ORIGINAL: screwcap
thanks for the replys above. I have the spectrum 4.8v 1500mah nimh that came with my RTF Alpha. I'd like to upgrade to 6v, but it looks like a very tight fit being that the RX is directly in front of the 4.8v 4cell.
I have the same Alpha and Rx combo. I put in a 6V, 5 Cell 2500 Mah Nimh Flat pack in the battery tray and moved the Rx. to the sidewall of the fuse between the power switch and the gas tankby securing it there with velcro. This also gave me room to stretch out the longer antenna along the side wall of the fuse and I have easier access to the Rx.This did not seem to effect the CG of the plane as this area is right along the main wing spar. Problem solved!