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High Power Rechargeable Lifepo4 Battery , 3.2V 20Ah Lifepo4 Pouch Cells No Memory Effect

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Shenzhen Topband Battery Co., Ltd

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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

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High Power Rechargeable Lifepo4 Battery , 3.2V 20Ah Lifepo4 Pouch Cells No Memory Effect

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	25±2℃ 0.5C discharge capacity
3.3	Nominal voltage	3.2V
3.4	Charging ened voltage	3.65V
3.5	Charging current	Standard charging:0.3C (6A)
3.5	Charging current	Fast charging:0.5C (10A)
3.6	Charging time	Standard charging:5 hours (Ref.)
3.6	Charging time	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

Product Tags:

lifepo4 prismatic cells

lithium iron phosphate cells

High Power Rechargeable Lifepo4 Battery , 3.2V 20Ah Lifepo4 Pouch Cells No Memory Effect

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