Other Parts Discussed in Thread: EV2400
1.When calibrating the voltage of the defective product, there is always a certain difference between cell 1 and other cells, like picture 1;
2.The current is -200mA when there is no load, then perform 2A load operation and calibrate the current(like picture 2), the current becomes -900mA when no load, like picture 3;
3.Exchange the IC and parts of periphery circuit with good sample, the issue still exists;
Please help to check what may be problem, thanks!