I was sort of surpised to see where the manual tell you to put them, way in the back under the turtle deck. I started out putting the batteries toards the very back and on to of the center muffler tunnel. When I tried balancing the plane there it was really tail heavy. I ended up pushing my two batteries all the way up to the front of the center section. They are under the section where the removable canopy is but pushed all the way up to front in there (on top of the muffler tunnel). My ignition battery is up in the front where the motor is.


David