Hey folks just wondering if anyone has a set of DC X11's ? I bought a set about a month ago and I'm dissapointed in how my batteries are holding up. I flew 7.5hrs today and they're dead , and I've tried different types of bat. . I'm using rechargables now , but still think I should get a few days out of them . Just wondering if there is something wrong with my headset???? I know people with Bose that get a lot more life out of their batteries.