Electronic Characteristics test and inspection:
Standard testing environment
Unless special stated, tests should be done within one month of delivery and the charging-recharging times is less than 5 times. The following is test conditions:
The requirement of measure instrument
The measure instrument is passed tested by qualified institute.
The accuracy of the size instrument is not more than 0.01mm.
The accuracy of multimeter is not less than 0.5%. while measure the voltage, the internal resistance mustn’t less than 10KΩ.
The principal of the internal resistance is 1KHz LCR, the accuracy is 0.2%.
The internal resistance is changeable, it varies according to the temperature and the charging mode. And it is relevant to the PTC and the length and the Capacity of the drawing line.
The current accuracy of the battery test system is more than ±0.1%, is obarically accuracy is ±0.5%, timer accuracy is less than ±0.1%.
The accuracy of the temperature meter is less than ±0.5℃.
Any visual inspection defects will affect the electronic characteristics, such as cracks, leakage, and flaw, are not inexistence. 4.4 Charge/Discharge Methods and Test Conditions
Charging Current Standard Charging Quick Charging Standard Discharge Charging Time
Temperature & Humidity
Testing Condition and Method
Standard CC：0.2C Quick CC：0.5C
Constant Current Charging at 0.2C to 4.2V. Constant Voltage Charging at 4.2V to cut-off current≤0.05C Constant Current Charging at 0.5C to 4.2V. Constant Voltage Charging at 4.2V to cut-off current≤0.05C
Constant discharge at 0.2C to cut-off voltage of 2.75V. Standard charging time ：6 hours
Q u i c k c h a r g i n g t i m e ： 2 . 5 h o u r s S t a n d a r d c h a r g i n g ： 0 ℃ ~ 4 5 ℃ 4 5 ~ 8 5 % R H Q u i c k c h a r g i n g ： 1 0 ℃ ~ 4 5 ℃ 4 5 ~ 8 5 % R H Standard discharging：-20 ℃~ 60 ℃ 45~85% RH
3.6~3.9V (Before shipping)
The Max. voltage while charging is not more then 4.25V.
protective voltage designed on PCB board should not more then 4.3V.