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High Power Rechargeable Lifepo4 Battery , 3.2V 20Ah Lifepo4 Pouch Cells No Memory Effect
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Brand Name:Topband
Model Number:67150195
Certification:CE/UN38.3/MSDS/UL
Company Data
Active Member
Contact Person
Jerry Yang
Business Type:
86-755-27651888-3215
Business Type:
Manufacturer Exporter
Officials:
Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
3.2V 20Ah Lifepo4 Prismatic Cells , Rechargeable Lifepo4 Battery
1. Feature
- Good safety performance
- High power, maxiumu discharge current up to 10C
- Long cycle life time, ≥2000 cycles (100% DOD)
- Low self-discharge, less than 3% per month
- No Memory Effect
- No pollution during manufacture and usage.
2.specification
| No. | Item | Standard | Note |
| 3.1 | Nominal capacity | 20000mAh | 25±2℃ 0.5C discharge capacity |
| 3.2 | Min capacity | 20000mAh | |
| 3.3 | Nominal voltage | 3.2V | |
| 3.4 | Charging ened voltage | 3.65V | |
| 3.5 | Charging current | Standard charging:0.3C (6A) | |
| Fast charging:0.5C (10A) | |||
| 3.6 | Charging time | Standard charging:5 hours (Ref.) | |
| Fast charging:3 hours (Ref.) | |||
| 3.7 | Max charging current | 1C (20A) | |
| 3.8 | Continuous working current | 0.5C (10A) | |
| 3.9 | Max discharge current | 3C (60A) | ≤60S |
| 3.10 | Discharge end voltage | 2.4V | |
| 3.11 | Internal resistance | ≤4.0mΩ | |
| 3.12 | Weight | 410±10g | |
| 3.13 | Working temperature | Charging:5～45℃ /Discharge:-20～60℃ | |
| 3.14 | Storage temperature | -10～30℃ | |
| 3.15 | Appearance | Without break, scratch, distortion, contamination, leakage and so on | |
3.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
- Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.
- Battery should be stayed in the ware house -20℃～35℃ where it’s dry, clean, shade, and well-ventilated.
- The battery should be stored in 50% SOC during transportation.
- The battery need to be charged every 6 months if out of use.
- Keep the battery against dropping, turning over and serious stacking during loading
7. Certification
Company Profile
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.
Smart Bluetooth & WIFI connection is is our patent
feature, equipped with IOS & Android app to
monitor the instant battery status (SOC, OCV, charge
current, ambient temperature, and errors included).
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.
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