Thought of that but not sure how I would know when I was aproaching the lvc of 9v for the 3s unless the cc bec has a lvc built in. Haven't been home to mess with it been on storm work for the last couple days bit I will mess with it tomorrow. Also the small 3s I have is too long I think to cram inside the tx where the four aa batts went. I'll post a pic or two of the whole setup when I'm done.