Brand New Grade A 280Ah LiFePO4 Lithium Battery Cells with QR Code

£565.00

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Ship From: China (20-45 working days)

  • China (20-45 working days)

Quantity: 4 PCS

  • 4 PCS
  • 8 PCS
  • 16 PCS
  • 32 PCS
Will not ship until [19041994]
£565.00
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China  New energy battery Brand New Grade A 3.2V 280Ah LiFePO4 Battery Cells with QR Code

Electrical specification
Parameter Specification Condition
Typical capacity 280 Ah
Typical Energy 896 Wh
Operating voltage 2.5~3.65V Cell temperature T>0°C
2.0~3.65V Cell temperature T≤0°C
Impedance (1KHz) 0.17±0.05mΩ Fresh cell (40%SOC)
Shipping capacity 112±1Ah 40% SOC
Residual capacity Per month ≤3.0% Fresh cell after 3month, 40%SOC, 25±2°C storage
Operating temperature (charging) 0~60°C
Operating temperature (discharge) -20~60°C
Cell Weight 5.34±0.30Kg N.A.
Storage Temp. -30~60°C Storage ambient humidity < 85% ROH, no condensation
Typical dimension(W*H*T) Width:173.9±0.8mm
Height:207.2±0.8mm
Thickness:71.7±0.8mm
Rest SOC ≥5% SOC interval without load or charging
Altitude ≤2000m N.A.
Cycle performance ≥6000Cycles 25±2°C, cycle test by the standard charge and discharge method under 300±20Kgf preload
Cycle fading ≤5% 25±2°C, cycle test by the standard charge and discharge method under 300±20Kgf preload for 180 cycles
Storage fading ≤5% 25±2°C, standard charging to 100% SOC storage under 300±20Kgf preload for six month
Standard charge Power 0.25P 25±2°C
Standard charge voltage Cell max voltage 3.65V N.A.
Standard charge method 0.25P constant power charge to 3.65 V, rest 5min, 0.1P constant power charge to 3.65V
Standard charge temperature 25±2°C Cell Temperature
Absolute charging temperature(Cell Temperature) 0~60°C No matter what charge mode the battery is in, stop charging once the cell temperature exceeds absolute charge temperature range.
Absolute charging voltage Max 3.65V No matter what charge mode the battery is in, stop charging once the cell voltage exceeds absolute charge voltage.
Standard discharge power 0.25P 25±2°C
Maximum discharge power(continuous) 0.5P N.A.
Discharge cut-off voltage 2.5V (Temp.)T>0°C
2.0V (Temp.)T≤0°C
Standard discharge temperature 25±2°C Cell temperature
Absolute discharge temperature -20~60°C
Capacity@55°C ≥280Ah Fresh cell,55°C,0.25P,2.5V~3.65V
Capacity@-20°C ≥155Ah Fresh cell,-20°C,0.25P,2.0V~3.65V
Continuous discharge temperature rise ≤10°C The cell is discharged in the standard discharge method.
Pulse discharge temperature rise ≤5°C The cell is discharged at 500A for 10 s under any state of
charge.
Stop charging 3.65V Stop charging when cell voltage reaches 3.65 V
First overcharge protection ≥3.69V Stop charging when cell voltage reaches 3.69 V
Second overcharge protection ≥3.8V When the battery voltage reaches 3.8V, the BMS is forced to terminate charging, and the BMS should be locked until technicians solve the problem.
Stop discharge Minimum 2.6V Minimize the discharging current when cell voltage reaches 2.6 V.
First over discharge protection Minimum 2.5V Stop discharging when cell voltage reaches 2.5V
Second over discharge protection Minimum 2.0V When the cell voltage is less than 2.0V, the cell should be charged back to 50% SOC at 0.1C in time, and the BMS should be locked until technicians solve the problem.
Short circuit protection No short circuit allowed When a short circuit occurs, the battery (cell) is disconnected by the overcurrent protection device.
Charging time out limit Charging completes within 8 hours Stop charging if changing time exceeds specification

 

Waring statement:

1. CELLS ARE POTENTIALLY DANGEROUS AND PROPER PRECAUTIONS MUST BE OBSERVED IN HANDLING AND MAINTENANCE.
2. RUNNING TESTS ON THE CELLS IMPROPERLY MAY RESULT IN SEVERE PERSONAL BODY INJURY OR PROPERTY DAMAGES.
3. WORK ON CELLS MUST BE PERFORMED ONLY WITH PROPER TOOLS AND PROTECTIVE EQUIPMENT MUST BE USED.
4. CELL MAINTENANCE MUST BE CARRIED OUT BY PERSONNEL KNOWLEDGEABLE OF CELLS AND TRAINED IN THE SAFETY PRECAUTIONS INVOLVED.
*FAILURE TO OBSERVE THE ABOVE MAY CAUSE VARIOUS HAZARDS.

 

Delivery Date: 

Ship from USA:

3-7 work days, Free Shipping & TAX

Ship from China:

By sea, 30-45 days, Free Shipping & TAX

By air, 7-18 days, Free Shipping & TAX




Product Feature:
Highly automated production equipment to ensure battery consistency.
Square aluminum shell structure, high-precision explosion-proof valve design, good safety performance.
Low internal resistance, high discharge rate, and stable discharge platform.
Green environment, ISO14000 approval, products meet GB and UN criteria, and ROHS compliant.
Long cycle life.

NOTES
1. Each cell shall be used under the strict monitor, control, and protection by the BMS.
2. Before the first use, always charge the cells to full voltage. | Please refer to: LiFePO4 battery charging guide.
3. We will match (capacity, voltage, resistance) all cells before delivery.
4. The battery is suitable for DIY lovers with experience.

Customer Reviews

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R
Ralf Stange
Freue mich, genau diese Akkus gekauft zu haben

Ich habe die Akkus genau getestet, und Sie liefern genau das, was auch versprochen wird. 1a Qualität und sehr schnelle Lieferung.

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Brand New Grade A 280Ah LiFePO4 Lithium Battery Cells with QR Code

China (20-45 working days) / 4 PCS
China (20-45 working days) / 4 PCS
£565.00