Hope this is the right place for this request for info.

I have an EZ-Star ARF which came with a Hi-Tech Neon 3ch Tx, a Permax Speed 400 6v which I upgraded to a 400 7.2-9v and an 8A ESC. I put standard Alakline Energizers in my Neon Tx the first time and they lasted pretty good. The second set lasted less than a week, mabey 4 flights. Today I put Energizer 2 Titanium Alkaline's in and they didn't last more than 5 minutes. I measured the voltage today in the batts and they are good as new with 1.5v. I also saved the old batts and they measure 1.2v each. Is there something in the Neon not working properly?

As I mentioned, I also put a speed 400 7.2v in my EZ-S and it flew great for less than 5 minutes then cut out. Do I need a different ESC? Was it because the batteries in my Tx went low? I am using 8 cell 1100mA 15c.

I wanna fly!