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 |
| 3.1 | Nominal capacity | 50Ah | RT,0.5C |
| 3.2 | Min capacity | 49.5Ah | |
| 3.3 | Internal impedance | ≤1.5mΩ | RT,1000Hz |
| 3.4 | Nominal voltage | 3.2V | |
| 3.5 | Weight | 1350±50g | |
| 3.6 | Voltage range | 3.65～2.00V | |
| 3.7 | Recommended charge current | ≤1.0C | |
| 3.8 | Recommended discharge current | ≤1.0C | |
| 3.9 | Max continuous charge current | 2C | RT |
| 3.10 | Max continuous discharge current | 3C | RT |
| 3.11 | Max pulse discharge current | 5C | RT,10s,SOC≥20% |
| 3.12 | Cycle life | 2000 cycles capacity retention≥80% | RT,1C,100%DOD |
| 3.13 | Charging temperature | 0～45℃ | |
| 3.14 | Discharging temperature | -20～55℃ | |
| 3.15 | Storage temperature | -10～30℃ | |
| 3.16 | Terminal torsion | ≤5.5N·m | |
| 3.17 | Appearance | No break,scratch,distortion,contamination,leakage. | |
4.1.1 All tests defined in this Product Specification are conducted at temperature 25±2℃,humidity 15%～90%RH,atmospheric pressure 86～106kPa.
4.1.2 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±2℃,the cell was discharged with 0.5C constant current to cut-off voltage 2.0V,standing 1hour.Then charged it with 0.5C constant current to 3.65V,then change into constant charge mode,until the charging current down to 0.05C,then stop charging and standing 1h.
The Cell shall be shipped by insulated packaging and in voltage range of 3.300±0.030V, 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.