LiPoly Battery Performance Standards
LiPoly Battery Standard Charge/Discharge Conditions | LiPoly Battery Cycle Life Test Standard | LiPoly Battery Short Circuit Test Standard | LiPoly Battery Abnormal Charging Test Standard | LiPoly Battery Thermal Shock Test Standard | LiPoly Battery Vibration Test Standard | LiPoly Battery Free Drop Test Standard | LiPoly Battery Storage Standard and others
Before proceeding the lipoly battery tests, the cells should be discharged at 0,5C to 3,0V cut-off. Unless otherwise stated, tests should be done within one month of delivery under the following conditions:
Ambient Temperature: 23°C±2°C
Relative Humidity: 65±20%RH
LiPoly Battery Standard Charge/Discharge Conditions
The lipo battery will be charged to 4,2V with 0,5C from constant current to constant voltage, when the current is 0,5C, stop to load.
LiPoly Battery Cycle Life Test Standard
Charging with 0,2C to 4,2V and then discharging with 0,2C to 3,0V. 80% or more capacity of 1st cycle capacity at 0,2C discharge of operation.
LiPoly Battery Short Circuit Test Standard without fire and explosion
After a 0,2C standard charge, the lipoly battery located in fume hood is to be short-circuited by connecting the positive and negative terminals with and an external load of less than 100mΩ till the lipoly battery case temperature has returned to near ambient temperature.
LiPoly Battery Abnormal Charging Test Standard without fire and no explosion
After a discharge 1C to 3,0V cut-off, constant charge current 1C to 4,8V, then charge on 4,8V no less than 7hrs.
LiPoly Battery Thermal Shock Test Standard without fire and explosion
After a standard charge, the lipoly battery is placed in an oven and is heated up at a rate of 5°C/min until the temperature reaches 130°C. The
furnace shall be maintained at 130°C for 10 minutes.
LiPoly Battery Vibration Test Standard without fire and explosion
After a standard charge, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz~ 55Hz, the excursion of the vibration is 1.6mm.The cell shall be vibrated for 30 minutes per axis of XYZ axes.
LiPoly Battery Free Drop Test Standard without fire and explosion, Residual capacity ≥ 95%
After a standard charge, the lipoly battery is dropping to the wood board with a thickness of 18mm to 20mm on the cement ground; the height shall be 1m measured from the lowest point of the lipoly battery to the wood board surface. Drop the cell from X, Y, Z direction (including face side and reverse side direction each) each time, then measured the
capacity at discharge current 0,5C and a cut-off voltage of 3,0V, and then cycled times to measure the maximal discharge capacity.
LiPoly Battery Storage Standard and others
Ambient Temperature: 23°C±5°C
Relative Humidity: 65±20%
* Please activate the lipoly battery once every three months according to the following method:
Charge at 0,2C to 4,2V, rest 5 min, then discharge with 0,2C to 3,0V/cell, rest 5 min, then charge at 0.2C to 3.9V.
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