Shenzhen Topband Battery Co., Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, dedicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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This product specification describes the technique standards, test methods and precaution notes of prismatic type( Lithium ion) LiFePO4 rechargeable cell, manufactured by SHENZHEN TOPBAND BATTERY CO.,LTD.
| No. | item | standard | remark |
| 2.1 |
Nominal Capacity |
25Ah |
25±5℃,1C discharge |
| 2.2 | Min capacity | 24.5Ah | |
| 2.3 | Internal Impedance | ≤4mÙ | |
| 2.4 | Nominal Voltage | 3.2V | |
| 2.5 | Weight | 650±20g | |
| 2.6 |
Max charge Voltage |
3.65V |
At CC mode |
| 2.7 |
End‐of‐charge Current |
0.05C |
At CV mode |
| 2.8 | Cut‐off discharge Voltage | 2.00V | |
| 2.9 |
Standard Charge Method |
1C CC/CV | Room temperature (25±5℃) |
| 2.10 |
Max Continuous Discharge current |
3C |
Discharge Time: 18 minutes |
| 2.11 |
Max pulse Discharge Current |
5C |
Discharge Time: 10 seconds |
| 2.12 | Cycle Life | 4000cycles | At room temperature(25±5 ℃); 0.5C continuous discharge and 0.5C continouse charge current;(80% DOD) |
| 2.13 | Calendar life | 10 years | |
| 2.14 | Charging Temperature | 0～45℃ | |
| 2.15 | Discharging Temperature | ‐20～55℃ | |
| 2.16 | Storage Temperature | ‐10～30℃ |
Note at 10.2.3 |
| 2.17 | Terminal torsion | ≤5.5N∙m | Recommend Locknuts |
| 2.18 | Appearance | No break, scratch, distortion, contamination, leakage and so on | |
3.1.1 All tests defined in this Product Specification are conducted at temperature 25℃±5℃; humidity 15℅～90% RH; atmospheric pressure 86kPa～106kPa.
3.1.2. Unless there are other special instructions, all performance was tested with unused cells within 1month after production date.
The "Standard Charge" means in an ambient temperature of 25℃±5℃, the cell was discharged with 1C constant discharge current to cut‐off voltage 2.0 V, stayed in 1hour. Then charged it
with 1C constant current to 3.65V, then change into constant charge mode, until the charging current is down to 0.05C, then stop charging and standing 1hour.
The Cell shall be shipped by insulated packaging and in voltage range of 3.20~3.40 V, and 50% SOC, or in accordance with customers’ requirement. The remaining capacity before charging shall depends on the storage time and conditions. To ensure the cells in a good transport environment is necessary.