Jester is correct. That battery is way to big for the system you have. At 13 oz and a RTF weight of 32qz (which is to heavy for the power system you have) your air frame, covering, motor, esc, will have to be 19oz or less; not impossible or really that hard to do, but your finished plane will fly much better at 16-20oz. When you ask for advice it may be to your advantage to take it. Small heavy planes are difficult to fly.