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Brand New LiFePO4 Automotive Grade GFB 3.2V 50Ah Rechargeable Prismatic Battery Cell DIY Lithium Iron Phosphate
$69.00 – $1,104.00 (-17%)
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Description
Certification & Warranty
Know More about GANFENG
Description
Enjoy Free Shipping when you order 4* 50Ah LiFePO4 cells or more.
Big Wei Battery supplies welding service for free.
If your configuration is different from TYPE A B C or D,
please contact Big Wei Battery before you place the order.
Please note that Type A comes with 4 different options:
Type A-1 / Type A-2 / Type A-3 / Type A-4
The cells will be wrapped together when you choose type B C or D,
as is shown in the picture below:
Below are the ratings for a pack of 4 cells (12V):
- Nominal voltage: 12.8V
- Discharge Cut-Off Voltage: 10V
- Charge Cut-Off Voltage: 14.6V
- Standard Discharge: 25A (0.5C)
- Standard Charge: 25A (0.5C)
- Fast Charge: 0.5C
- Fast Discharge: 1C
- Maximum Charge Current: 1C
- Maximum peak discharge current: 2C
- Weight: 1.2kg per cell (4.8kg for a set of 4)
- Cycle life: >2000+ times.
Charge Mode & Specification:
Other Charge Mode:
Discharge Mode:
Charge cut-off and Protection:
Battery Cells Features:
| 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. |
| 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 | ||
| Description | Parameters | Remarks | |
| Standard Discharge Current | 25.0A | * 25°C | |
| Maximum Continuous Discharge Current | 50.0A | * N.A. | |
| Maximum Discharge Long-Pulse Current | 100.0A | * 3 minutes maximum | |
| Maximum Discharge Short-Pulse Current | 150.0A | * Cell temperature lower than 50°C * When SOC>40%, 60s maximum * When SOC<40%, 10s maximum | |
| Discharge cut-off Voltage | >2.5V | * N.A. | |
| Standard Discharge Temperature | 25°C | * Cell Temperature | |
| Absolute Discharge Temperature | -20–55°C | Regardless of the discharge mode, the discharge process should be terminated, once the cell temperature is beyond Absolute Discharge Temperature. |
| 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. |
- 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.
Certification & Warranty
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.
Know More about GANFENG
serdar.kiran2 (verified owner) –
Very happy dealing with this company. Customer service and communication is excellent and the 50ah cell’s arrived within days of purchase. The package was excellent and the content was protected. The 50ah cell’s are excellent quality and I am confident that they are grade A cell’s. I will recommend for sure. I will buy more cell’s again.
Ahmed K. (verified owner) –
Excellent cells. A grade for sure. I have tested these cells with a daly smart bms and they have performed very well.
Colin (verified owner) –
Very happy super quick delivery at a great price
raaidynwork (store manager) –
Thank you so much! We try to be the most effecient we can, so glad we are able to exceed expectations!
Cheers Big Wei Team
Tim Terry (verified owner) –
The LiPo battery cells all tested the same voltage and the battery performed to specification.
Peter Keppie (verified owner) –
The batteries came very well packaged and the bus bars and bolts were included in the order which was a pleasant surprise as I wasn’t sure that they would. Great value and very happy with the service.
raaidynwork (store manager) –
We are very glad to know you have recieved the cells in good order!
Thank you!
Cheers Big Wei Team
Owen Ronalds (verified owner) –
ross m. (verified owner) –
cells received in good order, well-balanced and recharged and pressed into service almost immediately on receipt – working well so far 🙂
ross mason (verified owner) –
thank you for having the right product at the right price, and available locally (australia). with the addition of a 30 amp daly bms my four 50Ah which you kindly supplied with busbars and double-sided adhesive are working well in a simple ‘wet bag’ in my kayak for my watersnake electric motor and i am powering up and down the local river so much easier than paddling/pedalling (the latter of which was not kind to my late middle-age knees)
ross mason (verified owner) –
thank you again for having the right product at the right price, and available locally (australia). with the addition of a 30 amp daly bms my four 50Ah which you kindly supplied with busbars and double-sided adhesive are working well in a simple ‘wet bag’ in my kayak for my watersnake electric motor and i am powering up and down the local river so much easier than paddling/pedalling (the latter of which was not kind to my late middle-age knees)