3.2V 25Ah Rechargeable Lifepo4 Battery / Lifepo4 Ev Battery Pack Rechargeable
Brand Name:Topband
Certification:CE/UN38.3/MSDS/UL
Model Number:TB-027070180D-Fe-25Ah
Minimum Order Quantity:1000pcs
Delivery Time:2~4weeks for samples; 4~6weeks for mass production
Payment Terms:L/C, T/T
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Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
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1. LiFePO4 Cell 3.2V 25Ah Feature
- Good safety performance
- High power, maxiumu discharge current up to 3C
- Long cycle life time, ≥2000 cycles (100% DOD)
- Low self-discharge
- No Memory Effect
- No pollution during manufacture and usage.
2. LiFePO4 Cell 3.2V 25Ah Specification
| Item | Specification | Remark | |
| 5.0 Nominal Capacity | 25Ah | 0.5C discharge capacity | |
| 5.1 Typical Capacity | 26Ah | ||
| 5.2 Internal Impedance | ≤6.0mΩ | By AC 1KHz | |
| 5.3 Nominal Voltage | 3.20V | ||
| 5.4 Cell Weight | 650±20g | containing package | |
| 5.5 End-of-charge Voltage | 3.65V | At CC mode | |
| 5.6 End-of-charge Current | 0.05C | At CV mode | |
| 5.7 End-of-discharge Voltage | 2.00V | ||
| 5.8 Charge Method | 0.5C CC/CV | 180 min | |
| 5.9 Quick Charge Method | 1C CC/CV | 90 min | |
| 5.10 Max Continuous Discharge current | 50A | Continuous Discharge Time: 30 minutes | |
| 5.11 Max pulse Discharge Current | 75A | Continuous Discharge Time: 10 seconds | |
| 5.12 Cycle Life | ≥2000cycles | 0.5C Continual Discharge: ≥80% (100% DOD) | |
5.13 Operating Temperature Range | Charging Temperature | 0～45℃ | Ambient temperature:25℃±5℃ Cell exterior temperature must be <65℃ |
| Discharging Temperature | -20～55℃ | Ambient temperature: 25℃±5℃ Cell exterior temperature not exceed 80℃ | |
| Storage Temperature | -20～35℃ | Recommended temperature range for long term storage is –10~ +30°℃ | |
| 5.14 Shelf Life | 2 year | ||
| 5.15 Appearance | Without break, scratch, distortion, contamination, leakage and so on | ||
3. LiFePO4 Cell 3.2V 25Ah Electrical Characteristics & Test Condition
| Test item | Test Method | Criteria |
1. High Temperature Performance | A cell is charged in accordance with 6.2, and stored in an ambient temperature of 55℃±2℃ for 4 h,then discharged to cut-off voltage at a constant current of 0.5C. After that, fetch out the cell and place it in the ambient temperature of 23℃±2℃ for 4 h, then check its appearance. | 1.Capacity retention:≥95%; 2. No distortion, no rupture. |
2. Low Temperature Performance | A cell is charged in accordance with 6.2,and stored in an ambient temperature of -20℃±2℃ for 20hours,then discharged to cut-off voltage at a constant current of 0.5C. After that , fetch out the cell and place it in the ambient temperature of 23℃±2℃for 4hours, then check its appearance. | 1.Capacity retention:≥60%; 2.Nodistortion,no rupture |
| 3. 1C Normal Discharge Performance | A cell is charged in accordance with 6.2, then discharged to cut-off voltage at a constant current of 1C in an ambient temperature of 23℃±2℃. After that,fetch out the cell and place it in the ambient temperature of 23℃±2℃for 4h, then check its appearance | Capacity retention:≥95% |
| 4. 2C Normal Discharge Performance | A cell is charged in accordance with 6.2, then discharged to cut-off voltage at a constant current of 2C in an ambient temperature of 23℃±2℃. After that,fetch out the cell and place it in the ambient temperature of 23℃±2℃for 4h, then check its appearance | Capacity retention:≥90% |
5. Capacity Retention | A cell is charged in accordance with 6.2, and stored in an ambient temperature of 23℃±2℃ for 28d, then discharged to cut-off voltage at a constant current of 0.5C. | Capacity retention:≥80% |
6. Cycle Life (23℃±2℃) | A cell is charged to end-of-charge voltage at a current of 0.5C, and then charged at a constant voltage of 3.65V until the charge current is less than 0.05C, after that stored for 20min; Subsequently, the cell is discharged to cut-off voltage at a constant current of 0.5C, and stored 30min; prior to next charge-discharge cycle. The cell shall be continuously charged and discharged for 2000 times. | capacity retention:≥80% |
4. LiFePO4 Cell 3.2V 25Ah Charateristic
5. LiFePO4 Cell 3.2V 25Ah dimension
6. Similar LiFePO4 Cell 3.2V 10AH/12Ah/20Ah/25Ah/27Ah/50Ah
7. Storage & Transportation
- Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.
- Battery should be stayed in the ware house -20℃～35℃ where it’s dry, clean, shade, and well-ventilated.
- The battery should be stored in 50% SOC during transportation.
- The battery need to be charged every 6 months if out of use.
- Keep the battery against dropping, turning over and serious stacking during loading.
8. Warning & Tips
Please read and follow the specification and caution remarks on battery surface before use the battery. Improper use may cause heat, fire, rupture, damage or capacity deterioration of the battery. Shenzhen Topband Battery Co., Ltd. Describes is not responsible for any accidents caused by the usage without following our specification.
9. Certification
3.2V 25Ah Rechargeable Lifepo4 Battery / Lifepo4 Ev Battery Pack Rechargeable
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