Hi all,
I am working to develop lead acid battery monitoring system using BQ34z110 EVM. I selected the chem ID 800 because that it's the closest to my battery. Based on id 800, it seems like only support up to 6 cells battery 12 volts, but I am using the battery 12 cells 24 volts in my case. Below the step by step, I did to get the battery information in Bq software.
1. Flash the BQ34z110 by using bq34z110_V0_04_BLD_0004.senc file.
2. The BQ software showed the wrong voltage result which equal to 12450 mV. By using Multimeter, the actual battery voltage supposes to be equal to 24140 mV.
3. To validate the voltage program, I did the voltage calibration. The system showed all the correct data from the battery measurement.
4. To test the BQ34z110 is working well or not, I tried to remove the connection with battery and reconnecting again. In this time, I got the correct data for the voltage, however the remaining capacity and state of charge data was showing the wrong result. In prior measurement, the remaining capacity is equal to 2134 mAH but after this test, it is showing the remaining capacity 3867.
Based on that explanation, I have the problem regarding the remaining capacity and state of charge measurement. Can you please guide me, how can I setup the BQ34z110 to work on 12 cells battery using the Chem ID 800 for 6 cells battery?
Thank you.
Hi TI support team, I am working to develop lead acid battery monitoring system using BQ34z110 EVM.