Thanks for the inputs guys. Went this morning to try a distance run and couldn't get the **** external to stop charging the DJI battery. I topped off the DJI batteries before heading out, they both showed 100%. The externals were showing 17.4 (3.5x4) and every time I'd try, it would go back to charging. Finally i just powered on the aircraft using only the externals, let it sit for 5 mins to drain a bit and tried it again. Once the externals went down to 17.2 (<4.3 per cell), i was able to get it to not charge and take off. This is the v3 5200 from Horizons.
Once i get my (replacement) Venom fly LiHV next week, I'm going to play with those a bit and see if maybe its the split pack. For the money, really not happy with the split pack so far. When it works, i am averaging 26mins per flight, was really hoping for 30+. Running one single Venom fly 2300 lihv (with both strapped, but one was dead, had both to balance weight), i got 25 mins .. so i dont think the 5200's are as good as advertised possibly. Maybe I'm still breaking them in .. i dunno. This is similar to the results DB shared in the Horizon v3 thread. I dunno .. will email Horizons.
I also found that I have a motor going out, three motors are cool to the touch, one is **** hot. I've noticed it also leans to the side now when i floor it, and was not performing how it should. This could be related to a flip over I had at the coast a few weeks back and almost caused a crash today, it spun out of control. So looks like I'm cracking the shell either way. I think while I'm in there, I'm going to do the direct mod to the aircraft and just avoid this going forward. Super frustrating .. but thanks for the inputs.