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Shenzhen Topband New Energy Co.,Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate , engaged in design , research , manufacture , sales and after sales for LiFePO4 battery( cell & pack & BMS/PCM) .
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3.2V 20Ah Lifepo4 Prismatic Cells , Rechargeable Lifepo4 Battery

3.2V 20Ah Lifepo4 Prismatic Cells , Rechargeable Lifepo4 Battery

Brand Name : Topband
Model Number : TB-027070145C-Fe-20Ah
Certification : CE/UN38.3/MSDS/UL
Place of Origin : China
MOQ : 1000pcs
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 : 20Ah
Weight : 520g
Dimension : 70x28x145mm
Cycle life : ≥2000 (100% DOD)
Discharge temperature : -20℃ - 60℃ (-4℉ - 140℉ )
Charge temperature : 0℃ - 45℃ ( 32℉ - 113℉ )
Warranty : 2 years
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3.2V 20Ah Lifepo4 Prismatic Cells , Rechargeable Lifepo4 Battery

1. LiFePO4 lithium battery cells 3.2V 20Ah 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. LiFePO4 lithium battery cells 3.2V 20Ah Specification

ItemSpecificationRemark
2.0 Nominal Capacity20Ah0.5C discharge capacity
2.1 Minimum Capacity20Ah
2.2 Internal Impedance≤10.0mΩBy AC 1KHz
2.3 Nominal Voltage3.20V
2.4 Cell Weight520±10gcontaining package
2.5 End-of-charge Voltage3.65VAt CC mode
2.6 End-of-charge Current0.05CAt CV mode
2.7 End-of-discharge Voltage2.00V
2.8 Charge Method0.5C CC/CV180 minutes
2.9 Quick Charge Method1C CC/CV90 minutes
2.10 Max Continuous Discharge current40AContinuous Discharge Time: 30 minutes
2.11 Max pulse Discharge Current60AContinuous Discharge Time: 10 seconds
2.12 Cycle Life≥2000 cycles

1C Continual Discharge: ≥80%

(100% DOD)

2.13 Operating

Temperature Range

Charging Temperature0~45℃

Ambient temperature:25℃±5℃

Cell exterior temperature must be <65℃

Discharging Temperature

-20~55℃


Ambient temperature: 25℃±5℃

Cell exterior temperature not exceed 80℃

Storage Temperature-20~35℃Recommended temperature range for long term storage is –10~ +30°
2.14 Shelf Life2 years
2.15 AppearanceWithout break, scratch, distortion, contamination, leakage and so on

3. LiFePO4 lithium battery cells 3.2V 20Ah Characteristics


4. LiFePO4 lithium battery cells 3.2V 20Ah dimension


5. Safety test


No.ItemTest MethodCriteria
6.1Short- 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
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


6.3Over 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


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


6.6Stick 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


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



Product Tags:

Lifepo4 Battery Pack

      

Lithium Iron Phosphate Cells

      
China Customized Inflatable Bumper Ball Game Bubble Adult Grass CE supplier

3.2V 20Ah Lifepo4 Prismatic Cells , Rechargeable Lifepo4 Battery Images

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