
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
Shenzhen Topband Battery Co., Ltd
Shenzhen Topband Co., Ltd. was registered in so-called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007.
After years of rapid development, now Topband takes lithium battery as the core technology and has become one of the leading suppliers of lithium battery solutions in China, focusing on nano lithium iron phosphate/ LiFePO4 technology for EV, RV/ caravan, marine, motorcycle, golf cart / trolly, UPS, solar storage, medical, floor scrubber, industrial, commercial use, etc.
Topband has more than 5000 staffs, covers an area of 100,000 square meters. And large production plants are mainly located at Shenzhen and Huizhou
Our R&D team of over 300 professionals, in cooperation with Tsinghua Research Institute and Harbin Industrial University have laid a firm foundation of our leading technology.
We have got the certificates of ISO9001, ISO14001, OHSAS18001, TS16949 and UL, CE, CB, UN38.3, TUV, etc.
Topband is a Hi-tech enterprise. Since the company established, with innovation, we have committed ourselves to making people’s lives more comfortable and high-efficient. We and our companions are working hard at making technology progress to let people enjoy the changes of new technology.