Other Parts Discussed in Thread: BQ34110
Hello,
I'm developing a battery monitoring system and datalogging device for electric scooters and power wheelchairs using a pair of 12V PbA deep-cycle batteries connected in series (total of 24V for the battery set). The batteries are charged via an external charger and I need to record how frequently and for how long the batteries get charged. The scooter and wheelchairs being used are consumer products being used in a research study. The batteries are two, 12V, 35Ah, SLA (AGM) in series (BrightWay BW12350). These dataloggers will be running on the scooters/chairs for a total of 12 weeks, so battery aging may be a concern towards the end of the study.
I am currently working with the BQ34Z100-G EVM, but before I go through the process of characterization and optimization I'd like to be sure I'm using the correct part.
I noticed that another part, BQ34110, was recommended to other users for different PbA battery applications (https://e2e.ti.com/support/power-management/f/196/t/765014?tisearch=e2e-sitesearch&keymatch=BQ34Z100 & https://e2e.ti.com/support/power-management/f/196/t/569973?BQ34Z100-G1-Lead-Acid-battery-vs-Pack-charactoization). The threads contain concerns regarding the depth of discharge and the gauging errors associated with battery lead wire resistances in PbA.
Is either the BQ34Z100-G or the BQ34110 most suitable for this application, or is there another gauge and EVM that would be a better choice?
Thanks!
