There is probably a quadrotor fraternity somewhere, and that would be a better source. The motors look pretty serious and four of them can present a 30 Amp load. That is the only information you have, and I think it translates to 1 minute 13.2 seconds of flying time - presuming the batteries can actually get that sort of power out and it will actually fly, and the Arduino is just going along for the ride. You should either test a motor with the propeller on, thereby ascertaining the true load, or take the suppliers recommendation for the battery. Either way, I don't think the Arduino is a player.