I'm looking to a solution to determine the State of Healt of Acid-Lead batteries (the State of Charge is not that important).
I understood the BQ34Z100 can provide some indication on this.
How is (in terms of reliability) the indication from this chip vs EIS (Electrochemical Impedance Spectroscopy) type of analysis 9like the one mentioned in http://www.ti.com.cn/cn/lit/wp/spry215/spry215.pdf) ?
The disadvantage i see on the BQ34Z100 is that I need to put a shunt in the circuit and (but i'm still trying to understand how the Impedance Track actually works) be able to take measurements in almost Open Circuit conditions (Relaxation period), which i'm not sure I can do.
Or do I understand wrongly the way the BQ34Z100 works?
thanks for any comment / clarification