LiPo Battery Performance Standards

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LiPo Battery Standard Charge/Discharge Conditions | LiPo Battery Cycle Life Test Standard | LiPo Battery Short Circuit Test Standard | LiPo Battery Abnormal Charging Test Standard | LiPo Battery Thermal Shock Test Standard | LiPo Battery Vibration Test Standard | LiPo Battery Free Drop Test Standard | LiPo Battery Storage Standard and others

Before proceeding with the lipo 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

LiPo Battery Standard Charge/Discharge Conditions

The lipo battery will be charged to 4,2V with 0,5C from constant current to constant voltage, and when the current is 0,5C, stop the load.

LiPo 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.

LiPo Battery Short Circuit Test Standard without fire and explosion

After a 0,2C standard charge, the lipo battery located in the fume hood will be short-circuited by connecting the positive and negative terminals with an external load of less than 100mΩ until the lipo battery case temperature has returned to near ambient temperature.

LiPo 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.

LiPo Battery Thermal Shock Test Standard without fire and explosion

After a standard charge, the lipo 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.

LiPo Battery Vibration Test Standard without fire and explosion

After a standard charge, the cell is fixed to a vibration table and subjected to vibration cycling. The frequency will be varied at 1Hz per minute between 10Hz~5 and 55Hz. The excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of the YZ axes.

LiPo Battery Free Drop Test Standard without fire and explosion, Residual capacity ≥ 95%

After a standard charge, the lipo battery drops 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 lipo battery to the wood board surface. Drop the cell from X, Y, and Z directions (including face side and reverse side direction each) each time, then measure 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.

LiPo Battery Storage Standard and others

Ambient Temperature: 23°C±5°C
Relative Humidity: 65±20%
* Please activate the lipo 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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