Firstly we will choose the cells with 10 MV gap on Voltage, 20 MAH gap on Capacity.
Internal resistance gap should be controlled within
3 MΩ
that would be best choice for us.
When Chinese battery cells is cycled for 800 times, there is 80% power left in battery cells. And imported cells have better performance than Chinese Cells.
So this is our lowest testing standards.
Better cells ensure good consistance of battery pack, we are doing it now !!