GFB Brand New LiFePO4 3.2V 280AH Rechargeable Prismatic Battery Cell DIY Automotive Grade Lithium Iron Phosphate

Enjoy Free Shipping when you order 4* 280Ah LiFePO4 cells or more.

If your configuration is different from TYPE A B or C,

please contact Big Wei Battery before you place the order.

Below are the ratings for a pack of 4 cells:

• Nominal voltage: 12.8V
• Discharge Cut-Off Voltage: 10V
• Charge Cut-Off Voltage: 14.6V
• Standard Discharge: 140A (0.5C)
• Standard Charge: 140A (0.5C)
• Fast Charge: 0.5C
• Fast Discharge: 1C
• Maximum Charge Current: 1C
• Maximum peak discharge current: 2C
• Weight: 5.55kg per cell approx 22.2kg for a set of 4
• Cycle life >6000+ times for Deep Cycle.

  Characteristics of LiFePO4 Cells:     Charge Mode & Specification:

Description/Item	Specifications	Remarks
Standard Charge Current	0.5C
Standard Charge Voltage	< 3.65V
Standard Charge Mode	Using 0.5C Constant Current (CC) to charge to 3.65V, then Constant Voltage (CV) at 3.65V to charge until the charge current reaches the lower limit of 5.0+ 0.5A.
Standard Charge Temperature	25°C	Cell Temperature
Absolute Charge Temperature	0-55°C	Terminating charge process, once the cell temperature is beyond Absolute Charge Temperature.
Absolute Charge Voltage	<3.8V	Terminating charge process, once the cell OCV is beyond Absolute Charge Voltage.

  Other Charge Mode:

Cell Temperature	Standard Charge	Rapid Charge	Cell Temperature
<0°C	Prohibited to charge	Prohibited to charge	<0°C
0-10°C	Charge Current 0.1C	Prohibited to charge	0-10°C
10-15°C	Charge Current 0.2C	Charge Current 0.3C	10-15°C
15-25°C	Charge Current 0.3C	Charge Current 0.5C	15-25°C
25-45°C	Charge Current 0.5C	Charge Current 1.0C	25-45°C
45-55°C	Charge Current 0.3C
>55°C	Prohibited to charge

    Charge cut-off and Protection:

Description	Parameters	Remarks
Charge cut-off Voltage	3.65V	Terminating charge process when cell OCV reaches 3.65V.
First Over-charge Protection	>3.8V	Limiting charge current to 0 when cell OCV reaches 3.8V.
Second Over-charge Protection	>4.0V	Limiting charge current to 0 when cell OCV reaches 4.0V. Locking BMS before the problem is identified and resolved.
Discharge cut-off Voltage	2.5V	Terminating discharge process when cell OCV reaches 2.5V.
First Over-discharge Protection	2.0V	Limiting discharge current to 0 when cell OCV reaches 2.0V.
Second Over-discharge Protection	1.8V	Limiting discharge current to 0 when cell OCV reaches 1.8V.  Locking BMS before the problem is identified and resolved.
Short Circuit Protection	Prohibit Short Circuit	Cutting off overcurrent devices (fuses, circuit breakers).
Charging Time Protection	<8h	Terminating charge process when charging time exceeds 8 hours.

  Battery Cells Features:  

• Safety Pressure Release Valve
  • Standard new safety technology for high-quality batteries.
  • Prevents explosions caused by excessive internal pressures due to overcharging, short circuits, excessive temperature, battery deformation, or puncture.
  • The safety valve on top is very important for the explosion-proof barrier. When the pressure inside the battery is built up, the safety valve opens to avoid an explosion.

 

• No Memory Effect
  • Rechargeable batteries work under conditions that are often not fully discharged, and the capacity will quickly fall below the rated capacity. This phenomenon is called the memory effect. There are memories like nickel-metal hydride and nickel-cadmium batteries, but lithium-iron phosphate batteries do not have this phenomenon. No matter what state the battery is in, it can be used with charging, no need to discharge and recharge.

·50AH Specification

·50AH IEC62619 Certification

·100AH MSDS

·100AH IEC62619 Certification

·206AH Specification

·206AH MSDS

·206AH IEC62619 Certification

·280AH Specification

·280AH MSDS

Warranty:

We are pleased to inform you that this product has successfully passed the rigorous Quality Check.

However, please note that we do not provide a warranty for this item, as we are unable to control how it will be utilized in your specific application.

For optimal usage, we highly recommend consulting with a qualified and certified technician, particularly if you are unfamiliar with operating this type of equipment.

In the event that you encounter any difficulties with the cells, we regret to inform you that we do not offer direct support for it.

Nonetheless, we are confident that with proper installation and careful attention to detail, you can prevent any potential damage from occurring.

We sincerely appreciate your understanding and cooperation in ensuring the proper use and installation of this product.