Quality is important to both buyer and seller . We have strict quality control. Eparts mobile battery suppliers for better quality. Each battery has to be tested for over 60 processes strictly. We have been dedicated to improving the problems you are concerning about. Our defective rate is less than 0.1%, which is much lower than the peers. And we provide 12 months warranty for our products .
Here introduce the quality test and equipments during the production .
1. Cell reliability test
2. High-low temperature test
Function：Cell/battery reliability testing of safety testing and different temperature characteristic testing
Parameter：
1） Temperature：-40-150℃
2） Humidity：20%-98%RH
3. Cell capacity test
4. Battery capacity test
5. PCM test
Main test specification：
1） Over voltage protection
2） Under voltage protection
3） Over-current protection
4） Short-circuit protection
5） Reverse-charge protection
6） Reverse-discharge protection
7） impedance testing
8） Power consumption
9） I2C test
More than 9 Test Indicators, omnibearing Check PCM Quality
6. Battery test
1） Charge test
2） Discharge test
3） Over-current protection
4） Short-circuit protection
5） Voltage test
6） impedance testing
7. Soft test
1） Voltage&state of charge test
2） Temperature test
3） Fullcharge capacity test
4） State of health test
5） standbycurrent test
…………
More than 100 software parameter tests
8. Ageing test
1） Batteries 96h ageing test
2） Shooting 0.2% bad batteries
