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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12V Lithium Battery Module For UPS / RV / Solar Energy / LED Light
1. Lithium battery module feature
2. Lithium battery module can be assembled with various cells,
Available to make all customzied battery pack. Cell's details as below:
| 3.2V Lithium Iron Phosphate Cells | ||||||
| Cell Model | Volt(V) | Capacity(Ah) | Inpendance(mΩ) | Weight(g) | Cycle life | Cycle condition |
| TB-01865135C-12Ah | 3.2V | 12Ah | ≤12 | 310±10 | 2000 cycles | 100% DOD |
| TB-02707145C-20Ah | 3.2V | 20Ah | ≤10 | 525±10 | 2000 cycles | 100% DOD |
| TB-02707145D-20Ah | 3.2V | 20Ah | ≤4 | 525±10 | 2000 cycles | 100% DOD |
| TB-02707180C-25Ah | 3.2V | 25Ah | ≤6 | 650±10 | 2000 cycles | 100% DOD |
| TB-02707180D-25Ah | 3.2V | 25Ah | ≤4 | 650±10 | 2000 cycles | 100% DOD |
| TB-02707180C-27Ah | 3.2V | 27Ah | ≤4 | 660±10 | 2000 cycles | 100% DOD |
4. Electrical Characteristics
| item | Criteria | Test method |
| 3.1 High Temperature Discharge Performance
| Capacity retention at 55℃ :≥95%
| A cell is charged in accordance with 3.2, and stored in high temperature chamber at 55℃for 5 h, then discharged to cut-off voltage at a constant current of 1C. After that, fetch out the cell and place it in the ambient temperature of 25℃±5℃ for 4 h, then check its appearance |
| 3.2 Low Temperature Discharge Performance
| Capacity retention at -20℃ :≥70%
| A cell is charged in accordance with 3.2, and stored in certain ambient temperature for 24hours,then discharged to cut-off voltage(1.8V) at a constant current of 1C. After that , fetch out the cell and place it in the ambient temperature of 25℃±5℃for 4hours. |
| 3.3 Rate Charge Performance in Normal Temperature
| 2C charge capacity≥80%
| Under the ambient temperature of 25℃±5℃, a, 1C constant discharge till the cut-off voltage, standby for 1h; b, charge at 2C current till 3.65V, standby for 1h; c, constant discharge with 1C current till 2.0V.
|
| 3.4 Rate Discharge Performance in Normal Temperature
| 3C discharge capacity≥95%
| A cell is charged in accordance with 3.2, then discharged to cut-off voltage at certain current in an ambient temperature of 25℃±5℃.
|
| 3.5 Cycle Life (25℃±5℃)
| ≥2000cycles | A cell is 1C CC/CV 3.65V fully charged, after that stored for 30min;Subsequently, the cell is discharged to cut-off voltage at a constant current of 1C, and stored 30min prior to next charge-discharge cycle, until the capacity retention＜80%, and record all the cycles
|
4. Safety Performance
| Item | Test name | Result |
| 1 | Over charge | No fire,no explosion |
| 2 | Over discharge | No fire,no explosion |
| 3 | Short Circuit | No fire,no explosion |
| 4 | Drop | No fire,no explosion,no leakage |
| 5 | Hot oven | No fire,no explosion |
| 6 | Crush | No fire,no explosion |
| 7 | Needle puncture | No fire,no explosion |
5. Warranty:
6. Application
