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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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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.
