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Big news! The latest version of Neware BTSDA(update on 2017-10-10) is realeased with dQdV 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.

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

dQ/dV curve setting: