Novak GTX cutting out

[lucias]

I recently bought some 7 cells off of an eBay store. They are Tenergy 3800, they are for a slash I was setting up for my cousin. I tried these batteries in my XXXT and when I give it full throttle they esc stops and shuts off until i let off and back on again... If I hold it up off the ground it will let me go full throttle. If i plug in the 2s lipo it runs without a problem. I can't figure out where the problem is.. is there something wrong with the batteries or does it a programming issue?