remixed for ix12 and 2s lipo

This is a remix of the dx9 battery cover for the Spektrum ix12 radio. It's been scaled like 101-102% and the hole removed and a battery holder added for the HobbyKing turnigy 2s 1800mah lipo. To power a crossfire module on the ix12.

I added some foam to the backside near the center to keep the tab tight against the radio. Else after a while that part of the cover curves and it just wants to slide out. Putting some outward pressure on it with foam or the soft velcro side helps keep the tab