Hello,
I want to measure the SoC and SoH of two 12V 12Ah Lead Acid batteries (connected in series to make 24V) using a micro controller like Arduino.
I have a few queries regarding the above configuration.
1) The reference design provided for BQ34110 and BQ34110EVM has BAT+, BAT- and PACK- connections. I assume BAT+ is the positive terminal of the 1st 12V battery and BAT- is the negative terminal of the 2nd 12 V battery. May I know which is the PACK- terminal connection?
2) I have a 24V lead acid battery charger. Which terminal should I connect them in the circuit to measure the charging current, etc.?
3) Do I need to have a external relay in the circuit to turn on the charger?
4) I was reading that the IC has to be configured and calibrated. Do I need to purchase the evaluation board to do the configuration/calibration process or is there any script that can used to do the configuration/calibration using the IC only?
5) Is there any Arduino library or any API using which can be used to get the SoC and SoH measurements?
Any sample circuit measuring SoC & SoH of 24V Lead Acid Batteries will be really useful.
Thank you!