There was some discussion about relocating the battery from turret to the hull and using two batteries in one tank, I know there is a Tamiya style connector that connects two batteries to one DMD, its y shaped with a Tamiya connector at either end, I used to have a link to that item but deleted it, as far as relocating the single battery from turret to hull http://www.rcpanzer.de/apboard/thread.php?id=12434 I believe thats a custom battery, it appears its 5 cells bottom with 1 cell on top.

Will