headway 40146L 3.2V 20Ah lithium ion battery cells

Details

Headway 40146L 3.2V 20Ah lithium ion battery cells suitable for household appliances, consumer electronics, electric bicycles/scooters, electric vehicles, electric wheelchairs, power systems, solar energy storage systems.

Details

Description

Specifications

Parameter	Specification
Nominal Capacity	20Ah@0.2C
Minimum Capacity	19.5Ah@0.2C
Nominal Voltage	3.2V
Max Charging Voltage	3.65±0.05 V
Discharge Ending Voltage	2.5±0.05 V
Charge Current	Standard charge: 0.5℃ Max charge:2C when T≥10℃ Max charge:1C when 10℃≥T≥0℃ Max charge:0.1C when 0℃≥T≥-10℃
Discharge Current	Standard discharge:1C Max discharge:3C Max instant discharge:6C
Recommended Charge and Discharge Cell Surface Temperature	Charge:0～45℃ Discharge:-20～60℃
Maximum Allowable Charge and Discharge Cell Surface Temperature. Charging and Discharging at these Conditions Will Shorten Cell Cycle Life.	Charge:60℃ Discharge:75℃
Humidity Range	0～90%RH(none condensing)
Internal Resistance	≤4mOhm(AC Impedance, 1000HZ)
Cell Dimension	Height:146mm Max Diameter:41mm Max
Weight	445±10 g

Cell bar code and appearances

Cell dimensions：

Electronic performance

Parameter	Specification
Discharge Rate Capability	discharge capacity at 1C	≥19.2Ah
	discharge capacity at 3C	≥18.6Ah
	discharge capacity at 5C	≥18Ah
Cycle Life	discharge capacity of 3000 the cycle @ 100% DOD	≥16Ah
High-Low Temperature Discharge Performance (0.5C Discharge)	discharge capacity at -10℃	≥16Ah
	discharge capacity at 0℃	≥15Ah
	discharge capacity at 60℃	≥19.4Ah
Storage Performance	residual capacity after 28d storage	≥19.2Ah
Storage Performance	recover capacity after 28d storage	≥19.6Ah

Warning in handling the lithium-ion cell

To prevent the possibility of the cell from leaking, heating, explosion, please observe the following precautions:

Don’t immerse the cell in water;

Don’t use and leave the cell near a heat source such as fire or heater; When charging, use a cell charger specifically for that purpose;

Don’t reverse the positive and negative terminals; Don’t discard the cell in fire or heater;

Don’t connect the cell to an electrical outlet directly; Don’t discard the cell in fire or heater;

Don’t connect the positive and negative terminal directly with metal objects;

Don’t transport and store the cell together with metal objects such as necklaces, hairpins; Don’t directly solder the cell;

Don’t pierce the cell with a nail or other sharp object;

Don’t leave the cell with low SOC for long time, it should keep the cell with around 50% for long term storage (less than 6 months). Should charge the cell to 50% SOC after each 6 months.