I've got historical (lead-acid) battery voltage and current values logged by a micro controller every minute that is stored in a database (InfluxDB). I'd like to compute certain performance indicators of lead-acid battery used in a Solar PV application:

1. Variation in charging and discharging patterns (with a view to notice the trends in the performance of the battery)

2. No of cycles

3. Estimation of SOC

4. Estimation of charge capacity of battery in Amp-hr (Ah)

Can somebody help me here please.