Big news! The latest version of Neware BTSDA(update on 2017-10-10) is released with dQ/dV function. 

Please upgrade the BTSDA to this version, if you are using Neware BTS4000(or you are using the BTS7.5.4, BTS7.5.5, BTS7.5.6 or BTS7.6.0 software).  

dQ/dV Curve:

dQ/dV Differential capacity curve:

Where there is a peak on the curve meaning the charge and discharge curves have a voltage platform, and different peaks represent different electrochemical reactions.

dQ_m/dV Differential specific capacity curve: dQ/Active material quality/dV

dQ/dV curve setting: