I have an optimum red top battery I bought in May of 2020. I started thinking about my codes with remote start and wondered if maybe the battery wasn't holding the right volts. I had the battery replaced with a 2022 March build date. 1st remote start no codes. Did a second one like 30 mins later...steering wheel angle sensor again. What volts should my battery show when running with AC and all the normal stuff on? Should it fluctuate between 13.3 to 13.8? The battery tested at the store showed all the cores were about gone so it's good I got a new one. But I'm wondering if the alternator is not charging my battery properly.