Alright, battery problem seems to be persisting. Drove the car to work today and on the freeway the battery light would start sporadically flickering, no defined rhythm or anything. Light went off completely when i got off the freeway and was on side streets. So, i called Costco and they sell Group 65 Interstate AGM batteries (i've read this type of battery is an 'upgrade'?), but i'm also thinking potentially the alternator is going bad.
I haven't pulled the trigger on anything yet as I haven't done any diagnosing. I'll probably take the car (when i can, soon) to Autozone or something to have both the battery and alternator tested. I don't have access to my multimeter at the moment and don't want to buy a duplicate one just for this.
IF the alternator is going bad, any recommendations on a replacement 130amp 3G alternator? LMR SVE brand, other brand?