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Shenzhen Topband New Energy Co.,Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, decicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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Enviromental Rechargeable Lifepo4 Battery Cells TB-027070169D-Fe-27Ah 

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Shenzhen Topband New Energy Co.,Ltd
Country/Region: China
Tel: 86-755-27651888-8008
Contact Person:
Mr Jerry Yang

Enviromental Rechargeable Lifepo4 Battery Cells TB-027070169D-Fe-27Ah 

Brand Name : Topband
Model Number : TB-027070169D-Fe-27Ah
Certification : CE,UL,UN38.3,MSDS
Place of Origin : China
MOQ : 500pcs
Price : Negotiable
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 : 27Ah
Internal Impedance : ≤8.0mΩ
Dimension : 70x27x169mm
Cycle life : ≥2000 (100% DOD)
End-of-discharge Voltage : 2.0V
Warranty : 2 years
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Enviromental Rechargeable Lifepo4 Battery Cells TB-027070169D-Fe-27Ah

1. LiFePO4 battery cells 3.2V 27Ah advantage

  • Green product: LiFePO4 material is no harm to enviroment and human being

  • Cycle life: More than 2000 cycle times

  • Very safe: It have the best safety and steady performance,no fire ,no exploding under the condition of over-charge.

  • Light weight and smaller dimension: The dimension compares with other battery.about 1/2-2/3 weight of lead acid

  • Great capacity and more powerful,rechargeable battery: We can install many single cells in series and in parallet and it can fully discharge

  • No memory effect: It can be recharged anytime,no reduction of the capacity

2. LiFePO4 battery cells 3.2V 27Ah Specification

ItemSpecificationRemark
5.0 Nominal Capacity27Ah25±5℃,1C discharge capacity
5.1 Typical Capacity27.5Ah
5.2 Internal Impedance≤8.0mΩBy AC 1KHz
5.3 Nominal Voltage3.20V
5.4 Cell Weight680±20g
5.5 End-of-charge Voltage3.65VAt CC mode
5.6 End-of-charge Current0.05CAt CV mode
5.7 End-of-discharge Voltage2.00V
5.8 Charge Method1C CC/CV
5.9 Quick Charge Method2C CC/CV
5.10 Max Continuous Discharge current3CContinuous Discharge Time: 18 minutes
5.11 Max pulse Discharge Current5CContinuous Discharge Time: 10 seconds
5.12 Cycle Life≥2000cycles

0.5C Continual Discharge: ≥80%

(100% DOD)

5.13 Operating

Temperature Range

Charging Temperature0~45℃Ambient temperature:25℃±5℃
Discharging Temperature-20~55℃Ambient temperature: 25℃±5℃
Storage Temperature-10~30℃Recommended temperature range for long term storage is -10~ 30℃
5.14 Shelf Life2 yearWarranty since the date of the shipment
5.15 AppearanceWithout break, scratch, distortion, contamination, leakage and so on

3. LiFePO4 battery cells 3.2V 27Ah Safety Test

No.ItemTest MethodCriteria
3.1Short- circuit TestA 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
3.2

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


3.3Over 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


3.4

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


3.5

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


3.6Stick 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


3.7

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



4. LiFePO4 battery cells 3.2V 27Ah dimension


5. Warranty:

  • The products will be checked everything is fine before ship out;
  • 2 year warranty. (The products could be Exchanged or Refunded if it defected in 2 year, in the case of correct operation according to the technical specification.)
  • Our products have received high reputation. and we own the best after-sale service. If any problems happen, our team will do our best to solve for customers.

6. Certification



Product Tags:

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