I already replaced the battery. I thought it was the battery because that battery was last swapped in 2016. It got me home after getting it running. I just drove straight 2½ hours. But 20 minutes after getting it back, it wouldn't start again without a jump. So I lean toward the starter being the issue. Which will involve getting under the car and removing an exhaust piece, which I'm not looking forward to. But I want to stick a multimeter on my alternator and be sure it's sending good voltage before I decide which way to fire the parts cannon again.