I have been flying the se-5a for almost a year now elecrified. I have a hacker a30 12xl running on a 4s2p thunderpower 4200 mah. I mount the batteries and esc under the cowling for balance. I swing a 13x6.5 e prop and she flies great. A little faster then scale, but at 1/2 throttle very realistic. There is a pix of it in the june issue of model airplane news taken from the AZ electric festival back in January. Good luck and enjoy......