2009 4.8 with 4x4 and DSC warnings

[Purdy19]

So I got a AWD system failure warning and a traction control failure warning (DSC). Looked into it, found that it's a battery issue most times. Bought a new battery and it solves the issue for 2-3 weeks. Drove 60+ miles yesterday and it all happened again. Checked the battery and it was at 10.2v. Took the battery to Autozone where I bought it and the guy hooked me up and warrantied me a new one. Changed the battery and drove roughly 150 miles between yesterday and today. Then boom, it all happened again. I get the car jumped and drive about 10 miles and park it, where it sits now. Anyone have any ideas or info?