Chemistry ID

Dear all

     In the  Application Note SLUA372 "Support of Multiple LI-Ion Chemistries with impedance track ", the report decribes the process of selecting the correct chemistry ID for a particular cell. There are five steps for the test.

Step 3: Discharge at C/20 rate for 1 hour, then go to step 2. If the voltage goes below 3V, go to step 4

Step 5: Discharge at C/60 rate for 30 min, or until V<2.7V; go to step 4..

I am a bit confusion about the these two description( step 3 in particular). Should i check the cell voltage during the C/20 rate discharge or check the cell's voltage after  1 hour? 

And same to step 5..

Best regards

Jason