Measureing charging behavior by power supply.

Hi All,

I am doing some tests.

1. Low battery test, I use a poewr supply to replace the battery of device, the testing result looks good and correct.

1. I need to test the charging behavior, I still connect the power supply instead of battery of device, when I plug in charger, however, the voltage of power supply goes to 5V ( however, I set to 2.8V originally ), it should be the USB charger voltage, is there any problem ?

It seems some current limitation, and the device will detect the current is already smaller than the expection, cut off charging current, is that correct ?

Thanks! Boki.