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

3. LiFePO4 rechargeable battery cells 3.2V 23Ah Characteristics

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

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:

36v 20ah lifepo4 lithium battery

lithium thionyl chloride battery

lithium-thionyl chloride battery

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