connected to an inverter for power on demand.
4.3 Bluetooth Connection
The battery features smart Bluetooth remote control. Download the dedicated Humsienk app (if available) on your smartphone to monitor battery status, voltage, current, temperature, and other parameters in real-time. Ensure your device's Bluetooth is enabled and within range of the battery.

Image: Remote control and monitoring via smartphone app.
5. Operating Instructions
5.1 Charging
- Charge Voltage: 14.6V ± 0.2V
- Charge Method: Constant Current/Constant Voltage (CC/CV)
- Charge Temperature: 0℃ to 55℃ (32℉ to 131℉)
The battery supports three primary charging modes:
- Dedicated LiFePO4 Charger
- Solar Panel with MPPT Charge Controller
- Generator
The BMS will automatically cut off charging if the temperature drops below 0℃ (32℉) to prevent irreversible damage.
5.2 Discharging
- Discharge Temperature: -20℃ to 70℃ (-4℉ to 158℉)
- Depth of Discharge (DOD): Nearly 100%
The battery is designed for deep cycling, providing consistent power for extended periods. The BMS protects against over-discharging.

Image: Extreme temperature protection for charging and discharging.

Image: Estimated runtimes for common appliances.
6. Maintenance
The Humsienk LiFePO4 battery is designed to be maintenance-free. However, following these guidelines will help ensure its long lifespan:
- Cleaning: Keep the battery terminals and casing clean and dry. Wipe with a dry cloth if necessary.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50% state of charge and stored in a cool, dry place within the recommended temperature range.
- Temperature Management: Always operate and store the battery within its specified temperature ranges to prevent damage and ensure optimal performance. The BMS will provide protection against extreme temperatures.
7. Troubleshooting
- Battery not charging:
- Check all charging cable connections for proper contact and polarity.
- Ensure the charger is compatible and functioning correctly.
- Verify the ambient temperature is within the charging range (0℃ to 55℃ / 32℉ to 131℉). The BMS will prevent charging outside this range.
- Battery not discharging/providing power:
- Check all load connections for proper contact and polarity.
- Ensure the load is within the battery's current limits (100A BMS).
- Verify the ambient temperature is within the discharging range (-20℃ to 70℃ / -4℉ to 158℉).
- If the battery has been fully discharged, it may enter a protection mode. Reconnect to a charger to reactivate.
- Bluetooth connectivity issues:
- Ensure the battery is powered on.
- Verify Bluetooth is enabled on your smartphone and the Humsienk app is installed.
- Make sure your smartphone is within close proximity to the battery.
- Restart the app or your phone if issues persist.
If you encounter persistent issues not covered here, please refer to the Warranty & Support section for assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Humsienk |
| Model Number | 12V 314AH MINI BT |
| Type | LiFePO4 |
| Nominal Capacity | 314Ah |
| Voltage | 12.8V |
| Energy | 4019Wh |
| Weight | 61.73 lbs / 28 KG |
| Size (L x W x H) | 15.24 x 7.6 x 9.72 inch / 38.2 x 19.3 x 24.95 cm |
| Cell Type | Grade A+ LiFePO4 cells |
| BMS | 100A |
| Charge Voltage | 14.6V ± 0.2V |
| Charge Method | CC/CV |
| Charge Temperature | 0℃ to 55℃ / 32℉ to 131℉ |
| Discharge Temperature | -20℃ to 70℃ / -4℉ to 158℉ |
| Cycles | 15000+ |
| Lifespan | 10 years |
| Connection | Bluetooth-Compatible |
| Application | RV, Marine Boat, Home Energy, Solar Power Storage, Off-Grid Solar Power System |
| Certification | CE, FCC, RoHS, UL, pse, weee |
| Warranty | 5 years |
9. User Tips
- System Expansion: When expanding your energy system, ensure all batteries are of the same type and capacity, and follow the recommended 4S4P configuration for optimal performance and safety.
- Monitoring: Utilize the Bluetooth connectivity to monitor battery status and performance via the dedicated app for real-time data and proactive management.
- Temperature Awareness: Pay attention to the operating temperature ranges, especially for charging in cold environments, to ensure the BMS's low-temperature cut-off feature can protect the battery effectively.
10. Warranty & Support
Your Humsienk 12V 314AH LiFePO4 Smart Bluetooth Battery comes with a 5-year warranty, covering defects in materials and workmanship under normal use. For warranty claims or technical support, please contact your retailer or the manufacturer directly with your purchase details.





