Shenzhen Topband Battery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 450Mwh/year |
| Delivery Time | 2~4weeks for samples; 4~6weeks for mass production |
| Packaging Details | standard export carton |
| Material | LiFePO4 |
| Norminal voltage | 3.2V |
| Norminal capacity | 23Ah |
| Weight | 650g |
| Dimension | 70x27x180mm |
| Cycle life | ≥2000 (100% DOD) |
| Discharge temperature | -20℃ - 60℃ (-4℉ - 140℉ ) |
| Charge temperature | 0℃ - 45℃ ( 32℉ - 113℉ ) |
| Warranty | 2 years |
| Brand Name | Topband |
| Model Number | TB-027070180C-Fe-23Ah |
| Certification | CE/UN38.3/MSDS/UL |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 450Mwh/year |
| Delivery Time | 2~4weeks for samples; 4~6weeks for mass production | Packaging Details | standard export carton |
| Material | LiFePO4 | Norminal voltage | 3.2V |
| Norminal capacity | 23Ah | Weight | 650g |
| Dimension | 70x27x180mm | Cycle life | ≥2000 (100% DOD) |
| Discharge temperature | -20℃ - 60℃ (-4℉ - 140℉ ) | Charge temperature | 0℃ - 45℃ ( 32℉ - 113℉ ) |
| Warranty | 2 years | Brand Name | Topband |
| Model Number | TB-027070180C-Fe-23Ah | Certification | CE/UN38.3/MSDS/UL |
| Place of Origin | China | ||
| High Light | Lifepo4 Battery Pack ，Lithium Iron Phosphate Cells | ||
| No. | item | standard | remark |
| 2.1 | Nominal Capacity | 23Ah | 25±5℃,1C discharge |
| 2.2 | Internal Impedance | ≤6mΩ | |
| 2.3 | Nominal Voltage | 3.2V | |
| 2.4 | Cell Weight | 650±20g | |
| 2.5 | End-of-charge Voltage | 3.65V | At CC mode |
| 2.6 | End-of-charge Current | 0.05C | At CC mode |
| 2.7 | End-of-discharge Voltage | 2.00V | |
| 2.8 | Standard Charge Method | 1C CC/CV | 25±5℃ |
| 2.9 | Max pulse Discharge Current | 5C | Continuous Discharge Time: 10 seconds |
| 2.10 | Cycle Life | ≥2000cycles | 1C Continuous Discharge:≥80% SOC (100% DOD) |
| 2.11 | Calendar lif | 8years | |
| 2.12 | Charging Temperature | 0～45℃ | |
| 2.13 | Discharging Temperature | -20～55℃ | |
| 2.14 | Storage Temperature | -10～30℃ | |
| 2.15 | Terminal torsion | ≤5.5N·m | Locknut is recommended |
| 2.16 | Apprearance | Without break, scratch, distortion, contamination, leakage and so on | |
4. LiFePO4 reachargeable battery cells 3.2V 23Ah dimension
5. Safety test
| No. | Item | Test Method | Criteria |
| 6.1 | Short- circuit Test | A cell is tested in accordance with 3.2, after that the cell is short-circuited by connecting the positive and negative terminals with a wire for 10min, the wire has a maximum resistance load of 5mΩ., then observe for 1h. | No fire, no explosion |
| 6.2 | Overcharge Test
| A cell is tested in accordance with 3.2, then 1C constant current charged till the voltage reaches 1.5 times of the specified end-off charge voltage, or the charge time reaches 1h, then stop charge, and observe for 1h. |
No fire, no explosion
|
| 6.3 | Over discharge test | A cell is tested in accordance with 3.2, then 1C discharge for 90min, then observe for 1h.
|
No fire, no explosion, no leakage
|
| 6.4 | Crush Test
| A cell is tested in accordance with 3.2, and then is placed on the crush machine, the axis is parallel to the crush equiment, and it is crushed between two flat surfaces till the crushing force is gradually approaching 200 kN, or voltage reaches 0V,or reaches 30% distortion, then observe for 1h. |
No fire, no explosion
|
| 6.5 | Impact Test
| A cell is tested in accordance with 3.2, and then placed on the impact flat. A Φ15.8mm bar is to be placed on the center of the cell. A 9.1kg weight is dropped from a height of 610mm onto the cell, the distortion is allowed. |
No fire, no explosion
|
| 6.6 | Stick Test | a) A cell is tested in accordance with 3.2 b) use φ5mm～φ8mm high temperature resistance steel needle, with speed of 25±5mm/s, to go through the cell from vertical direction of pole plate, the penetrate position should be close to the geometric center of plate surface, the steel needle remains in the cell;
|
No fire, no explosion
|
| 6.7 | Heating Test(130℃)
| A cell is tested in accordance with 3.2, and then heated in a circulating air oven. The temperature of the oven is raised at a rate of 5℃ per minute to 130℃±3℃ and remain for 30 min.
|
No fire, no explosion
|
6. Storage & Transportation
7. Certification
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1996
Total Annual:
240million-250million
Employee Number:
5000~5500
Ecer Certification：
Active Member
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 ... 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 ...
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