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BMS MANUAL

Battery Care: Text

BATTERY CARE & GUIDLINES

How to look after your Battery

Lithium Iron Phosphate (LiFePO4) batteries, often referred to as LiFePO4 batteries or LFP batteries, are a type of lithium-ion rechargeable battery known for their high energy density, long cycle life, and enhanced safety. Here are some important care and maintenance tips for a 12V LiFePO4 battery:

1. **Charge and Discharge Parameters:**
   - LiFePO4 batteries have specific charging and discharging parameters that should be followed to maximize their lifespan and performance. Typically, the recommended charging voltage is around 3.65-3.8V per cell, and the recommended discharge cutoff voltage is around 2.5-2.8V per cell.

2. **Avoid Overcharging and Over-discharging:**
   - Overcharging or over-discharging can damage the battery and significantly reduce its lifespan. We use a quality battery management system (BMS) that is designed for LiFePO4 batteries to prevent overcharging and over-discharging.

3. **Use a Compatible Charger:**
   - Ensure that the charger you use is specifically designed for LiFePO4 or has a gel or sealed lead acid setting and follows the appropriate charging voltage and current specifications.

4. **Store at Partial Charge:**
   - LiFePO4 batteries should be stored at a partial state of charge, typically around 30-50% of their capacity. This helps prevent the battery from becoming over-discharged during long periods of inactivity.

5. **Temperature Management:**
   - LiFePO4 batteries perform best within a specific temperature range, usually between 0°C to 45°C (32°F to 113°F). Avoid exposing the battery to extreme temperatures, as this can degrade its performance and lifespan.

6. **Avoid Rapid Temperature Changes:**
   - Rapid temperature changes can cause thermal stress on the battery, which can lead to reduced performance and potential damage. Try to keep temperature changes gradual and within the recommended operating range.

7. **Regularly Check Voltage and Capacity:**
   - Monitor the voltage and capacity of the battery periodically using a suitable battery monitor or BMS. This helps in assessing the health and performance of the battery and allows for timely maintenance or replacement if needed.

8. **Proper Installation and Wiring:**
   - Ensure that the battery is installed and connected correctly, using the correct sized wiring. Incorrect wiring or installation can cause issues and potentially damage the battery.

9. **Avoid Physical Damage:**
   - Handle the battery with care and avoid dropping, crushing, or subjecting it to any physical damage. Physical damage can lead to internal short circuits and degrade the battery's performance.

10. **Follow Manufacturer Guidelines:**
    - Always refer to our instructions and guidelines specific to your LifePower LiFePO4 battery model. Different manufacturers may have slightly different recommendations.

By following these care and maintenance tips, you can ensure the longevity, safety, and optimal performance of your 12V LiFePO4 battery.

Battery Care: Welcome

STATE OF CHARGE.

State-Of-ChargeVoltage at rest (zero current)Voltage under load (0.25C)

100%  14.0 Volt13.6 Volts

99%    13.8 Volt13.4 Volts

90%.   13.4 Volt13.3 Volts

70%.   13.2 Volt13.2 Volts

40%.   13.2 Volt13.1 Volts

30%.   13.0 Volt13.0 Volts

20%.  12.9 Volt12.9 Volts

17%.  12.8 Volt12.8 Volts

14%.  12.6 Volt12.5 Volts

9%1.  2.4 Volt12.0 Volts

0%.  10.4 Volt10.0 Volts

Battery Care: Text

STORAGE

Properly storing a Smart Life LiFePO4 (Lithium Iron Phosphate) battery and its associated Battery Management System (BMS) requires careful consideration to ensure the longevity and safety of the battery. Here's a guide on how to store a LiFePO4 battery with its BMS:

1. **Charge the Battery to a Proper State of Charge (SoC):**
   Ensure the LiFePO4 battery is charged to a moderate State of Charge, typically between 30% to 50%. Avoid storing it fully charged or completely depleted.

2. **Disconnect the Load:**
   If the battery is connected to any devices or loads, disconnect them to prevent any residual drain on the battery during storage.

3. **Check Battery Health:**
   Before storage, confirm that the battery is in good health and functioning properly. Check for any signs of damage or abnormal behavior.

4. **Temperature and Environment:**
   Store the LiFePO4 battery in a cool, dry, and well-ventilated location. Avoid exposing the battery to extreme temperatures, direct sunlight, or moisture.

5. **Isolation and Safety Precautions:**
   If possible, remove the BMS from the battery, especially if it's an external unit. Store the battery and BMS separately in a safe and secure manner, making sure they are isolated from each other and protected from physical damage.

6. **Regular Monitoring:**
   Periodically check the battery's State of Charge and ensure it remains within the recommended range. Charge the battery to the optimal storage SoC if needed.

7. **Charge Maintenance:**
   If possible, utilize a smart charger that can maintain the battery at the optimal State of Charge for storage. These chargers often have a maintenance mode or storage mode.

8. **BMS Monitoring:**
   If the BMS remains connected, monitor its status periodically to ensure it's functioning correctly and maintaining the battery within safe parameters.

9. **Prevent Over-Discharge:**
   Ensure the LiFePO4 battery does not discharge below the manufacturer's recommended minimum voltage during storage, as this can damage the battery.

10. **Regular Exercise:**
    If feasible, periodically charge and discharge the battery to maintain its health and capacity during storage.

11. **Documentation:**
    Keep records of the battery's State of Charge, maintenance activities, and any notable observations during the storage period.

12. **Follow Manufacturer Guidelines:**
    Always adhere to the manufacturer's specific recommendations for storing the LiFePO4 battery and BMS.

By following these steps, you can store a LiFePO4 battery with its BMS in a manner that preserves its health and ensures it's ready for use when needed.

Battery Care: Text
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